OBD Guide
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P324E

MG ECU Power Relay Intermittent Circuit

P324E is an OBD-II diagnostic trouble code meaning: MG ECU Power Relay Intermittent Circuit. Common causes: faulty mg ecu power relay, wiring harness damage. Estimated repair cost: $17–67.

Severity
⚠️ Medium
Can you drive?
Yes, but get it checked soon
Approx. repair cost
$17–67 (est.)

Symptoms

  • Unstable operation of the hybrid system
  • Power reduction
  • Check Engine Light Is On
  • Problems with charging a high-voltage battery
  • Intermittent operation of the electric motor

Causes

  • Faulty MG ECU power relay
  • Wiring harness damage
  • Poor contact in connectors
  • Short circuit in the circuit
  • MG control unit malfunction

How to Fix

  1. Check MG ECU power relay for malfunction
  2. Inspect the wiring harness and connectors for damage
  3. Check the voltage in the relay circuit
  4. Replace the relay or repair damaged wiring
  5. Test the MG control unit

Related codes

P324FP3250P3251

FAQ

What does the P324E code mean?

P324E is an OBD-II diagnostic trouble code that indicates: MG ECU Power Relay Intermittent Circuit

What causes a P324E error code?

The most common causes of P324E include: Faulty MG ECU power relay; Wiring harness damage; Poor contact in connectors; Short circuit in the circuit.

How do I fix a P324E diagnostic trouble code?

To fix P324E: Check MG ECU power relay for malfunction. Inspect the wiring harness and connectors for damage. Check the voltage in the relay circuit. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with P324E?

Yes, but get it checked soon

How much does it cost to fix P324E?

The estimated repair cost for P324E is $17–67. Actual cost depends on your vehicle, location, and labor rates.

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See also: Russian version · NationStat