Test Q: The Reversing Lamps Are Inoperative

PINPOINT TEST Q: THE REVERSING LAMPS ARE INOPERATIVE

Q1-Q2:

Q2-Q3:

Q4-Q5:

Normal Operation
The smart junction box (SJB) provides voltage to the digital transmission range (TR) sensor, or the reversing lamp switch, through circuit CBP20 (YE/VT). When the transmission is placed in REVERSE, the digital TR sensor, or the reversing lamp switch, routes the voltage to the reversing lamps through circuit CET41 (BN/YE).

Possible Causes
- Fuse
- Circuit CBP20 (YE/VT) open
- Circuit CET41 (BN/YE) open
- Digital TR sensor
- Reversing lamp switch
- SJB