DTC U1193 GMC
Main Relay Circuit Electrical Malfunction
Main Relay Circuit Electrical Malfunction
Description
The ECM detected an electrical malfunction on the main relay circuit
Cause and Solution
Engine Control Module (ECM) has failedVoltage supply for Engine Control Module (ECM) is faultyCheck activation of Motronic Engine Control Module (ECM) Power Supply Relay
Video Guide
Diagnostic Info
- DTC Code: U1193
- Brand: GMC