OBD Guide

P017D

Cylinder Head Temperature Sensor A Circuit High

Severity
⚠️ Medium
Can you drive?
Limited driving only, diagnose soon
Approx. repair cost
$56–167 (est.)

Symptoms

  • Unstable engine operation
  • Increased fuel consumption
  • Difficulty starting the engine
  • Reduced engine power

Causes

  • Malfunction of the cylinder head temperature sensor
  • Open or short circuit in wiring harness
  • Poor contact in the sensor connector
  • Engine control unit (ECU) malfunction

How to Fix

  1. Check the resistance of the cylinder head temperature sensor
  2. Inspect the wiring harness and connectors for damage.
  3. Check the voltage and continuity of the sensor circuit
  4. If necessary, replace the sensor or repair the wiring harness

Related codes

Error P017D by Vehicle Brand