OBD Codes List

Diagnostic reference · P0D68

P0D68

A/C Compressor Motor Voltage Sensor A Circuit

System
Powertrain control (P code)
Lamp
Check Engine Light
Category
Powertrain - Fuel/Air Metering

What it means

P0D68 means A/C Compressor Motor Voltage Sensor A Circuit.

Where it lives

For P0D68, the circuit described runs through the sensor. The description of P0D68 reports a fault at the sensor.

Check these first

  • An open or shorted A/C compressor motor voltage sensor A circuit
  • A failed voltage sensor inside the compressor motor assembly
  • Corroded pins in the compressor motor connector
  • A broken wire between the sensor and the compressor control module

What to do next

  1. Inspect the compressor motor voltage sensor wiring for opens and shorts
  2. Check the connector pins for corrosion
  3. Measure the sensor signal with the A/C commanded on
  4. Compare the reading to a meter on the motor supply
  5. Replace the sensor or compressor assembly if the circuit does not recover
  6. Clear the code and retest

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Updated

Generic SAE J2012 definition. Last updated 2026-10-10.