DTC U1040 Cadillac
Damper Motor, Floor Ventilation. Signal Too Low
Damper Motor, Floor Ventilation. Signal Too Low
Description
Diagnostic trouble code (DTC) CCM-000E is stored if the control module registers too low a signal from the floor ventilation damper motor.
Cause and Solution
Short-circuit to supply voltage in the signal cable between the control module and the damper motorOpen-circuit in the signal cable between the control module and the damper motorContact resistance, oxidation or loose connections in the connectorsDefective damper motor.
Video Guide
Diagnostic Info
- DTC Code: U1040
- Brand: Cadillac