C055A

ABS Pump Motor Supply Voltage Circuit A High

Severity

🔴 High

Can you drive?

Do not drive — repair immediately

Approx. repair cost

$56–222 (est.)

Symptoms

ABS light is on
Unstable operation of the anti-lock braking system
Possible extraneous noise from the ABS pump

Causes

Malfunction of the generator or voltage regulator
Damaged ABS pump wiring harness
Short circuit in power supply
Problems with the ABS control module

How to Fix

Check the voltage in the vehicle's on-board network
Inspect the ABS pump wiring harness for damage.
Check the resistance of the pump power circuit
If necessary, replace the generator voltage regulator
Test and/or replace ABS module

Related codes

C055B C0550 U0121