Door Courtesy Switch Circuit

LIGHTING (EXT): LIGHTING SYSTEM: Door Courtesy Switch Circuit

Door Courtesy Switch Circuit

DESCRIPTION

The main body ECU receives a door open/closed signal from each door courtesy light switch.

WIRING DIAGRAM





INSPECTION PROCEDURE

PROCEDURE

1. READ VALUE USING TECHSTREAM (DOOR COURTESY LIGHT SWITCH)
(a) Operate the Techstream according to the display and select "Data List".

Main Body





OK:
Door courtesy light switch on/off
NG -- CHECK DOOR COURTESY LIGHT SWITCH
OK -- PROCEED TO NEXT CIRCUIT INSPECTION SHOWN IN PROBLEM SYMPTOMS TABLE
2. CHECK DOOR COURTESY LIGHT SWITCH

Result





E -- INSPECT BACK DOOR LOCK
D -- INSPECT REAR DOOR COURTESY LIGHT SWITCH RH
C -- INSPECT REAR DOOR COURTESY LIGHT SWITCH LH
B -- INSPECT FRONT DOOR COURTESY LIGHT SWITCH RH
A -- Continue to next step.
3. INSPECT FRONT DOOR COURTESY LIGHT SWITCH LH





(a) Remove the front door courtesy light switch LH Removal.
(b) Measure the resistance according to the value(s) in the table below.
Standard Resistance:






NG -- REPLACE FRONT DOOR COURTESY LIGHT SWITCH LH
OK -- Continue to next step.
4. CHECK HARNESS AND CONNECTOR (FRONT DOOR COURTESY LIGHT SWITCH LH - MAIN BODY ECU)





(a) Disconnect the K2 switch connector.
(b) Disconnect the E1 ECU connector.
(c) Measure the resistance according to the value(s) in the table below.
Standard Resistance:






NG -- REPAIR OR REPLACE HARNESS OR CONNECTOR
OK -- REPLACE MAIN BODY ECU
5. INSPECT FRONT DOOR COURTESY LIGHT SWITCH RH





(a) Remove the front door courtesy light switch RH Removal.
(b) Measure the resistance according to the value(s) in the table below.
Standard Resistance:






NG -- REPLACE FRONT DOOR COURTESY LIGHT SWITCH RH
OK -- Continue to next step.
6. CHECK HARNESS AND CONNECTOR (FRONT DOOR COURTESY LIGHT SWITCH RH - MAIN BODY ECU)





(a) Disconnect the L1 switch connector.
(b) Disconnect the E2 ECU connector.
(c) Measure the resistance according to the value(s) in the table below.
Standard Resistance:






NG -- REPAIR OR REPLACE HARNESS OR CONNECTOR
OK -- REPLACE MAIN BODY ECU
7. INSPECT REAR DOOR COURTESY LIGHT SWITCH LH





(a) Remove the rear door courtesy light switch LH Removal.
(b) Measure the resistance according to the value(s) in the table below.
Standard Resistance:






NG -- REPLACE REAR DOOR COURTESY LIGHT SWITCH LH
OK -- Continue to next step.
8. CHECK HARNESS AND CONNECTOR (REAR DOOR COURTESY LIGHT SWITCH LH - MAIN BODY ECU)





(a) Disconnect the K3 switch connector.
(b) Disconnect the 2C ECU connector.
(c) Measure the resistance according to the value(s) in the table below.
Standard Resistance:






NG -- REPAIR OR REPLACE HARNESS OR CONNECTOR
OK -- REPLACE MAIN BODY ECU
9. INSPECT REAR DOOR COURTESY LIGHT SWITCH RH





(a) Remove the rear door courtesy light switch RH Removal.
(b) Measure the resistance according to the value(s) in the table below.
Standard Resistance:






NG -- REPLACE REAR DOOR COURTESY LIGHT SWITCH RH
OK -- Continue to next step.
10. CHECK HARNESS AND CONNECTOR (REAR DOOR COURTESY LIGHT SWITCH RH - MAIN BODY ECU)





(a) Disconnect the L2 switch connector.
(b) Disconnect the E2 ECU connector.
(c) Measure the resistance according to the value(s) in the table below.
Standard Resistance:






NG -- REPAIR OR REPLACE HARNESS OR CONNECTOR
OK -- REPLACE MAIN BODY ECU
11. INSPECT BACK DOOR LOCK





(a) Remove the back door lock Disassembly.
(b) Measure the resistance according to the value(s) in the table below.
Standard Resistance:






NG -- REPLACE BACK DOOR LOCK
OK -- Continue to next step.
12. CHECK HARNESS AND CONNECTOR (BACK DOOR LOCK - MAIN BODY ECU AND BODY GROUND)





(a) Disconnect the S1 door lock connector.
(b) Disconnect the E2 ECU connector.
(c) Measure the resistance according to the value(s) in the table below.
Standard Resistance:






NG -- REPAIR OR REPLACE HARNESS OR CONNECTOR
OK -- REPLACE MAIN BODY ECU