C0532 indicates the electronic brake control module (EBCM) has detected a voltage level above the expected threshold in the ABS pump motor control circuit. This typically means the motor driver circuit is seeing excessive voltage, often due to a short to power or an internal driver fault.
Damaged insulation or harness routing allows the motor feed or control wire to contact a constant 12 V source, pulling the circuit high.
Internal winding fault or commutator damage creates an abnormal voltage feedback into the driver circuit.
High resistance or intermittent contact can cause voltage spikes that the module interprets as a circuit-high condition.
The internal MOSFET or driver IC fails shorted, allowing battery voltage to appear on the control output continuously.
Excessive voltage drop on the module ground or a high-resistance power feed skews internal voltage references.
Not directly. Wheel speed sensor codes are separate, but a harness issue affecting both the sensor and motor circuits could produce multiple codes.
The module's internal driver can fail, but wiring faults and pump motor failures are more common. Test the circuit before replacing the module.
Base hydraulic braking remains functional, but ABS, traction control, and stability control will be disabled. The pump may run continuously, draining the battery.
Most replacement modules require programming or configuration to the vehicle VIN and option content; follow the manufacturer's initialization procedure.