OBD Guide
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P102F

Glow Plug Control Module Temperature Performance

P102F is an OBD-II diagnostic trouble code meaning: Glow Plug Control Module Temperature Performance. Common causes: malfunction of the glow plug control module, problems with wiring to the module. Estimated repair cost: $33–167.

Severity
⚠️ Medium
Can you drive?
Yes, but get it checked soon
Approx. repair cost
$33–167 (est.)

Symptoms

  • Difficulty starting the engine in cold weather
  • Check Engine Light Is On
  • Reduced engine power
  • Increased fuel consumption
  • Unstable engine operation at idle

Causes

  • Malfunction of the glow plug control module
  • Problems with wiring to the module
  • Faulty glow plugs
  • Glow plug relay problems
  • Short circuit in control circuit

How to Fix

  1. Check the condition of the glow plugs
  2. Check the integrity of the wiring to the control module
  3. Check the functionality of the glow plug relay
  4. Test the glow plug control module
  5. Replace the faulty module if necessary

Related codes

P102EP1030P0380

FAQ

What does the P102F code mean?

P102F is an OBD-II diagnostic trouble code that indicates: Glow Plug Control Module Temperature Performance

What causes a P102F error code?

The most common causes of P102F include: Malfunction of the glow plug control module; Problems with wiring to the module; Faulty glow plugs; Glow plug relay problems.

How do I fix a P102F diagnostic trouble code?

To fix P102F: Check the condition of the glow plugs. Check the integrity of the wiring to the control module. Check the functionality of the glow plug relay. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with P102F?

Yes, but get it checked soon

How much does it cost to fix P102F?

The estimated repair cost for P102F is $33–167. Actual cost depends on your vehicle, location, and labor rates.

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See also: Russian version · NationStat