Circuit/System Verification

WARNING: This page is about a different car, the 2018 Cadillac XTS. However, it is still accessible from the selected car via links, so may be relevant.

Ignition ON.
Verify that DTC B2545 is not set.
- If the DTC is set
  Refer to DTC B2545 .
- Go to next step: If the DTC is not set
Engine running, park brake applied, transmission in REVERSE.
Verify the backup lamps are On.
- If the backup lamps are not ON
  Refer to Backup Lamps Malfunction .
- Go to next step: If the backup lamps are ON
Refer to Circuit/System Testing.