OBD Guide

P288B

Park Lock/Pawl Actuator Circuit Performance

P288B is an OBD-II diagnostic trouble code meaning: Park Lock/Pawl Actuator Circuit Performance. Common causes: open or short circuit in the actuator circuit, parking lock relay malfunction. Estimated repair cost: $28–167.

Severity
⚠️ Medium
Can you drive?
Do not drive — repair immediately
Approx. repair cost
$28–167 (est.)

Symptoms

  • The car does not exit the parking mode (P)
  • Transmission indicator flashes
  • A transmission fault warning appears on the dashboard
  • Clicking noise when trying to change gears
  • The car may roll in the parking lot

Causes

  • Open or short circuit in the actuator circuit
  • Parking lock relay malfunction
  • Locking mechanism jammed
  • Transmission Control Module (TCM) Problems
  • Wear or damage to the actuator itself

How to Fix

  1. Check fuses and relays associated with the system
  2. Diagnose the actuator circuit for opens and short circuits
  3. Check the mechanical part of the lock for jamming
  4. Replace a faulty parking lock actuator
  5. If necessary, reflash or replace the TCM module

Related codes

Error P288B by Vehicle Brand

FAQ

What does the P288B code mean?

P288B is an OBD-II diagnostic trouble code that indicates: Park Lock/Pawl Actuator Circuit Performance

What causes a P288B error code?

The most common causes of P288B include: Open or short circuit in the actuator circuit; Parking lock relay malfunction; Locking mechanism jammed; Transmission Control Module (TCM) Problems.

How do I fix a P288B diagnostic trouble code?

To fix P288B: Check fuses and relays associated with the system. Diagnose the actuator circuit for opens and short circuits. Check the mechanical part of the lock for jamming. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with P288B?

Do not drive — repair immediately

How much does it cost to fix P288B?

The estimated repair cost for P288B is $28–167. Actual cost depends on your vehicle, location, and labor rates.

See also: Russian version · NationStat