DTC B1028 Hummer
Rear Window Wiper Motor (Park) Signal Error
Rear Window Wiper Motor (Park) Signal Error
Description
A malfunction is detected in the rear wiper motor circuit. NOTE: If you are troubleshooting multiple DTCs, be sure to follow the instructions in B-CAN System Diagnosis Test Mode A.
Cause and Solution
Blown fuse
Open or Short in the wiper motor circuit
Poor ground
Faulty rear window wiper relay
Faulty rear window wiper motor
Faulty MICU; replace the under-dash fuse relay box
Video Guide
Diagnostic Info
- DTC Code: B1028
- Brand: Hummer