OBD Guide

P2C39

Cylinder Head Temperature Sensor B Range/Performance

P2C39 is an OBD-II diagnostic trouble code meaning: Cylinder Head Temperature Sensor B Range/Performance. Common causes: faulty head temperature sensor, damage to the sensor wiring harness. Estimated repair cost: $17–56.

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

Symptoms

  • Incorrect engine temperature readings
  • Engine overheating
  • Reduced engine performance
  • Increased fuel consumption
  • Check Engine light comes on

Causes

  • Faulty head temperature sensor
  • Damage to the sensor wiring harness
  • Poor contact in the sensor connector
  • Short circuit or open circuit in the sensor circuit
  • Problems with the engine control unit

How to Fix

  1. Check the condition of the head temperature sensor
  2. Inspect the wiring harness and connectors for damage.
  3. Check the sensor circuit for an open or short circuit
  4. Replace the head temperature sensor if necessary
  5. Reset the error code and check if it returns

Related codes

Error P2C39 by Vehicle Brand

FAQ

What does the P2C39 code mean?

P2C39 is an OBD-II diagnostic trouble code that indicates: Cylinder Head Temperature Sensor B Range/Performance

What causes a P2C39 error code?

The most common causes of P2C39 include: Faulty head temperature sensor; Damage to the sensor wiring harness; Poor contact in the sensor connector; Short circuit or open circuit in the sensor circuit.

How do I fix a P2C39 diagnostic trouble code?

To fix P2C39: Check the condition of the head temperature sensor. Inspect the wiring harness and connectors for damage.. Check the sensor circuit for an open or short circuit. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with P2C39?

Limited driving only, diagnose soon

How much does it cost to fix P2C39?

The estimated repair cost for P2C39 is $17–56. Actual cost depends on your vehicle, location, and labor rates.

See also: Russian version · NationStat