OBD Guide

P34B3

A Camshaft Position Actuator Position Sensor A Circuit High Bank 2

P34B3 is an OBD-II diagnostic trouble code meaning: A Camshaft Position Actuator Position Sensor A Circuit High Bank 2. Common causes: faulty camshaft position sensor, open or short circuit in the sensor circuit. Estimated repair cost: $33–89.

Severity
⚠️ Medium
Can you drive?
Yes, but get it checked soon
Approx. repair cost
$33–89 (est.)

Symptoms

  • Unstable engine operation
  • Increased fuel consumption
  • Power Loss
  • Check Engine light comes on
  • Problems starting the engine

Causes

  • Faulty camshaft position sensor
  • Open or short circuit in the sensor circuit
  • Sensor wiring harness fault
  • Problems with the camshaft actuator
  • ECU malfunction

How to Fix

  1. Check the integrity of the sensor wiring and connectors
  2. Check the resistance and output voltage of the sensor
  3. Replace camshaft position sensor if necessary
  4. Check the operation of the camshaft actuator
  5. Scan the ECU for additional errors

Related codes

Error P34B3 by Vehicle Brand

FAQ

What does the P34B3 code mean?

P34B3 is an OBD-II diagnostic trouble code that indicates: A Camshaft Position Actuator Position Sensor A Circuit High Bank 2

What causes a P34B3 error code?

The most common causes of P34B3 include: Faulty camshaft position sensor; Open or short circuit in the sensor circuit; Sensor wiring harness fault; Problems with the camshaft actuator.

How do I fix a P34B3 diagnostic trouble code?

To fix P34B3: Check the integrity of the sensor wiring and connectors. Check the resistance and output voltage of the sensor. Replace camshaft position sensor if necessary. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with P34B3?

Yes, but get it checked soon

How much does it cost to fix P34B3?

The estimated repair cost for P34B3 is $33–89. Actual cost depends on your vehicle, location, and labor rates.

See also: Russian version · NationStat