Sensor Reference Voltage G Circuit High
The 5 V reference G voltage is above the expected level. Typical causes are a short to battery or an internal regulator failure.
Affected components
- Control module
- Reference voltage rail
- Wiring harness
Common causes
- High likelihood: Reference wire shorted to a B+ supply
- Medium likelihood: Internal 5 V regulator failed
- Low likelihood: Connector pins corroded - high contact resistance
Diagnostic notes
- The malfunction indicator lamp may illuminate
Related codes
Sources
Diagnostic information is provided for reference only. Confirm the code with a compatible scan tool and follow the vehicle manufacturer's service procedures before replacing components.