OBD Guide

P102E

Glow Plug Control Module Temperature Sensor 3 Not Plausible

P102E is an OBD-II diagnostic trouble code meaning: Glow Plug Control Module Temperature Sensor 3 Not Plausible. Common causes: malfunction of the temperature sensor in the glow plug module, open or short circuit in the sensor circuit. Estimated repair cost: $17–56.

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

Symptoms

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

Causes

  • Malfunction of the temperature sensor in the glow plug module
  • Open or short circuit in the sensor circuit
  • Poor contact in the sensor connector
  • Malfunction of the glow plug control module
  • Problems with the engine ECU

How to Fix

  1. Check the continuity of the temperature sensor circuit
  2. Inspect connectors and contacts for corrosion or damage
  3. Check the resistance of the temperature sensor (compare with specifications)
  4. Replace a faulty temperature sensor or glow plug module
  5. Test the system after repair

Related codes

FAQ

What does the P102E code mean?

P102E is an OBD-II diagnostic trouble code that indicates: Glow Plug Control Module Temperature Sensor 3 Not Plausible

What causes a P102E error code?

The most common causes of P102E include: Malfunction of the temperature sensor in the glow plug module; Open or short circuit in the sensor circuit; Poor contact in the sensor connector; Malfunction of the glow plug control module.

How do I fix a P102E diagnostic trouble code?

To fix P102E: Check the continuity of the temperature sensor circuit. Inspect connectors and contacts for corrosion or damage. Check the resistance of the temperature sensor (compare with specifications). For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with P102E?

Yes, but get it checked soon

How much does it cost to fix P102E?

The estimated repair cost for P102E is $17–56. Actual cost depends on your vehicle, location, and labor rates.

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