DTC B0084 Hummer
Output Driver Module B Circuit Malfunction
Output Driver Module B Circuit Malfunction
Description
Key on, and the PCM detected an unexpected voltage condition on the ODM B circuit (fault line) that controls the A C Relay, Cooling Fan Relay, MIL or Upshift Indicator Lamp operation for 20 seconds. The PCM includes a Quad Driver Module (QDM) that has f
Cause and Solution
A C relay control circuit is open, shorted to ground or to B+CFAN relay control circuit is open, shorted to ground or to B+MIL (lamp) control circuit is open, shorted to ground or to B+Upshift (lamp) control circuit is open, shorted to groun
Video Guide
Diagnostic Info
- DTC Code: B0084
- Brand: Hummer