Sơ đồ mạch điện hệ thống chiếu sáng xe Luxgen U7 SUV 2.2 2011 đến 2018

Sơ đồ mạch điện hệ thống chiếu sáng xe Luxgen U7 SUV 2.2, sơ đồ mạch điện chiếu sáng của chiếc luxgen u7 2.2t đời 2012- 2018

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5 Suspension system

SC starting and charging system

MA Maintenance

LU Engine Lubrication System

RFD Final Drive Gear

PS Power Steering

11 Electrical appliances

EC engine control

RAX rear axle

SRS Supplemental Restraint System

7 Steering Wheel

BL Body, Door Locks and Security Systems

FSU front suspension

8 Protection system

ACS Cruise Control System

WT Wheels and Tires

RF Skylight

LT Lighting System

DI Driver Information System

EI Interior and Exterior

BCS Body Control System

ATC Automatic Air Conditioning System

AV entertainment, telephone communications and satellite navigation

PG Power, Ground and Circuit Components

10 Air conditioning

CO Engine Cooling System

FAX front axle

WW Wipers, washers, horns and power sockets

LAN LAN system

6 4

7

9

3

5 2

10 11 12 8

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Removal and Installation 31

Removal 31

Installation 31

Headlamp Assembly (Right Side) - Removal and Installation of High Beam Bulb 31

Removal 31

Installation 31

Checking the Circuits on Both Sides of the Low Beam Bulb 32 Checking the Circuit on One Side of the Low Beam Bulb 35 Headlamp Assembly (Left and Right Side) - Removal and Installation of Low Beam Bulb 38

Removal 38

Installation 38

Checking the Headlamp Height Adjustment Switch 39 Removal and Installation of the Headlamp Height Adjustment Switch 43

Removal 43

Installation 43

Removal and Installation of the Headlamp Assembly 44 Removal 44

Installation 44 Focus Adjustment 45

Configuration Diagram of Each Bulb in the Headlamp Assembly 47 HID Headlamp with Automatic Notes 8

Precautions for Supplemental Restraint System (SRS) “Air Bag” and “Seat Belt Pretensioner” 8 General Precautions for Maintenance Operations 8 Wiring Diagram and Fault Diagnosis 9 Headlamp with Manual Leveling System 10 Component Locations

10 System Description 10 Light Monitoring Warning Sound 11 Exterior Light Power Saving Control 11 Fail-Safe Function 11 Automatic Light Operation 11 CAN Communication System Description

11 Simplified Diagram

12 Wiring Diagram

13 Terminals and Reference Values

16 Engine Room Fuse Box Terminals and Reference Values 16 Light/Wiper Combination Switch Module (COLUMN SW ECU) Terminals and Reference Values 16 Basic Operation Procedures of Diagnostic Instruments

17 Fault Diagnosis

19 How to Perform Fault Diagnosis 19

Power and Ground Circuit

Check 20 Front Control Module (FECU)

Table of contents

5 4

6

8

3

7 2

LT

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10

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Installation 86

Checking the Headlamp Actuator Drive Circuit 87

Removal and Installation of the Automatic Leveling Headlamp Control Module (ALS ECU) 92 Removal 92

Installation 92

Removal and Installation of the Headlamp Assembly 93

Removal 93

Installation 93

Removal and Installation of the Front Suspension Level Sensor 94 Removal 94

Installation 94

Removal and Installation of the Rear Suspension Level Sensor 94 Removal 94

Installation 94

Focus Adjustment 95

Headlamp Assembly Bulb Arrangement Diagram 97

HID Headlamp with Active Steering Headlamp System (AFS) 98 Component Locations 98

System Description 98 Self-Initialization 101 HID Headlamp with Active Steering Headlamp System (AFS) Maintenance Precautions 102 Light Monitoring Warning Sound 102 Exterior Light Power Saving Control 102 Fail-Safe Function 102 Precautions for Xenon Headlamp Fault Diagnosis 103 Automatic Light Operation 103 CAN Communication System Description 103 Simplified Diagram 104 Wiring Diagram 106 Terminals and Reference Values 110 Engine Room Fuse Box Terminals and Reference Values 110

Light/Wiper Combination Switch Module (COLUMN SW ECU) Terminals and Reference Front Control Module (FECU) Power and Ground Circuit Check 67

Automatic Leveling Headlamp Control Module (ALS ECU) Power and Ground Circuit Check 69 Light/ Wiper Combination Switch Module (COLUMN SW ECU) Power and Ground Circuit Check 71 Trouble Diagnosis Symptom Chart 73 Checking the High Beam Both Sides Circuit 74 Checking the High Beam Single Side Circuit 77 Headlamp Assembly (Left Side) - Removal and Installation of High Beam Bulb 80

