Test Q: The Reversing Lamps Are Inoperative

PINPOINT TEST Q: THE REVERSING LAMPS ARE INOPERATIVE

Q1-Q2:

Q2-Q3:

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 298 (VT/OG). 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 140 (BK/PK).

Possible Causes
- Fuse
- Circuit 140 (BK/PK) open
- Circuit 298 (VT/OG) open
- Reversing lamp switch
- Digital TR sensor
- SJB