OBD Guide
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P1394

Ignition Coil Power Output Stage 2 Malfunction

P1394 is an OBD-II diagnostic trouble code meaning: Ignition Coil Power Output Stage 2 Malfunction. Common causes: ignition coil malfunction, wiring damage. Estimated repair cost: $17–56.

Severity
⚠️ Medium
Can you drive?
Limited driving only, diagnose soon
Approx. repair cost
$17–56 (est.)

Symptoms

  • The engine runs intermittently
  • Misfire in cylinder 2
  • Power Loss
  • Increased fuel consumption
  • Check Engine Light Is On

Causes

  • Ignition coil malfunction
  • Wiring damage
  • Problems with connectors
  • Engine control unit malfunction
  • Poor contact in the power circuit

How to Fix

  1. Check the condition of the ignition coil
  2. Inspect wiring and connectors
  3. Check the power and ground of the coil
  4. Replace the ignition coil if necessary
  5. Check the operation of the engine control unit

Related codes

P1391P1392P1393

Error P1394 by Vehicle Brand

BuickCadillacChevroletChryslerFordGMGMCLincolnMercuryOldsmobileSaturnVolkswagen

FAQ

What does the P1394 code mean?

P1394 is an OBD-II diagnostic trouble code that indicates: Ignition Coil Power Output Stage 2 Malfunction

What causes a P1394 error code?

The most common causes of P1394 include: Ignition coil malfunction; Wiring damage; Problems with connectors; Engine control unit malfunction.

How do I fix a P1394 diagnostic trouble code?

To fix P1394: Check the condition of the ignition coil. Inspect wiring and connectors. Check the power and ground of the coil. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with P1394?

Limited driving only, diagnose soon

How much does it cost to fix P1394?

The estimated repair cost for P1394 is $17–56. Actual cost depends on your vehicle, location, and labor rates.

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