DESCRIPTION
The main body ECU receives a No. 2 room light information signal from the back door courtesy light switch, and illuminates the No. 2 room light.
WIRING DIAGRAM
INSPECTION PROCEDURE
Tech Tips
Inspect the fuses and bulbs for circuits related to this system before performing the following inspection procedure.
PROCEDURE
READ VALUE USING INTELLIGENT TESTER (BACK DOOR COURTESY SWITCH)
Connect the intelligent tester to the DLC3.
Turn the ignition switch to ON.
Turn the intelligent tester on.
Enter the following menus: Body / Main Body / Data List / Back Door Courtesy Switch.
Use the Data List to check if the back door courtesy light switch is operating properly.
Tester Display | Measurement Item/Range | Normal Condition | Diagnostic Note |
---|---|---|---|
Back Door Courtesy Switch | Back door courtesy light switch / ON or OFF | ON: Back door courtesy light switch on OFF: Back door courtesy light switch off |
- |
OK |
---|
Tester display changes according to opening and closing of back door. |
NG |
INSPECT BACK DOOR LOCK ASSEMBLY (BACK DOOR COURTESY LIGHT SWITCH) Click here |
OK |
PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE
INSPECT BACK DOOR LOCK ASSEMBLY (BACK DOOR COURTESY LIGHT SWITCH)
Remove the back door lock assembly (back door courtesy light switch) Click here.
Measure the resistance according to the value(s) in the table below.
Standard Resistance | ||||||||
---|---|---|---|---|---|---|---|---|
|
NG |
REPLACE BACK DOOR LOCK ASSEMBLY (BACK DOOR COURTESY LIGHT SWITCH) Click here |
OK |
CHECK HARNESS AND CONNECTOR (BACK DOOR LOCK ASSEMBLY - MAIN BODY ECU AND BODY GROUND)
*1 | Front view of wire harness connector (to Back Door Lock Assembly) |
*2 | Front view of wire harness connector (to Main Body ECU) |
Disconnect the S8 back door lock assembly (back door courtesy light switch) connector.
Disconnect the DA main body ECU connector.
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 (INSTRUMENT PANEL JUNCTION BLOCK ASSEMBLY)