Code result

P0778

Pressure Control Solenoid B Electrical

High severity

What it means

General electrical fault on the pressure control solenoid B circuit — open coil, short to ground or battery, or driver feedback outside the expected range.

Is it safe to drive?

No — stop driving

This code points to a problem that can cause damage or affect safety. Avoid driving and have the vehicle diagnosed promptly.

Most likely causes

  • Open solenoid coil

    high

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

  • Damaged wiring at the transmission case connector

    medium

    A plausible cause — test and verify before replacing parts.

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