Test Z: The Reversing Lamps Are On Continuously

PINPOINT TEST Z: THE REVERSING LAMPS ARE ON CONTINUOUSLY

Z1:

Z2-Z6:

Normal Operation
When the transmission control module (TCM) detects the transmission in REVERSE, a signal is sent to the smart junction box (SJB) over the communication network. The SJB then provides voltage to the reversing lamps, the parking aid module, and the auto-dimming mirror through circuit 1367 (WH/YE).

Possible Causes
- Circuit 1367 (WH/YE) short to voltage
- Auto-dimming interior mirror
- Parking aid module
- SJB
- TCM