OBD Guide

P2302

Ignition Coil A Secondary Circuit

P2302 is an OBD-II diagnostic trouble code meaning: Ignition Coil A Secondary Circuit. Common causes: faulty ignition coil, damaged high voltage wires. Estimated repair cost: $17–67.

Severity
⚠️ Medium
Can you drive?
Limited driving only, diagnose soon
Approx. repair cost
$17–67 (est.)

Symptoms

  • Misfire in cylinder A
  • Engine stalls at idle
  • Reduced engine power
  • Increased fuel consumption
  • Check Engine Light Is On

Causes

  • Faulty ignition coil
  • Damaged high voltage wires
  • Worn spark plugs
  • Poor contact in connectors
  • Problems with the ignition control module

How to Fix

  1. Check the condition of the spark plugs
  2. Inspect high-voltage wires for damage
  3. Measure the resistance of the ignition coil
  4. Check connections and connectors of the circuit
  5. Replace the faulty ignition coil

Related codes

Error P2302 by Vehicle Brand

FAQ

What does the P2302 code mean?

P2302 is an OBD-II diagnostic trouble code that indicates: Ignition Coil A Secondary Circuit

What causes a P2302 error code?

The most common causes of P2302 include: Faulty ignition coil; Damaged high voltage wires; Worn spark plugs; Poor contact in connectors.

How do I fix a P2302 diagnostic trouble code?

To fix P2302: Check the condition of the spark plugs. Inspect high-voltage wires for damage. Measure the resistance of the ignition coil. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with P2302?

Limited driving only, diagnose soon

How much does it cost to fix P2302?

The estimated repair cost for P2302 is $17–67. Actual cost depends on your vehicle, location, and labor rates.

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