OBD Guide

P2A34

AFCM Power Relay Control Circuit High

P2A34 is an OBD-II diagnostic trouble code meaning: AFCM Power Relay Control Circuit High. Common causes: short circuit in afcm relay control circuit, faulty afcm relay. Estimated repair cost: $6–33.

Severity
⚠️ Medium
Can you drive?
Yes, but get it checked soon
Approx. repair cost
$6–33 (est.)

Symptoms

  • Check Engine Light Is On
  • Unstable engine operation
  • Reduced engine power
  • Increased fuel consumption
  • The engine may not start

Causes

  • Short circuit in AFCM relay control circuit
  • Faulty AFCM relay
  • Problems with the engine control unit (ECU)
  • Wiring harness damage
  • Corrosion of contacts in the circuit

How to Fix

  1. Check the AFCM relay control circuit for a short circuit.
  2. Test the AFCM relay for serviceability
  3. Inspect the wiring harness for damage
  4. Check contacts for corrosion and clean if necessary
  5. Replace AFCM relay if necessary

Related codes

Error P2A34 by Vehicle Brand

FAQ

What does the P2A34 code mean?

P2A34 is an OBD-II diagnostic trouble code that indicates: AFCM Power Relay Control Circuit High

What causes a P2A34 error code?

The most common causes of P2A34 include: Short circuit in AFCM relay control circuit; Faulty AFCM relay; Problems with the engine control unit (ECU); Wiring harness damage.

How do I fix a P2A34 diagnostic trouble code?

To fix P2A34: Check the AFCM relay control circuit for a short circuit.. Test the AFCM relay for serviceability. Inspect the wiring harness for damage. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with P2A34?

Yes, but get it checked soon

How much does it cost to fix P2A34?

The estimated repair cost for P2A34 is $6–33. Actual cost depends on your vehicle, location, and labor rates.

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