Backup Lamps
The TURN SIG fuse in the console fuse block supplies battery positive voltage to park neutral position switch. When the gear selector lever is in the REVERSE position, power is supplied to both of the backup lamps. The backup lamps are grounded at G401 and G402.
Do you know what DTC'S - diagnostic trouble codes are ?
DTC B2552
The body control module (BCM) controls the backup lamp relay. The BCM grounds the backup lamp relay control circuit energizing the backup lamp relay. The BCM connects directly to the center console fuse block with no external wiring between them.
DTC B2553
The body control module (BCM) controls the backup lamp relay. The BCM grounds the backup lamps relay control circuit energizing the backup lamp relay. The BCM connects directly to the center console fuse block with no external wiring between them.
Backup Lamps Always On
Do the backup lamps turn on in REVERSE and turn off in PARK?
Go to Testing for Intermittent Conditions and Poor Connections in Wiring Systems
Go to Step 3
3
Remove the backup lamps relay.
Do the backup lamps turn OFF?
Go to Step 5
Go to Step 4
4
Repair a short in the backup lamps relay switched battery positive voltage supply circuit. Refer to Circuit Testing and Wiring Repairs in Wiring Systems.
Did you complete the repair?
Check the back-up lamps relay #45 in the center console fuse/relay box .
Fuse Block - Center Console
Inside of console, behind the right console access panel
Check
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