Removal 80

Installation 80 Headlamp Assembly (Right Side) - Removal and Installation of High Beam Bulb 80

Removal 80

Installation 80 Checking the Low Beam Both Sides Circuit 81

Checking the Low Beam Single Side Circuit 84

Xenon Headlamp Fault Diagnosis Precautions 53

Automatic Light Operation 53 CAN Communication System Description 53 Simplified Diagram 54 Wiring Diagram 56 Terminals and Reference Values 60 Engine Room Fuse Box Terminals and Reference Values 60 Light/Wiper Combination Switch Module (COLUMN SW ECU) Terminals and Reference Values 60 Basic Operation Procedure of Diagnostic Instrument 63 Automatic Leveling Headlamp Control Module (ALS ECU) Initialization Procedure 65 Fault Diagnosis 66 How to Perform Fault Diagnosis 66 Power Supply and Ground Circuit Inspection 67

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6

7

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5

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LT 8

12 9

Front Control Module (FECU) Power Supply

and Ground Circuit

Check 117

Active Steering Headlamp Control Module (AFS ECU) Power Supply and Ground Circuit Check 119 Light/Wiper Combination Switch Module (COLUMN SW ECU) Power Supply and Ground Circuit Check 121

Trouble Diagnosis Symptom Chart 123

Checking the High Beam Light Circuit on Both Sides 124 Checking the High Beam Light Circuit on One Side 127 Headlamp Assembly (Left Side) - Removal and Installation of the High Beam Light Bulb 130

Removal 130

Installation 130

Headlamp Assembly (Right Side) - Removal and Installation of the High Beam Light Bulb 130

Removal 130

Installation 130

Checking the Low Beam Light Circuit on Both Sides 131 Checking the Low Beam Light Circuit on One Side 134

Removal and Installation of Front Suspension Level Sensor 144

Removal 144

Installation 144

Removal and Installation of Rear Suspension Level Sensor 144

Removal 144

Installation 144

Focus Adjustment 145

Headlamp Assembly Bulb Configuration Diagram 147

Fault Code Troubleshooting 148

Fault Code Index Table 148

DTC-11 Front Level Sensor Open Circuit or Short Circuit to Ground 149

DTC-13 Rear Level Sensor Open Circuit or Short Circuit to Ground 153

DTC-15 Right Side Left and Right Actuator Coil Open Circuit 157 DTC-17 Right Side Left and Right Actuator Zero Position Sensor Fault 160

DTC-18 Speed Signal Open Circuit or Short Circuit to Ground (Value Remains at 0%) 163

DTC-19 Right left and right actuator current is too large 168 DTC-21 Steering wheel signal is open circuit or short circuit to ground 171 DTC-25 Right horizontal actuator coil Basic operating procedures of diagnostic instruments 113

Active steering headlight control module (AFS ECU) initialization procedure 115 Fault diagnosis 116 How to perform a fault diagnosis 116 Power supply and ground circuit inspection 117

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Front Control Module (FECU) Power Supply and

Ground Circuit Check 259

BCM Power Supply and Ground Circuit Check 261 Fault Diagnosis Symptom Chart 263 Checking the Front Fog Lamp Circuit on Both Sides 264

Checking the Front Fog Lamp Circuit on One Side 270 Removal and Installation of the Front Fog Lamp Bulb 272

Removal 272

Installation 272

Removal and Installation of the Front Fog Lamp Assembly 273

Removal 273

Installation 273

Focus Adjustment 274 Rear Fog Lamp 275

Component Locations 275

System Description 275

Light Monitoring Warning Sound 275

Exterior Light Power Saving Control 275 CAN Communication System Description 275

Simplified Diagram 276

Wiring Diagram 277

Front Control Module (FECU) Power Supply and Ground Circuit Check 239 BCM Power Supply and Ground Circuit Check 241 Trouble Diagnosis Symptom Chart 243 Checking the Auto Light Switch 244

Removal and Installation of the Auto Light Sensor 249

Removal 249

Installation 249 Removal and Installation of the Integrated Switch 249

Removal 249

Installation 249 Front Fog Lamp 250 Component Locations 250 System Description 250

Light Monitoring Warning Sound 250 Outdoor Light Power Saving Control 250 CAN Communication System Description 251

Simplified Diagram 252

Wiring Diagram 253

Terminals and Reference Values 255

Engine Room Fuse Box Terminals and Reference Values 255 BCM Terminals and Reference Values 255 Basic Operation Procedures of Diagnostic Instruments 256

Fault Diagnosis 258 How to Perform Fault Diagnosis 258 Power Supply and Ground Circuit Inspection 259

