Back Door Courtesy Switch Circuit

SEAT: REAR NO. 2 SEAT ASSEMBLY (w/ Power Stowing Function): Back Door Courtesy Switch Circuit

Back Door Courtesy Switch Circuit

DESCRIPTION

The fold seat control ECU receives signals from the back door courtesy switch and detects the state of the back door (open/close). If the ECU does not detect that the back door is open, the seat stowing and return functions are not available.

WIRING DIAGRAM





INSPECTION PROCEDURE

PROCEDURE

1. INSPECT FOLD SEAT CONTROL ECU





(a) Remove the fold seat control ECU with connectors still connected.
(b) Measure the voltage according to the value(s) in the table below.
Standard voltage:

LH side





RH side





OK -- PROCEED TO NEXT CIRCUIT INSPECTION SHOWN IN PROBLEM SYMPTOMS TABLE
NG -- Continue to next step.
2. INSPECT BACK DOOR COURTESY SWITCH





(a) Disconnect the connector from the back door courtesy switch.
(b) Measure the resistance according to the value(s) in the table below.
Standard resistance:






NG -- REPLACE BACK DOOR COURTESY SWITCH
OK -- Continue to next step.
3. CHECK HARNESS AND CONNECTOR (FOLD SEAT CONTROL ECU - BACK DOOR COURTESY SWITCH)





(a) Disconnect the connectors from the fold seat control ECU.
(b) Measure the resistance according to the value(s) in the table below.
Standard resistance:

LH side





RH side





NG -- REPAIR OR REPLACE HARNESS OR CONNECTOR
OK -- Continue to next step.
4. CHECK HARNESS AND CONNECTOR (BACK DOOR COURTESY SWITCH - BODY GROUND)





(a) Measure the resistance according to the value(s) in the table below.
Standard resistance:






NG -- REPAIR OR REPLACE HARNESS OR CONNECTOR
OK -- REPLACE FOLD SEAT CONTROL ECU