Back-Up Light Circuit

LIGHTING: LIGHTING SYSTEM: Back-up Light Circuit
- Back-up Light Circuit

DESCRIPTION

When the PNP switch R position signal is received from the luggage room junction block ECU, the back-up light illuminates.

WIRING DIAGRAM





INSEPCTION PROCEDURE

PROCEDURE

1. PERFORM ACTIVE TEST USING TECHSTREAM (BACK-UP LIGHT)

(a) Select the ACTIVE TEST, use the Techstream to generate a control command, and then check that the back-up light illuminates.

Body No. 4





OK:

Back-up light illuminates.

OK -- PROCEED TO NEXT CIRCUIT INSPECTION SHOWN IN PROBLEM SYMPTOMS TABLE
NG -- Continue to next step.

2. INSPECT BACK-UP LIGHT ASSEMBLY





(a) Remove the back-up light.

(b) Apply battery voltage to the back-up light connector and check that the back-up light illuminates.

OK:





NG -- REPLACE BACK-UP LIGHT ASSEMBLY
OK -- Continue to next step.

3. CHECK WIRE HARNESS (ECU - BATTERY AND BODY GROUND)





(a) Disconnect the 6L junction block connector.

(b) Measure the voltage of the wire harness side connector.

Standard voltage:





NG -- REPAIR OR REPLACE HARNESS AND CONNECTOR
OK -- Continue to next step.

4. CHECK WIRE HARNESS (LIGHT - ECU AND BODY GROUND)





(a) Disconnect the B8*1 or B9*2 light connector.

HINT
*1: LH

*2: RH

(b) Disconnect the L22 ECU connector.

(c) Measure the resistance of the wire harness side connectors.

Standard resistance:

LH
RH










NG -- REPAIR OR REPLACE HARNESS AND CONNECTOR

OK -- PROCEED TO NEXT CIRCUIT INSPECTION SHOWN IN PROBLEM SYMPTOMS TABLE