OBD Guide

P0CBC

Drive Motor A Coolant Temperature Sensor Circuit

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

Symptoms

  • Check Engine light comes on
  • Reduced motor power
  • Incorrect coolant temperature readings
  • Engine overheating
  • Activation of emergency operation

Causes

  • Coolant temperature sensor malfunction
  • Open or short circuit in the sensor circuit
  • Poor contact in sensor connectors
  • Wiring harness damage
  • Engine control unit (ECU) malfunction

How to Fix

  1. Check the condition of the coolant temperature sensor
  2. Check the integrity of the sensor circuit and connectors
  3. Measure the sensor resistance and compare with standards
  4. Replace the faulty sensor if necessary
  5. Check the operation of the system after repair

Related codes

Error P0CBC by Vehicle Brand