OBD Guide

P0354

Ignition Coil D Primary Control Circuit/Open

P0354 is an OBD-II diagnostic trouble code meaning: Ignition Coil D Primary Control Circuit/Open. Common causes: broken or damaged ignition coil wiring harness, ignition coil malfunction. Estimated repair cost: $56–167.

Severity
⚠️ Medium
Can you drive?
Limited driving only, diagnose soon
Approx. repair cost
$56–167 (est.)

Symptoms

  • Misfire in cylinder D
  • Unstable engine operation
  • Power Loss
  • Check Engine Light Illuminates

Causes

  • Broken or damaged ignition coil wiring harness
  • Ignition coil malfunction
  • Problems with the ignition coil connector
  • Engine control unit (ECU) malfunction

How to Fix

  1. Check the integrity of the ignition coil wiring harness
  2. Check the resistance of the ignition coil
  3. Inspect the coil connector for damage
  4. If necessary, replace the ignition coil
  5. Check the output signals of the engine control unit

Related codes

Error P0354 by Vehicle Brand

FAQ

What does the P0354 code mean?

P0354 is an OBD-II diagnostic trouble code that indicates: Ignition Coil D Primary Control Circuit/Open

What causes a P0354 error code?

The most common causes of P0354 include: Broken or damaged ignition coil wiring harness; Ignition coil malfunction; Problems with the ignition coil connector; Engine control unit (ECU) malfunction.

How do I fix a P0354 diagnostic trouble code?

To fix P0354: Check the integrity of the ignition coil wiring harness. Check the resistance of the ignition coil. Inspect the coil connector for damage. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with P0354?

Limited driving only, diagnose soon

How much does it cost to fix P0354?

The estimated repair cost for P0354 is $56–167. Actual cost depends on your vehicle, location, and labor rates.

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