P1694

Test 1-2:

Test 3-6:

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
- PCI BUS CIRCUIT OPEN
- TRANSMISSION CONTROL MODULE
- INTERMITTENT WIRING AND CONNECTORS