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
Trang 15 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 System7 Steering Wheel
BL Body, Door Locks and Security SystemsFSU front suspension
8 Protection system
ACS Cruise Control System
WT Wheels and Tires
RF Skylight
LT Lighting SystemDI Driver Information SystemEI Interior and Exterior
BCS Body Control SystemTF Transmission Gearbox
PB parking brake system3 Gearbox
BRC Brake Control System4 Drive lines/axles
SE Seat
EM engine mechanism
PR Drive Shaft
ATC Automatic Air Conditioning System
AV entertainment, telephone communications and satellite navigation
PG Power, Ground and Circuit Components10 Air conditioning
© 2010 Luxgen Automotive Co., Ltd All rights
CO Engine Cooling System
FAX front axle
SB Seat BeltFL Fuel System
IP Dashboard
WW Wipers, washers, horns and power sockets
LAN LAN system
1011128
Trang 2Removal and Installation 31
Removal 38
Installation 38
Checking the Headlamp Height Adjustment Switch 39 Removal and Installation of the Headlamp Height Adjustment Switch 43
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
10
Trang 3Installation 86
Checking the Headlamp Actuator Drive Circuit 87
Removal and Installation of the Automatic Leveling Headlamp Control Module (ALS ECU) 92 Removal 92
Headlamp Assembly Bulb Arrangement Diagram 97
HID Headlamp with Active Steering Headlamp System (AFS) 98 Component Locations 98
System Description 98 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
Self-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
Trang 4Front 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 and Installation of Front Suspension Level Sensor 144
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
Trang 5Front 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
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 259DTC-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
Trang 6Removal 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
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
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
12LT
Trang 7Wiring 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 378 Installation 378 Removal and Installation of Tail Lights 379
Removal 379 Installation 379 Removal and Installation of Tail Lights 380
Removal 380 Installation 380 Removal and Installation of License Plate Lights 380
Removal 380
Installation 380 Interior Lights 381 Component
Locations 381 System
Description 382 Schematic
Front Control Module (FECU) Power
and Ground Circuit Check 402 BCM Power and Ground Circuit Check 404 Trouble Diagnosis Symptom Chart 406 Checking the Front Overhead Console Reading Light Circuit 407 Front Overhead Console Removal and Installation 408
Removal 408 Installation 408Fail-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
Trang 8Integrated 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) 468Rear Vanity Mirror Lamp Circuit 426 Removal
and Installation of Front Sun Visor Vanity Mirror Lamp Bulb 427 Removal 427 Installation 427 Removal and Installation of Front Sun Visor Assembly 428
Removal 428
Installation 428 Removal and Installation of Rear Vanity Mirror Assembly 428
Removal 428
Installation 428 Checking 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
Installation 440 Checking the luggage compartment lighting circuit 441 Removal
and installation of the luggage compartment lighting bulb 443 Removal 443 Installation 443 Checking the rear reading light circuit 444 Removal and
installation of the rear reading light bulb 445 Removal 445 Installation 445 Removal
12109
Trang 9z 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.
Trang 10When 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.
12LT10
Trang 11Data connection connector
Light/wiper combination switch module
Light combination switch
(COLUMN SW ECM)
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 lightsHigh beam
Headlight height adjustment motor
Headlight assembly (right side)3
Headlight height adjustment switch
Trang 12Fail-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
12
Trang 13Simple diagram
ÿ ÿ
CAN1ÿ
ÿÿ/ÿÿÿ(COLUMN SW ECU)
ÿÿ ÿÿÿ (ÿ)ÿPE
ÿ
Trang 14ÿ ÿ 1ECU
1210
Trang 15ÿ
Trang 16ÿ
Trang 17Terminals and reference values
Light/wiper combination switch module (COLUMN SW ECU) Terminals and reference valuesEngine room fuse box terminals and reference values
66 G/R
Battery voltage"FR-17"
Headlamp assembly (left side), high beam ON Headlamp assembly (right side), high beam 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
Signal Name Light combination switch
Battery voltage
(Low beam backup circuit)
Battery voltage"FR-16"
Ignition switch ON, light combination switch OFF Ignition switch ON, low beam ON
Reference value (approximate)
35 R/W Power supply (battery) "FR-24"
50
Trang 18L level (AT)L level (MT)
Read download data
sua71s102mva71s101sua71s100Data connection connector
M -level
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".
