Code result

P262E

Sensor Reference Voltage G Circuit High

Moderate severity

What it means

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?

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

  • Reference wire shorted to a B+ supply

    high

    One of the most commonly reported causes for this code — check this first.

  • Internal 5 V regulator failed

    medium

    A plausible cause — test and verify before replacing parts.

  • Connector pins corroded - high contact resistance

    low

    Less common, but worth ruling out after the more likely causes.

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