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

1 INSPECT FOLD SEAT CONTROL ECU

1. 1
   Remove the fold seat control ECU with connectors still connected.
2. 2
   Measure the voltage according to the value(s) in the table below.

Standard voltage LH side

RH side

2 INSPECT BACK DOOR COURTESY SWITCH

1. 1
   Disconnect the connector from the back door courtesy switch.
2. 2
   Measure the resistance according to the value(s) in the table below.

Standard resistance

3 CHECK HARNESS AND CONNECTOR (FOLD SEAT CONTROL ECU - BACK DOOR COURTESY SWITCH)

1. 1
   Disconnect the connectors from the fold seat control ECU.
2. 2
   Measure the resistance according to the value(s) in the table below.

Standard resistance LH side

RH side

4 CHECK HARNESS AND CONNECTOR (BACK DOOR COURTESY SWITCH - BODY GROUND)

1. Measure the resistance according to the value(s) in the table below.

Standard resistance

REPLACE FOLD SEAT CONTROL ECU