DTC-45 Left Horizontal Actuator Coil Open Circuit 212

DTC-47 Left Horizontal Actuator Zero

Position Sensor Malfunction 215 DTC-49 Left Horizontal

Actuator Excessive Current 218 Intermittent Fault

Diagnosis Procedure 221 Vehicle Completion Confirmation

Procedure 222 Automatic Lighting System 223 Component

Locations 223 System Description 223 Light Monitoring

Warning Sound 224 Exterior Light Power Saving Control

224 CAN Communication System Description 224 Simplified

Diagram 225 Wiring Diagram 226 Terminals and

Reference Values 233 Engine Room Fuse Box Terminals

and Reference Values 233 BCM Terminals and Reference

Values 233 Active Steering Headlamp Control Module (AFS

ECU) Terminals and Reference Values 234 Basic Operating

Procedures of Diagnostic Instruments 236 Fault Diagnosis

238 How to Perform Fault Diagnosis 238 Power and

Ground Circuit Check 239

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Removal and Installation of Tailgate Turn Signal Lights 329 Checking the Hazard Warning Light Circuits

330 Brake Lights 332

Component Locations 332

System Description 332 Simplified Diagram 333 Wiring Diagram 334

Troubleshooting Symptom Chart 336

Checking All Brake Light Circuits 337

Checking a Single Brake Light Circuit 340

Removal and Installation of Rear Brake Lights

342 Removal 342

Installation 342

Removal and Installation of Rear Tailgate Brake Lights 342 Removal

342 Installation 342

Removal and Installation of Third Brake Lights 343

Removal 343

Installation 343 Reversing Lights 344 Component Locations 344 System Description 344

Simplified Diagram 345 Wiring Diagram 346 Fault Diagnosis Symptom Chart 348 Checking the Reversing Light Circuit 349 Removal and Installation of the Reversing Light Bulb 352

Removal 352

Installation 352 Removal Troubleshooting 282

How to Perform a Troubleshooting 282

Power and Ground Circuit Check 283 Power and Ground Circuit Check of BCM 283

Troubleshooting Symptom Chart 285 Checking the Rear Fog Lamp Circuit 286 Removal and Installation of the Rear Fog Lamp Bulb 292

Removal 292

Installation 292

Removal and Installation of the Rear Fog Lamp Assembly 292

Removal 292

Installation 292 Turn Signal and Hazard Warning Lights 293 Component Locations 293 System Description 293 Simplified Diagram 294 Wiring Diagram 295 Terminals and Reference Values 298

Terminals and Reference Values of the Indoor Fuse

Box 298 Terminals and Reference Values

of the BCM 298 Lights/ Wiper combination

switch module (COLUMN SW ECU) terminals and

reference values 298 Diagnostic instrument basic

operation procedures 299 Fault

diagnosis 301 How to

perform a fault diagnosis 301 Power

supply and ground circuit

inspection 302 BCM power supply and

ground circuit inspection 302 Light/wiper

combination switch module (COLUMN SW ECU) power

5

6

7

10

2

4 3 1

8

9

12 LT

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Wiring Diagrams 386 Terminals and Reference Values 397 Terminals and Reference Values of Indoor Fuse Box 397 Terminals and Reference Values of Engine Room Fuse Box 397 Terminals and Reference Values of BCM 398 Terminals and Reference Values of Light/Wiper Combination Switch Module (COLUMN SW ECU) 398 Basic Operation Procedures of Diagnostic Instruments 399 Fault Diagnosis 401 How to Perform Fault Diagnosis 401 Power Supply and Ground Circuit Inspection 402

Front Control Module (FECU) Power

Supply and Ground Circuit Check 362 Light/Wiper

Combination Switch Module (COLUMN SW

ECU) Power Supply and Ground Circuit Check 364

Trouble Diagnosis Symptom Chart 366 Check the Left

Side Parking Light, Tail Light, Tailgate Tail

Light and License Plate Light Circuits 367 Check the

Right Side Parking Light, Tail Light, Tailgate

Tail Light and License Plate Light Circuits 372 Removal

and Installation of Parking Lights 378

Removal 408 Installation 408

Fail-safe function 354 CAN

communication system description 354 Simplified

diagram 355 Wiring

diagram 356 Terminals

and reference values 358 Engine

room fuse box terminals and reference values 358

Light/wiper combination switch module (COLUMN

SW ECU) terminals and reference values 358

Basic operating procedures of diagnostic

instruments 359 Fault

diagnosis 361 How to

perform fault diagnosis 361 Power supply and ground circuit inspection 362

Checking the Push Start Lamp (PUSH START) Circuit 409 Removal and Installation

of the Push Start Lamp (PUSH START) 413 Removal 413 Installation 413 Checking the Front Overhead Console Interior Lamp Circuit 414 Checking the Footrest Lamp

Circuit 419 Removal and Installation of the Driver's Side Footrest Lamp 425

Removal 425 Installation 425 Removal and Installation of the Front Passenger's Side Footrest Lamp 425 Removal 425 Installation 425

Removal and Installation of the Front Passenger's Side Underseat Footrest Lamp 425

Removal 425

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Integrated switch terminals and reference values 453

Troubleshooting 453 How

to perform a troubleshooting 453 Power and ground circuit inspection 454 Integrated switch power and ground circuit inspection 454 Troubleshooting symptom table 456 Checking the lighting control switch circuit 457

LIGHT/WIPER COMBINATION SWITCH MODULE (COLUMN SW ECU) REMOVAL AND INSTALLATION 470 REMOVAL 470

INSTALLATION 471 DTC SERVERS 472 DTC INDEX

TABLE 472 U1003 – CAN BUS FAILURE DUE TO COMMUNICATION OFF 473 INTERMITTENT TROUBLE DIAGNOSIS

PROCEDURE 477 VEHICLE COMPLETION

Light/wiper combination switch module (COLUMN

SW ECU) 459 Component locations 459 System description 459 Fault-safety function 459 Simplified

diagram 460 Wiring diagram 462 Light/wiper combination switch module (COLUMN SW ECU) terminals and reference values 464 Basic diagnostic instrument operation procedures 465 Fault

diagnosis 467 How to perform a fault diagnosis 467 Power supply and ground circuit inspection 468 Power supply and ground circuit inspection of light/wiper

combination switch module (COLUMN SW ECU) 468

Rear Vanity Mirror Lamp Circuit 426 Removal

and Installation of Front Sun Visor Vanity Mirror Lamp

the Left Front Door Courtesy Lamp Circuit 429

Checking the Right Front Door Courtesy Lamp

Circuit 431 Checking the Left Rear Door Courtesy

Lamp Circuit 433 Checking the Right Rear Door

Courtesy Lamp Circuit 435 Removal and Installation

of Door Courtesy Lamp Bulb 437

Removal 437

Installation 437 Checking

the Glove Box Lamp Circuit 438 Removal and

Installation of the Glove Box Lamp 440

Removal 440

the luggage compartment lighting circuit 441 Removal

and installation of the luggage compartment lighting

bulb 443 Removal 443

the rear reading light circuit 444 Removal and

installation of the rear reading light bulb 445

LT

12 10 9

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z Refer to the SRS section for details on removing the spiral cable and air bag module z Unless

otherwise instructed in this repair manual, do not use electrical testers on any circuits related to the Supplemental Restraint System (SRS)

General precautions for maintenance

operations zDo not work with wet hands zBefore

removing the headlight harness connector, turn off the light/wiper combination switch module zDo

not touch or apply oil or grease to the glass surface of the headlight bulb zWhen the headlight

has just been turned off, do not touch or apply pressure to the headlight bulb because it is still hot zWhen

the bulb burns out, wrap it in a plastic bag of appropriate thickness and discard it Do not break the bulb zAfter

removing the bulb from the headlight assembly, if the headlight assembly is left without the bulb for too long, the performance of the lens and reflector may be weakened (for example, it may be contaminated with dust, moisture, etc.) Therefore, when replacing the bulb, you must always have a new bulb ready for replacement at any time

zDo not use organic solvents (paint thinner or gasoline) to clean dust or remove old sealant from the headlamp assembly zDo not touch

the headlamp assembly and its wiring harness connector when the xenon headlamp is turned on or is already on

zIf the wiring harness connector of the xenon headlamp is not properly installed, high voltage leakage or abnormal power discharge may occur, causing

Melting of the headlight, harness connector or

lamp socket zDo not light the xenon headlight outside the vehicle lamp socket, as it may cause fire or damage to the eyes

zBefore disassembling or touching the xenon headlight, remove the negative terminal wire of the battery to disconnect the system.

When repairing, do not place the unexploded airbag surface directly on the table or the ground If the airbag accidentally explodes, the entire airbag

assembly will fly into the air, causing casualties If you carry an unexploded airbag, it is best to face the airbag fixing part towards you (the airbag surface is away from you), which can cause less damage in the event of an accidental explosion Otherwise, it may cause casualties After performing airbag system repairs, make sure the system is normal before reconnecting the line

The SRS harness can be identified by the yellow wire or connector

Warning:

