Test T
PINPOINT TEST T: THE REVERSING LAMPS ARE INOPERATIVETest T1-T2:
Test T2-T4:
Test T4-T6:
Test T6-T8:
Test T9:
Normal Operation
Switched battery voltage is normally provided to the digital transmission range (TR) sensor through circuit 295 (LB/PK). When the transmission is placed in REVERSE, the digital TR sensor routes power to circuit 1043 (DG/YE) which provides power to the reversing lamp relay coil. When the reversing lamp relay is energized, power is routed from the central junction box (CJB) to circuit 140 (BK/PK). Ground is provided to the reversing lamp relay by the CJB and each lamp through circuit 57 (BK).
Possible Causes
- circuit 140 (BK/PK) open
- circuit 295 (LB/PK) open
- circuit 1043 (DG/YE) open
- reversing lamp relay
- CJB
- digital TR sensor