OBD Guide
ENFRDEESPT

C1428

Actuator Pump Motor Circuit Malfunction

C1428 is an OBD-II diagnostic trouble code meaning: Actuator Pump Motor Circuit Malfunction. Common causes: open or short circuit in the pump wiring harness, pump motor malfunction. Estimated repair cost: $111–333.

Severity
🔴 High
Can you drive?
Do not drive — repair immediately
Approx. repair cost
$111–333 (est.)

Symptoms

  • The passive safety system malfunction lamp is on
  • Lack of pressure in the passive safety system
  • Malfunction of airbags or seat belt pretensioners

Causes

  • Open or short circuit in the pump wiring harness
  • Pump motor malfunction
  • Pump relay or fuse problems
  • Defective passive safety control unit

How to Fix

  1. Check the pump fuse and relay
  2. Inspect the wiring harness for damage
  3. Check the resistance and voltage on the pump motor
  4. Replace the pump motor if necessary
  5. Reset the error and check the system

Related codes

B1428C1429B1000

FAQ

What does the C1428 code mean?

C1428 is an OBD-II diagnostic trouble code that indicates: Actuator Pump Motor Circuit Malfunction

What causes a C1428 error code?

The most common causes of C1428 include: Open or short circuit in the pump wiring harness; Pump motor malfunction; Pump relay or fuse problems; Defective passive safety control unit.

How do I fix a C1428 diagnostic trouble code?

To fix C1428: Check the pump fuse and relay. Inspect the wiring harness for damage. Check the resistance and voltage on the pump motor. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with C1428?

Do not drive — repair immediately

How much does it cost to fix C1428?

The estimated repair cost for C1428 is $111–333. Actual cost depends on your vehicle, location, and labor rates.

FRDEESPT

See also: Russian version · NationStat