OBD Guide

P0CBF

Drive Motor A Coolant Temperature Sensor Circuit High

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

Symptoms

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

Causes

  • Coolant temperature sensor malfunction
  • Open or short circuit in the sensor circuit
  • Damage to sensor contacts or connector
  • Problems with the engine control unit (ECU)
  • Insufficient coolant

How to Fix

  1. Check coolant level
  2. Inspect the sensor wiring and connectors
  3. Check the resistance of the temperature sensor
  4. Replace the coolant temperature sensor if necessary

Error P0CBF by Vehicle Brand