OBD Guide

P2C3A

Cylinder Head Temperature Sensor B Circuit Low

P2C3A is an OBD-II diagnostic trouble code meaning: Cylinder Head Temperature Sensor B Circuit Low. Common causes: malfunction of the cylinder head temperature sensor, 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

  • Unstable engine operation
  • Engine overheating
  • Increased fuel consumption
  • Check Engine light comes on

Causes

  • Malfunction of the cylinder head temperature sensor
  • Open or short circuit in the sensor circuit
  • Poor contact in the sensor connector
  • Engine ECU malfunction

How to Fix

  1. Check the integrity of the sensor circuit
  2. Check sensor connections and connectors
  3. Replace cylinder head temperature sensor if necessary
  4. Check the operation of the engine ECU

Related codes

Error P2C3A by Vehicle Brand

FAQ

What does the P2C3A code mean?

P2C3A is an OBD-II diagnostic trouble code that indicates: Cylinder Head Temperature Sensor B Circuit Low

What causes a P2C3A error code?

The most common causes of P2C3A include: Malfunction of the cylinder head temperature sensor; Open or short circuit in the sensor circuit; Poor contact in the sensor connector; Engine ECU malfunction.

How do I fix a P2C3A diagnostic trouble code?

To fix P2C3A: Check the integrity of the sensor circuit. Check sensor connections and connectors. Replace cylinder head temperature sensor if necessary. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with P2C3A?

Yes, but get it checked soon

How much does it cost to fix P2C3A?

The estimated repair cost for P2C3A is $17–56. Actual cost depends on your vehicle, location, and labor rates.

See also: Russian version · NationStat