OBD Guide

P23C5

Engine Coolant Bypass Valve C Position Sensor Circuit High

P23C5 is an OBD-II diagnostic trouble code meaning: Engine Coolant Bypass Valve C Position Sensor Circuit High. Common causes: valve position sensor malfunction, 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

  • Check Engine Light Is On
  • Unstable engine temperature
  • Engine overheating
  • Increased fuel consumption
  • Reduced engine power

Causes

  • Valve position sensor malfunction
  • Open or short circuit in the sensor circuit
  • Poor contact in the sensor connector
  • Coolant bypass valve malfunction
  • Problems with the engine ECU

How to Fix

  1. Check the integrity of the sensor circuit
  2. Inspect the connectors and contacts of the sensor
  3. Check the functionality of the position sensor
  4. If necessary, replace the position sensor
  5. Check the operation of the bypass valve

Related codes

Error P23C5 by Vehicle Brand

FAQ

What does the P23C5 code mean?

P23C5 is an OBD-II diagnostic trouble code that indicates: Engine Coolant Bypass Valve C Position Sensor Circuit High

What causes a P23C5 error code?

The most common causes of P23C5 include: Valve position sensor malfunction; Open or short circuit in the sensor circuit; Poor contact in the sensor connector; Coolant bypass valve malfunction.

How do I fix a P23C5 diagnostic trouble code?

To fix P23C5: Check the integrity of the sensor circuit. Inspect the connectors and contacts of the sensor. Check the functionality of the position sensor. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with P23C5?

Yes, but get it checked soon

How much does it cost to fix P23C5?

The estimated repair cost for P23C5 is $17–56. Actual cost depends on your vehicle, location, and labor rates.

See also: Russian version · NationStat