Test Q: The Reversing Lamps Are Inoperative

PINPOINT TEST Q: THE REVERSING LAMPS ARE INOPERATIVE

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).

This pinpoint test is intended to diagnose the following:
- Fuse
- Wiring, terminals or connectors
- Digital TR sensor (automatic transmission)
- Reversing lamp switch (manual transmission)
- SJB

Q1-Q2:

Q2-Q3:

Q4-Q5: