Back Door Courtesy Switch Circuit

LIGHTING (INT): LIGHTING SYSTEM: Back Door Courtesy Switch Circuit
- Back Door Courtesy Switch Circuit

DESCRIPTION

The main body ECU receives a back door open or closed signal from the back door courtesy switch.

WIRING DIAGRAM





INSPECTION PROCEDURE

PROCEDURE

1. READ VALUE USING TECHSTREAM (BACK DOOR COURTESY SWITCH)

(a) Using the Techstream, read the Data List Interior Lighting System.

Main Body





OK:

The display is as specified in the normal condition column.

NG -- INSPECT BACK DOOR LOCK ASSEMBLY (BACK DOOR COURTESY SWITCH)

OK -- PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE Interior Lighting System

2. INSPECT BACK DOOR LOCK ASSEMBLY (BACK DOOR COURTESY SWITCH)

(a) Remove the back door lock assembly Removal.





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

Standard Resistance:





Text in Illustration





NG -- REPLACE BACK DOOR LOCK ASSEMBLY Removal
OK -- Continue to next step.

3. CHECK HARNESS AND CONNECTOR (MAIN BODY ECU - BACK DOOR LOCK ASSEMBLY AND BODY GROUND)

(a) Disconnect the C56 main body ECU connector.

(b) Disconnect the L3 back door lock 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 (MULTIPLEX NETWORK BODY ECU) Removal