Toyota training ch07

Appendix B How to Use an Electrical Wiring Manual HOW TO USE THIS MANUAL This manual provides information on the electrical circuits installed on vehicles by dividing them into a circuit for each system The actual wiring of each system circuit is shown from the point where the power source is received from the battery as far as each ground point (All circuit diagrams are shown with the switches in the OFF position.) When troubleshooting any problem, first understand the operation of the circuit where the problem was detected (see System Circuit section), the power source supplying power to that circuit (see Power Source section), and the ground points (see Ground Point section) See the System Outline to understand the circuit operation When the circuit operation is understood, begin troubleshooting of the problem circuit to isolate the cause Use Relay Location and Electrical Wiring Routing sections to find each part, junction block and wiring harness connectors, wiring harness and wiring harness connectors and ground points of each system circuit Internal wiring for each junction block is also provided for better understanding of connection within a junction block Wiring related to each system is indicated in each system circuit by arrows (from , to ) When overall connections are required, see the Overall Electrical Wiring Diagram at the end of this manual COROLLA (EM0340U) Body Electrical Diagnosis and Repair Course T502 B-1 Appendix B HOW TO USE THIS MANUAL * The system shown here is an EXAMPLE ONLY It is different to the actual circuit shown in the SYSTEM CIRCUITS SECTION [A] Stop Light (BAT) [N] (IG) 15A STOP 7.5A GAUGE [B] IB IB L (S/D) W–R R–L 3C [G] [C] S6 Stop Light SW 15 3C 14 IE1 R–L 11 (Shielded) Stop W–B [J] [K] H17 High Mounted Stop Light W–B W–B R6 Rear Combination Light LH R7 Rear Combination Light RH Stop G–B [I] G–R G–R W–B W–B BV1 L4 Light Failure Sensor G–R W–B [F] G–R [H] BV1 13 Y–G L G–W (S/D) G–W BO 50 B-2 [E] [L] BL [M] COROLLA (EM0340U) TOYOTA Collision Repair and Refinish C7 Combination Meter 15 IE1 Rear Lights L (S/D) R G–W Skid Control ECU with Actuator [D] (W/G) Appendix B Body Electrical Diagnosis and Repair Course T502 B-3 Appendix B B-4 TOYOTA Collision Repair and Refinish Appendix B Body Electrical Diagnosis and Repair Course T502 B-5 Appendix B B-6 TOYOTA Collision Repair and Refinish Appendix B Body Electrical Diagnosis and Repair Course T502 B-7 Appendix B B-8 TOYOTA Collision Repair and Refinish Appendix B Body Electrical Diagnosis and Repair Course T502 B-9 ... Repair Course T502 B-3 Appendix B B-4 TOYOTA Collision Repair and Refinish Appendix B Body Electrical Diagnosis and Repair Course T502 B-5 Appendix B B-6 TOYOTA Collision Repair and Refinish Appendix... Sensor G–R W–B [F] G–R [H] BV1 13 Y–G L G–W (S/D) G–W BO 50 B-2 [E] [L] BL [M] COROLLA (EM0340U) TOYOTA Collision Repair and Refinish C7 Combination Meter 15 IE1 Rear Lights L (S/D) R G–W Skid... Repair and Refinish Appendix B Body Electrical Diagnosis and Repair Course T502 B-7 Appendix B B-8 TOYOTA Collision Repair and Refinish Appendix B Body Electrical Diagnosis and Repair Course T502