To avoid failure or malfunction of the Supplemental Restraint System (SRS), which could result in personal injury or death in a collision, all repairs to

the system must be performed by an authorized dealer

Precautions

Supplementary Restraint System (SRS) "Air Bag" and "Seat Belt Pretensioner" Precautions Supplementary restraint

systems such as "Air Bag" and "Seat Belt Pretensioner" are intended to reduce serious injuries or dangers to the driver and front passenger caused by certain collisions If seat belts are not used in conjunction, greater injuries to the occupants may occur When repairing, the negative terminal of the battery must be removed and isolated to allow the system's capacitor to discharge for more than 15 seconds before diagnosing, testing, and disassembling the air bag system assembly Failure to do so may cause the air bag to explode, resulting in personal injury or death

The SRS and SB chapters of this maintenance manual contain the information needed to safely repair the system

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When performing troubleshooting, refer to the following:

z Refer to GI-13, “How to Perform Troubleshooting” in the GI section z Refer to GI-25,

“How to Perform Effective Diagnosis of Electrical Events” in the GI section

Wiring Diagrams and

Troubleshooting When reading the wiring diagrams,

refer to the following: z Refer to GI-15, “How to Read Wiring Diagrams” in the GI

section z Refer to PG-4, “Power Supply Configuration Circuit System” in the PG section for Power Distribution

6 4

7

8

2

5 3 1

9

12 LT 10

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Data connection connector

Light/wiper combination switch module

Light combination switch

(COLUMN SW ECM)

sua87m002

sua87m003

sua87m001 sua71s100

High beam

Headlight assembly (left side)

Low beam lights

Headlight height adjustment motor

Engine room fuse box

Front Control Module (FECU)

System

Description The operation control of the headlight system depends on the position of the light combination switch When the front control module (FECU)

in the engine room fuse box receives the input signal from the light/wiper combination switch module (COLUMN SW ECU), it will decide whether to turn

on the low beam or high beam according to the working state of the light combination switch This input signal is transmitted via the CAN1 BUS system

After the front control module (FECU) in the engine room fuse box receives the signal to turn on the headlight, it will control the low beam relay or high

beam relay inside the front control module (FECU) according to the driver's demand, so that the relay coil side is grounded At this time, the power will be

switched to the low beam or high beam through the relay contact, so that the low beam or high beam is lit This model is equipped with 55W halogen low

beam and 60W halogen high beam In addition, it is equipped with a headlight height adjustment switch Its main function is to allow the driver to manually

adjust the lighting height of the headlight beam appropriately when the number of passengers in the vehicle and the weight of the items carried change

The headlight height adjustment switch has five sections, namely 0, 1, 2, 3, and 4 The larger the number selected, the lower the lighting height of the headlight beam

Headlamp with manual leveling system

component locations

Low beam lights High beam

Headlight height adjustment motor

Headlight assembly (right side) 3

Headlight height adjustment switch

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Fail-safe function

When the ignition switch is turned from ON to ACC or OFF, and the light combination switch is not in the OFF position: (1)

If the driver's door is opened and then immediately closed, the light will come on for about 1 second and then go out (2) If the driver's

door is not opened, the light will stay on for about 3 minutes and then go out (3) If the driver's door is opened and

remains open, the light will stay on for about 3 minutes and then go out

(2) When the ignition switch is in the ON position, if the light/wiper combination switch module (COLUMN SW ECU) cannot control the headlights, parking lights,

taillights, tailgate taillights and license plate lights via the CAN1 BUS system, if the driver turns on the low beam switch, the request signal to turn on the lights will pass through the backup circuit, causing the low beams, parking lights, taillights, tailgate taillights and license plate lights to be illuminated

CAN COMMUNICATION

Light monitoring warning sound

When the ignition switch is in LOCK or ACC, if the light combination switch is not in the OFF position, if the door is opened, the light monitoring buzzer will sound; if the ignition switch is in the ON position, or the light combination switch is OFF, or the driver's door is closed again, the light monitoring buzzer will stop sounding the warning

(1) When the low beam switch in the light combination switch is faulty, if the low beam switch is turned on, the parking lights, tail lights, tailgate tail lights and license plate lights will not light up; however, when the low beam switch is turned on, the low beam lights, parking lights, tail lights, tailgate tail lights and license plate lights will all light up

Outdoor light power saving control

For automatic light functions, refer to LT-223, “System Description” of Automatic Light System

Automatic lighting operation

5

7 6

8

2

4 3 1

9

10

LT

12

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LT 9

12 10

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ÿÿÿ

ÿÿ

PG

ÿ

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6 5

10

LT

12 8

ÿ

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Terminals and reference values

Light/wiper combination switch module (COLUMN SW ECU) Terminals and reference values

Engine room fuse box terminals and reference values

CAN1 LO

Function or status Ignition switch ON, light combination switch OFF Ignition switch ON, low beam ON

