OBD Guide

P0D68

A/C Compressor Motor Voltage Sensor A Circuit

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

Symptoms

  • Air conditioner doesn't work
  • Reduced cooling efficiency
  • The air conditioning indicator is flashing
  • Increased noise from the compressor
  • Noticeable fluctuations in engine speed when the air conditioner is turned on

Causes

  • Open or short circuit in the sensor circuit
  • Faulty compressor voltage sensor
  • Problems with the engine control unit
  • Corrosion of contacts or connectors
  • Low voltage in the on-board network

How to Fix

  1. Check battery voltage and generator operation
  2. Inspect the sensor wiring harness and connectors for damage.
  3. Check the resistance and signal of the voltage sensor
  4. If necessary, replace the compressor voltage sensor
  5. Check and reflash the engine control unit if necessary

Related codes

Error P0D68 by Vehicle Brand