P1694

SYMPTOM
P1694 - BUS COMMUNICATION WITH ENGINE MODULE

WHEN MONITORED
Continuously with ignition key on.

SET CONDITION
If no bus messages are received from the Powertrain Control Module (PCM) for 10 seconds.

Note: Some after market equipment will also set this DTC. example: remote starters and communication equipment.

POSSIBLE CAUSES
- OTHER BUS PROBLEMS PRESENT
- INTERMITTENT WIRING AND CONNECTORS
- PCI BUS CIRCUIT OPEN
- TCM - BUS PROBLEM