OBD Guide

P001A

A Camshaft Profile Actuator A Control Circuit/Open Bank 1

Severity
⚠️ Medium
Can you drive?
Limited driving only, diagnose soon
Approx. repair cost
$56–167 (est.)

Symptoms

  • Unstable engine idling
  • Reduced engine power
  • Increased fuel consumption
  • Check Engine Light Illuminates

Causes

  • Open or short circuit in VVT solenoid wiring harness
  • VVT solenoid malfunction
  • Low or poor quality engine oil
  • Mechanical damage to the VVT mechanism
  • Problems with the engine control unit

How to Fix

  1. Check the level and condition of the engine oil
  2. Visually inspect the VVT solenoid wiring harness and connectors
  3. Check VVT solenoid resistance
  4. Check the operation of the VVT mechanism
  5. If necessary, replace the solenoid or repair the wiring harness.

Related codes

Error P001A by Vehicle Brand