OBD Guide

P2A36

AFCM Power Relay Sense Circuit Low

Severity
⚠️ Medium
Can you drive?
Yes, but get it checked soon
Approx. repair cost
$6–22 (est.)

Symptoms

  • Check Engine light comes on
  • Reduced engine power
  • Increased fuel consumption
  • The engine is unstable
  • The car may go into emergency mode

Causes

  • Faulty AFCM relay
  • Open or short circuit in the relay control circuit
  • Poor contact in relay circuit connectors
  • Relay power problems
  • Engine control module (ECM) malfunction

How to Fix

  1. Check the status of the AFCM relay
  2. Inspect the relay control circuit for damage
  3. Check the contacts in the relay circuit connectors
  4. Measure the voltage on the relay control circuit
  5. Replace AFCM relay if necessary

Related codes

Error P2A36 by Vehicle Brand