CEO MVSUMV
SUML
Trang 19Automatic fault code scanning
Manual Selection
Automatic VCM ID scanning
Automatic Vehicle Control Module Scan
6 Click Manual Selection.
8 Click "Read monitoring data" or "Execute actuation test".7 Click "FECU" or "CSW".
Read monitoring data
Perform actuation testClear fault codesRead fault code data
Testing Services
mva80s041
Trang 201 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.
9
Trang 21Power and ground circuit inspection
Battery power supply
Ignition switch ON
Connector Terminals (Wire Color)
Battery voltage Battery voltage Battery voltage- Battery voltageF-42
GroundingNo Engine room fuse box FR-24 Indoor
fuse box FS-13
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
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.
mva87d009
Trang 22OK 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.
1 Turn the ignition switch to the OFF position.
3 Check continuity between front control module (FECU) and ground.
3 Check the front control module (FECU) ground circuit
NG ØRepair the wiring harness or connector.
mva87d010
Trang 23NG ØRepair the wiring harness or connector.
Ground circuit inspection
NG ØIf the fuse is burnt out, please troubleshoot the problem before replacing it with a new one.
1 Check the fuse
Voltage value between ground and earth.
2 Check the light/wiper combination switch module (COLUMN SW ECU) power circuit
Battery power supply
- Battery voltage
Connector Terminals (Wire Color)
7.5A Ignition switch ON or START
Battery voltage Battery voltage Battery voltage6 (R/G)
Trang 24OK 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) and1 Turn the ignition switch to the OFF position
2 Disconnect the COLUMN SW ECU.
NG ØRepair the wiring harness or connector.
mva87d012
Trang 25Troubleshooting Symptom Chart
LT-35LT-39Reference page
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 SwitchSymptoms: 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.
Trang 261 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
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
Trang 2710Aserial number
2 (L/R)
2 (L/R)F-42
Engine room fuse box
yesEngine room fuse box Headlight assembly connector terminal
(wire color) Connector terminal (wire color)
Power Status40 (L/R)
High beam ON39 (L/R)
4 Check the power circuit between the engine room fuse box and the headlamp assembly (right/left)
1 Check the following fuses.
1 Turn the ignition switch to the OFF position.
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.
NG ØRepair the wiring harness or connector.
NG ØIf the fuse is burnt out, please troubleshoot the problem before replacing it with a new one.
Trang 283 Check continuity between headlamp assembly (RH/LH) and ground.
6 Check the high beam ground circuit
NG ØRepair the wiring harness or connector.
OK Ø Check the connection between the headlight assembly (right/left) and the high beam lamp socket.
12OFF
Trang 29Voltage value (approximate)
Terminal (wire color)
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
1 Turn the ignition switch to the OFF position.
F-17, F-45Check the high beam circuit on one side
Trang 30High beam ONF-17
2 (L/R)Engine room fuse box Headlight assembly connector terminal (wire color) Connector terminal (wire color)
2 (L/R)40 (L/R)
serial number
Power Status
4 Check the fuse
OK or NG
Removal and Installation of the FECU".
3 Check the power circuit between the engine room fuse box and the headlamp assembly (right/left)
NG ØIf the fuse is burnt out, please troubleshoot the problem before replacing it with a new one.
1 Check the following fuses.
Refer to PG-4, "POWER CONFIGURATION CIRCUIT SYSTEM"
1 Turn the ignition switch to the OFF position.
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)
NG ØRepair the wiring harness or connector.
129sua87d015
Trang 312 Disassemble the non-functioning headlight assembly (right side) connector F-17 or headlight assembly
5 Check the high beam ground circuit
build.OK or NG
NG ØRepair the wiring harness or connector.
