LS 460 AWD V8-4.6L (1UR-FSE) (2009)
Backup Lamp: Testing and Inspection
LIGHTING: LIGHTING SYSTEM: Back-up Light does not Illuminate
Back-up Light does not Illuminate
WIRING DIAGRAM
INSPECTION PROCEDURE
NOTE:
First perform the communication function inspections in HOW TO PROCEED WITH TROUBLESHOOTING to confirm that there are no
CAN communication malfunctions before troubleshooting this symptom. See: Testing and Inspection/Initial Inspection and Diagnostic
Overview/How To Proceed With Troubleshooting
PROCEDURE
1. PERFORM ACTIVE TEST USING TECHSTREAM (BACK-UP LIGHT) See: Testing and Inspection/Scan Tool Testing and Procedures
(a) Using the Techstream, perform the Active Test. See: Testing and Inspection/Scan Tool Testing and Procedures
Body No.4
OK:
Back-up light condition is switched by Active Test.
NG -- CHECK REAR JUNCTION BLOCK ECU (BCK1 VOLTAGE)
OK -- GO TO AUTOMATIC TRANSMISSION SYSTEM
2. CHECK REAR JUNCTION BLOCK ECU (BCK1 VOLTAGE)