DTC P0C77 GMC
CABIN HEATER 3 CONTROL - CIRCUIT SHORT TO GROUND OR OPEN
CABIN HEATER 3 CONTROL - CIRCUIT SHORT TO GROUND OR OPEN
Description
With the ignition on. Output on (short to ground check). Output off (open check). If the Body Control Module (BCM) detects the (K363) PTC 3 Relay Control circuit is open or shorted to ground
Cause and Solution
(K363) PTC 3 RELAY CONTROL CIRCUIT OPEN(K363) PTC 3 RELAY CONTROL CIRCUIT SHORTED TO GROUNDCABIN HEATER 3 RELAYBODY CONTROL MODULE (BCM)
Video Guide
Diagnostic Info
- DTC Code: P0C77
- Brand: GMC