OBD Guide

P2308

Ignition Coil C Secondary Circuit

P2308 is an OBD-II diagnostic trouble code meaning: Ignition Coil C Secondary Circuit. Common causes: faulty ignition coil, damaged high voltage wires. Estimated repair cost: $17–56.

Severity
⚠️ Medium
Can you drive?
Yes, but get it checked soon
Approx. repair cost
$17–56 (est.)

Symptoms

  • Misfire in cylinder C
  • Reduced engine power
  • Increased fuel consumption
  • Rough engine idling
  • Check Engine Light on Dashboard

Causes

  • Faulty ignition coil
  • Damaged high voltage wires
  • Poor contact in coil connectors
  • Short circuit in the circuit
  • Engine control unit (ECU) malfunction

How to Fix

  1. Check the resistance of the ignition coil
  2. Inspect high voltage wires for damage
  3. Clean the contacts of the coil connectors from corrosion.
  4. Check coil supply voltage
  5. If necessary, replace the ignition coil

Related codes

Error P2308 by Vehicle Brand

FAQ

What does the P2308 code mean?

P2308 is an OBD-II diagnostic trouble code that indicates: Ignition Coil C Secondary Circuit

What causes a P2308 error code?

The most common causes of P2308 include: Faulty ignition coil; Damaged high voltage wires; Poor contact in coil connectors; Short circuit in the circuit.

How do I fix a P2308 diagnostic trouble code?

To fix P2308: Check the resistance of the ignition coil. Inspect high voltage wires for damage. Clean the contacts of the coil connectors from corrosion.. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with P2308?

Yes, but get it checked soon

How much does it cost to fix P2308?

The estimated repair cost for P2308 is $17–56. Actual cost depends on your vehicle, location, and labor rates.

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