OK Ø Check the connector of the inoperative headlight assembly (right/left) and the remote
3 (B)Terminal (wire color)
sua87d016
Trang 32Headlight 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 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
figure 2
Headlight assembly (right side)High beam bulb cover
Trang 33Terminal (wire color)
Voltage value (approximate)
4 (O/R)
Battery voltage4 (O/R)
Check the circuits on both sides of the low beam
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.
1 Turn the ignition switch to the OFF position.
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
2 Disconnect the headlight assembly (right side) connector F-17 and the headlight assembly (left side) connector
Yes or no
2 Switch low beam on/off.
Removal and Installation of the FECU".
3 Check the low beam power circuit
Trang 34serial number
42 (O/R)
Engine room fuse box
4 (O/R)4 (O/R)
Power StatusF-17
Low beam ONF-45
10AEngine 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)
OK Ø to 5.
NG ØRepair the wiring harness or connector.
1 Turn the ignition switch to the OFF position.
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.
Removal and Installation of the FECU".
OK or NG
3 Check the connection between the engine room fuse box and the headlight assembly (right/left side).
NG ØIf the fuse is burnt out, please troubleshoot the problem before replacing it with a new one.
5 Check the fuse
1 Check the following fuses.Conductivity.
Trang 35OK Ø Check the headlight assembly (left and right) wiring harness connector and the low beam lamp
6 Check the low beam ground circuit
2 Disconnect the headlight assembly (right side) connector F-17 and the headlight assembly (left side) connector1 Turn the ignition switch to the OFF position.
Check whether the circuit between the sockets is damaged or poorly connected, and repair it as necessary.
NG ØRepair the wiring harness or connector.
3 (B)3 (B)
sua87d016
Trang 36Terminal (wire color)
Voltage value (approximate)
4 (O/R)4 (O/R)
Grounding Battery voltage
sua87d024Check the low beam headlight circuit on one side
(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
1 Turn the ignition switch to the OFF position.
OK or NG
1 Check whether the non-functioning low beam bulb is in good condition.
2 Disassemble the non-functioning headlight assembly (right side) connector F-17 or headlight assembly
Pressure value.
OK Ø to 5.
Yes or no
NG Ø to 3.is Ø to 2.
No ØReplace the low beam bulb.
Trang 371 Check the following fuses.
3 Check the power circuit between the engine room fuse box and the headlamp assembly (right/left)
1 Turn the ignition switch to the OFF position.
2 Disconnect the fuse FR-18 or FR-19 in the engine room fuse box and
OK or NGOK 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.
NG ØIf the fuse is burnt out, please troubleshoot the problem before replacing it with a new one.
OK Ø to 4.
NG ØRepair the wiring harness or connector.
3 Check the engine compartment fuse box and the inoperative headlight assembly (right side/
Refer to PG-4, "POWER CONFIGURATION CIRCUIT SYSTEM"
Engine room fuse box
42 (O/R)
4 (O/R)
sua87d025
Trang 38(Left side) Connector F-45.
2 Disassemble the non-functioning headlight assembly (right side) connector F-17 or headlight assembly
Common nature.
OK Ø Check the connector of the inoperative headlight assembly (right/left) and the
1 Turn the ignition switch to the OFF position.
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.
NG ØRepair the wiring harness or connector.
build.OK or NG
(-)Terminal (wire color)
Trang 39image 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 assemblyLow beam bulb coverIn front of the vehicle
sua87m028
Trang 40Engine room fuse box Headlamp height adjustment switch Connector terminal (wire color) Connector terminal (wire color)
Terminal (wire color)
Continuity2 (R/W)
yesVoltage value (approximate)
Battery voltage(+)
2 Check the power circuit between the engine room fuse box and the headlight height adjustment switch
1 Turn the ignition switch to the OFF position.
NG ØRepair the wiring harness or connector.
1 Turn the ignition switch to the OFF position.
2 Disconnect the headlight height adjustment switch connector I-25.
3 Check the fuse
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.
1 Check the following fuses.
Complete switch connector I-25.
12Check the headlight height adjustment switch
42