ON Headlamp assembly (right side), low beam

ON Headlamp assembly (left side), low beam

ON Ignition switch OFF

(IG2) “FS-13” Light combination switch

Ignition switch ON or START

Ignition switch OFF

Battery voltage

Ignition switch ON

V

Signal Name Light combination switch

(Low beam backup circuit)

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6

7 5

8

3

4

2 1

9

10

12 LT

M -level

OBD DIAGNOSTIC

Basic operation procedures of the diagnostic

instrument 1 With the ignition switch in the OFF position, connect the diagnostic instrument to the data connection

3 Click DIAGNOSTIC

2 Turn

the ignition switch to the ON position

5 Click on "Appropriate level of vehicle"

4 Click "SU ML Series"

OSC/DMM

CEO MV SU MV

SUML

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Automatic fault code scanning

Manual Selection

Automatic VCM ID scanningAutomatic Vehicle Control Module Scan

FECU CSW

BCM+GW AWD

AC

6 Click Manual Selection.

8 Click "Read monitoring data" or "Execute actuation test".

7 Click "FECU" or "CSW".

Read monitoring data

Perform actuation test

Clear fault codes Read fault code data

Testing Services

sua87s007 mva71s106

mva80s041

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1 Confirm the symptom described by the customer 2

Understand the operating instructions and function descriptions Refer to LT-10, Headlamp with Manual Leveling System, “System Description” 3

4 After checking the malfunction symptoms, repair or replace the malfunctioning

component 5 Does the headlight function normally? If yes: Go to 6 If no: Go to 4 6 This

completes the inspection

LT

12 8

9

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Power and ground circuit inspection

Connector Terminals (Wire Color)

Battery voltage Battery voltage Battery voltage

- Battery voltageF-42

NG ØIf the fuse is burnt out, please troubleshoot the problem before replacing it with a new one.

Refer to PG-4, "POWER CONFIGURATION CIRCUIT SYSTEM"

2 Check the front control module (FECU) power circuit

Front Control Module (FECU) Power and Ground Circuit Check

Note:

OK or NG

OK Ø to 3.

1 Turn the ignition switch to the OFF position

For detailed power supply related wiring diagrams, please refer to PG-6, Power Supply Configuration Circuit System

NG ØRepair the wiring harness or connector.

2 Remove the front control module (FECU) in the engine room fuse box

"Wiring Diagram"

3 Check voltage value between front control module (FECU) and ground

1 Check the fuse

1 Check if the fuse is burnt out

OK or NG

OK Ø to 2.

ACC OFF

ON

5058

4F-42

65

mva87d009

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OK or NG

2 Remove the front control module (FECU) in the engine room fuse box

OK ØFront control module (FECU) power and ground circuits are good.

3 Check continuity between front control module (FECU) and ground

3 Check the front control module (FECU) ground circuit

0

F-42

67

5 4

mva87d010

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2 Remove the light/wiper combination switch module (COLUMN SW ECU) and connect

COLUMN SW ECU power supply and

Ground circuit inspection

Head to I-22

3 Check the light/wiper combination switch module (COLUMN SW ECU) and

1 Check if the fuse is burnt out

OK or NG

Voltage value between ground and earth.

2 Check the light/wiper combination switch module (COLUMN SW ECU) power circuit

Terminals

(+)

Battery power supply

- Battery voltage

Connector Terminals (Wire Color)

7.5A Ignition switch ON or START

Battery voltage Battery voltage Battery voltage

Location No Ampere Engine Room Fuse

Box FR-24 Indoor Fuse Box FS-23

(-)

Power Status

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LT 9

12 10

OK or NG

OK Ø Light/wiper combination switch module (COLUMN SW ECU)

Continuity between grounds

Source and ground circuits are good

Head to I-22

3 Check the light/wiper combination switch module (COLUMN SW ECU) and

2 Disconnect the COLUMN SW ECU

mva87d012

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Troubleshooting Symptom Chart

LT-32LT-28

LT-35LT-39

Reference pageLT-25

Diagnostic/Repair Procedure Check High Beam Circuit on Both Sides

Check High Beam Circuit on One Side Check Low Beam Circuit on Both Sides Check Low Beam Circuit on One Side Check Headlamp Height Adjustment Switch

Symptoms: The high beams on both sides cannot

light up The high beams on one side cannot

light up The low beams on both sides cannot light

up The low beams on one side cannot light

up The headlight height adjustment has no effect.

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ÿÿÿ*ÿÿ ÿÿÿÿÿ ÿÿÿÿÿÿ

On

ValueItem

Off

CSW

mva87s014 sua87s012

LT

12

10 9

1 Check the input signal of the light/wiper combination switch module (COLUMN SW ECU)

Check the circuits on both sides of the high

beam

No Ø to 3.

