Fault Conditions

P1656

A/C Relay Coil Circuit. Open/Short to Ground.







Fault symptoms
- A/C malfunctioning.
- Compressor may run continuously.

On-Board Diagnostics

Type of diagnosis:
- Continuous. But interrupted when fault criteria fulfilled and will not restart until next driving cycle.

Enable criteria:
- Ignition in ON position. A/C request has previously arrived on bus on some occasion (cars with A/C). Output not active.