DTC P023 Chevrolet
5-Volt VREF Supply Voltage Too Low
5-Volt VREF Supply Voltage Too Low
Description
Key on or engine running; and the PCM detected the 5-volt VREF supply was less than 3.5v for 4 seconds during the CCM test.
Cause and Solution
A C pressure Sensor has failed (a short to ground condition)MAP Sensor has failed (a short to ground condition)TP Sensor has failed (a short to ground condition)PCM has failed
Video Guide
Diagnostic Info
- DTC Code: P023
- Brand: Chevrolet