3 Check the high beam power circuit

1 Turn the ignition switch to the OFF position 2

Disconnect the headlight assembly (right side) connector F-17 and the headlight assembly (left side) connector F-20

Yes or no

1 Use the diagnostic tool to enter the "Read monitoring data" option of CSW 2

Turn on/off the high beam 3

Check whether the On/Off of the "Passing light switch" item has changed

2 Check the control signal of the high beam

F-45 3 Go

to step 2, "Check the high beam control signal" 4 Check the

voltage between the headlamp assembly (right/left) and ground

1 Use the diagnostic tool to enter the "Execute Actuation Test" option of FECU 2

Enter the "Headlight High Beam Output Signal" item

3 Switch the "Headlight High Beam Output Signal" to "ON" and "OFF" 4 Check if

there is any change in the high beam Yes

or No Yes

ØReplace the front control module (FECU) Refer to PG-28, "Removal and Installation of

the Front Control Module (FECU)"

Yes Ø Go to 2 No

Ø Replace the light/wiper combination switch module (COLUMN SW ECU) Refer to

LT-479, "Removal and Installation of Light/Wiper Combination Switch Module

(COLUMN SW ECU)"

Voltage value (approximate)

(-)(+)

Terminals

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39

40 39

40 38 A A

ampereF-17

10A

F-45

Location

10Aserial number

2 (L/R)

FR-16

2 (L/R)F-42

Engine room fuse box

yes

Engine room fuse box Headlight assembly connector terminal

(wire color) Connector terminal (wire color)

4 Check the power circuit between the engine room fuse box and the headlamp assembly (right/left)

1 Check the following fuses

2 Disconnect the fuses FR-16 and FR-17 in the engine room fuse box and the connector

OK or NG

Lamp assembly (right side) connector F-17 and headlamp assembly (left side) connector F-45

3 Check the connection between the engine room fuse box and the headlight assembly (right/left side)

Conductivity

Removal and Installation of the FECU"

OK Ø to 5.

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Head F-45.

2 Disconnect the headlight assembly (right side) connector F-17 and the headlight assembly (left side) connector

OK or NG

Check if the circuit is damaged or poorly connected and repair it as necessary

3 Check continuity between headlamp assembly (RH/LH) and ground

6 Check the high beam ground circuit

OK Ø Check the connection between the headlight assembly (right/left) and the high beam lamp socket.

10

LT 8

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Terminal (wire color)

sua87d014

2 Disassemble the non-functioning headlight assembly (right side) connector F-17 or headlight assembly

OK or NG

1 Check the high beam bulb

1 Check whether the non-functioning high beam bulb is in good condition

No ØReplace the high beam bulb.

2 Check the power circuit of the high beam

F-17, F-45Check the high beam circuit on one side

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38

40

40 39

38

39

A A

High beam ON

F-17F-45

ampere

2 (L/R)

Power Status

OK or NG

Removal and Installation of the FECU".

1 Check the following fuses.

2 Disconnect the fuse FR-16 or FR-17 in the engine room fuse box and

OK Ø to 4.

Headlamp assembly (right side) connector F-17 or headlamp assembly (left side)

LT 10

12 9sua87d015

Trang 31

3 Check the conductor between the inoperative headlamp assembly (right/left) and ground

(Left side) Connector F-45

Common nature.

Check if the circuit between the light bulb sockets is damaged or poorly connected

5 Check the high beam ground circuit

build

OK or NG

OK Ø Check the connector of the inoperative headlight assembly (right/left) and the remote

F-17

Connectors

Continuity(-)

(+)

Terminals

3 (B)Terminal (wire color)

yes

Grounding

sua87d016

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12

9 8

Headlight assembly (left side)

High beam bulb cover

Headlamp Assembly (right side) - Removal and Installation of High Beam Bulb Removal

1 Reach

behind the headlamp assembly (right side) from the engine compartment 2 Unscrew the

high beam bulb cover in a counterclockwise direction (as shown in Figure 2) 3

Disconnect the high beam wiring harness connector and then detach the bulb retaining

buckle 4 Remove the high beam bulb

Install

Install in the reverse order of

disassembly Note: After installing the bulb, make sure it is firmly installed in the lamp holder to ensure its

waterproof performance

1 Reach your hand from the engine compartment to the rear of the headlamp assembly

(left side) 2 Unscrew the high-beam bulb cover counterclockwise (as shown in Figure

1) 3 Disconnect the high-beam wiring harness connector and then detach the bulb

retaining buckle 4 Remove the high-beam bulb

figure 1Headlamp assembly (left side) - Removal and installation of high beam bulb

Trang 33

(-)(+)

ÿÿÿ*ÿÿ ÿÿÿÿÿ 2

ÿÿÿÿÿÿ

ÿÿÿÿ ÿÿ

On

ÿÿÿÿÿ

OffOff

Off

Item

OffItem

ÿÿÿÿÿÿÿ

Value

Before performing the diagnostic procedure, please confirm that the low beam bulb is normal and not burned out.

