Code result
P262F
Sensor Reference Voltage G Circuit Range/Performance
Moderate severity
What it means
The 5 V reference G voltage is within range but unstable or offset against expected. Loose ground or marginal regulator load.
Is it safe to drive?
Use caution
The vehicle is usually drivable for short distances, but the problem can worsen or affect emissions. Diagnose and repair as soon as practical.
Most likely causes
High-resistance ground for the reference rail
mediumA plausible cause — test and verify before replacing parts.
One sensor draws excessive current and shifts the rail
mediumA plausible cause — test and verify before replacing parts.
Sensor element aged beyond calibration window
lowLess common, but worth ruling out after the more likely causes.
Related help
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