Powertrain
Definition only
Lights the check engine lamp
P262C: Sensor Reference Voltage G Circuit / Open
Standardized SAE J2012 code · P26xx — Computer and output circuits
What does P262C mean?
The 5 V reference G output that the engine controller supplies to a group of sensors is open. All sensors fed from this rail will report invalid readings.
The code tells you which monitor failed, not which part is broken. Test before replacing parts.
Common causes
- High Open wire on the reference rail
- Medium Open inside the ECU reference output
Likelihood is a general estimate across vehicles; your make and model may differ.
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P262C in the community
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