OBD-II code · Powertrain (generic, extended)
P262E 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.
Is it safe to drive with P262E?
Usually safe to drive in the short term. Get it diagnosed when convenient, sooner if the car drives differently.
Common causes
- Most likelyReference wire shorted to a B+ supply
- PossibleInternal 5 V regulator failed
- Less likelyConnector pins corroded - high contact resistance
Repair at a glance
- Difficulty
- Medium
- DIY friendly
- Best left to a mechanic
- Typical labour
- 1–4 h
- Emissions test
- Usually unaffected
- Parts involved
- Control Module, Reference Voltage Rail, Wiring Harness
Related codes
- P0653Sensor Reference Voltage B Circuit High
- P0699Sensor Reference Voltage C Circuit High
- P06A5Sensor Reference Voltage D Circuit High
- P06D4Sensor Reference Voltage E Circuit High
- P06D8Sensor Reference Voltage F Circuit High
- P262BControl Module Power Off Timer Performance
- P262CSensor Reference Voltage G Circuit / Open
- P262DSensor Reference Voltage G Circuit Low
- P262FSensor Reference Voltage G Circuit Range/Performance
- P2630O2 Sensor Pumping Current Trim Circuit Low Bank 2 Sensor 1
- P2631O2 Sensor Pumping Current Trim Circuit High Bank 2 Sensor 1
Code data: OBDex open dataset (CC0). Labour times are typical ranges, not a quote.