c1428 actuator pump motor circuit malfunction
C1428 Actuator Pump Motor Circuit Malfunction
OBD2 Code: C1428
Description: Actuator Pump Motor Circuit Malfunction
Definition: This code indicates a malfunction in the actuator pump motor circuit, which is part of the vehicle’s braking system. The issue could be due to electrical faults such as open or short circuits, poor connections, or a faulty pump motor.
C1428 – Actuator Pump Motor Circuit Malfunction
Typical Severity: Moderate
Common Causes
C1428 – Actuator Pump Motor Circuit Malfunction
Common Causes:
- Faulty actuator pump motor
- Corroded or damaged wiring/connectors in the actuator pump motor circuit
- Low brake fluid level
- Defective ABS control module
Common Misdiagnosis
OBD2 Code: C1428
Description: Actuator Pump Motor Circuit Malfunction
Common Misdiagnosis: Replacing the actuator pump motor without checking for wiring issues or a faulty relay.
Common Diagnostic Steps
OBD2 Code: C1428
Description: Actuator Pump Motor Circuit Malfunction
Common Diagnostic Steps:
- Check the ABS fuse and replace if necessary.
- Inspect the actuator pump motor wiring for any signs of damage or disconnection.
- Test the actuator pump motor for proper operation using a multimeter.
- Examine the ABS module for any faults or issues.
- Verify that all electrical connections are secure and free from corrosion.
- If applicable, check for any related Technical Service Bulletins (TSBs) from the manufacturer.
- Clear the code and perform a test drive to see if it returns after repairs are made.