P2A34

AFCM Power Relay Control Circuit High

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

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

Related codes

P2A33 P2A35 P2A36