Removal and installation of COLUMN SW ECU"

4 Check whether there is any change in the low beam

3 Go to step 2 "Check the low beam control signal"

NG Ø to 4.

No ØReplace the light/wiper combination switch module (COLUMN SW

2 Enter the "Headlight Low Beam Output Signal" item

OK or NG

3 Check whether the On/Off of the "Headlight Switch" item has changed

is Ø to 2.

1 Use the diagnostic tool to enter the "Read Monitoring Data" option of CSW

Yes ØReplace the front control module (FECU) Refer to PG-28, "Front Control

1 Use the diagnostic tool to enter the "Perform Actuation Test" option of FECU

4 Check voltage between headlamp assembly (RH/LH) and ground

Notice:

ECU) Refer to LT-479, "Light/Wiper Combination Switch Mode"

3 Switch the "Headlight Low Beam Output Signal" to "ON" and "OFF"

2 Low beam control signal

Yes or no

2 Switch low beam on/off

3 Check the low beam power circuit

Trang 34

42

43 41

43

42 41

serial number

10AFR-18

Low beam ON

F-45

ampere Location

10A

F-45F-42

OK Ø to 5.

2 Disconnect the fuses FR-18 and FR-19 in the engine room fuse box and the connector

OK or NG

Lamp assembly (right side) connector F-17 and headlamp assembly (left side) connector F-45

OK or NG

3 Check the connection between the engine room fuse box and the headlight assembly (right/left side)

Conductivity

Trang 35

OK Ø Check the headlight assembly (left and right) wiring harness connector and the low beam lamp

6 Check the low beam ground circuit

Check whether the circuit between the sockets is damaged or poorly connected, and repair it as necessary.

Trang 36

(-)(+)

10

LT 9

12

(Left side) Connector F-45

3 Turn the low beam to the ON position

4 Check the electrical connection between the inoperative headlamp assembly (right/left) and ground

1 bulb low beam check

2 Check the low beam power circuit

OK or NG

1 Check whether the non-functioning low beam bulb is in good condition

Trang 37

F-42

F-17F-42

F-45

4

OFF

1 Check the following fuses.

2 Disconnect the fuse FR-18 or FR-19 in the engine room fuse box and

OK or NG

OK ØReplace the front control module (FECU) Refer to PG-28, "Front Control

Headlamp assembly (right side) connector F-17 or headlamp assembly (left side)

Removal and Installation of the FECU".

Connector F-45

OK Ø to 4.

3 Check the engine compartment fuse box and the inoperative headlight assembly (right side/

43

42yes

F-17

FR-19

F-45

Power Status

Low beam ONampere

42 (O/R)

4 (O/R)

sua87d025

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(Left side) Connector F-45.

Common nature.

OK Ø Check the connector of the inoperative headlight assembly (right/left) and the

3 Check the conductor between the inoperative headlamp assembly (right/left) and ground

5 Check the low beam ground circuit

Check if the circuit between the light bulb sockets is damaged or poorly connected

12 LT 10 9

OFF

Connectors

F-45

(-)Terminal (wire color)

Trang 39

image 3

3 Unscrew the low-beam bulb cover in a counterclockwise direction (as shown in Figure 4)

4 Disconnect the low-beam bulb harness connector and then separate the bulb fixing buckle 5

Remove the low-beam bulb

Figure 4Install

Unscrew the trim cover (see Figure

3) 2 Reach behind the headlamp assembly from the inside of the front wheel arch

Install in the reverse order of disassembly

Note:

Headlight assembly

Low beam bulb cover

In front of the vehicle

1

sua87m027

sua87m028

Trang 40

Engine room fuse box Headlamp height adjustment switch Connector

terminal (wire color) Connector terminal (wire color)

2 Check the power circuit between the engine room fuse box and the headlight height adjustment switch

2 Disconnect the headlight height adjustment switch connector I-25

2 Remove the fuse FR-19 and the headlight height adjustment in the engine room fuse box

3 Turn the ignition switch to the ON position

4 Check the voltage between the headlight height adjustment switch and ground

Complete switch connector I-25

9 8

Tiêu đề	Lighting system
Chuyên ngành	Automotive Engineering
Thể loại	Service Manual
Năm xuất bản	2010
Thành phố	Taipei

Định dạng
Số trang	481
Dung lượng	36,82 MB