DTC U0002 Dodge
5-Volt Reference 1 Circuit Malfunction
5-Volt Reference 1 Circuit Malfunction
Description
Key on, and the PCM detected the 5v VREF 1 circuit was out of tolerance for 2 seconds. The EGR Pintle, Fuel Level, Fuel Tank Pressure, MAP and TP sensors all connect to this circuit.
Cause and Solution
5v VREF circuit is shorted to sensor ground or chassis ground5v VREF circuit, MAP or EGR sensor circuit is shorted to (B+)5v VREF circuit shorted to EGR sensor High signal circuitEGR solenoid valve (and sensor) is damaged or has failedPC
Video Guide
Diagnostic Info
- DTC Code: U0002
- Brand: Dodge