Code result

P0826

Up and Down Shift Switch Circuit

Moderate severity

What it means

The TCM detects a fault in the combined up/down shift switch circuit, where both switch states are simultaneously active or both inactive when activity is expected.

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

  • Switch internal short

    high

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

  • Wiring shorted between channels

    medium

    A plausible cause — test and verify before replacing parts.

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