DTC U1891 GMC
Air Conditioning System Fault
Air Conditioning System Fault
Description
The refrigerant distribution valve temperature has not been reduced by more than 2°C (4°F) since the valve is opened.
Cause and Solution
Wiring, terminals or connectors Base A C system Auxiliary evaporator thermistor Traction Battery Control Module (TBCM)
Video Guide
Diagnostic Info
- DTC Code: U1891
- Brand: GMC