Code result

C05A5

ABS Pump Motor Supply Voltage B Circuit/Open

High severity

What it means

Open circuit on ABS pump motor supply voltage B (second redundant supply rail).

Is it safe to drive?

No — stop driving

This code can put the vehicle into limp or reduced-power mode. Avoid extended driving and have the vehicle diagnosed promptly.

Most likely causes

  • Fuse blown

    high

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

  • Pin pushed back out of connector body

    low

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

  • Cracked solder joint inside the module or sensor

    low

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

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