P1698

Tests 1 - 3:

Test 4:

SYMPTOM
P1698-NO BUS MESSAGE FROM TRANS CONTROL MODULE

WHEN MONITORED
Equipped with automatic transmission. The ignition ON. Battery voltage greater than 10 volts.

SET CONDITION
No bus messages from the TCM for 20 seconds, two trips required.

POSSIBLE CAUSES
- Intermittent Condition
- Communicate With TCM
- PCI Bus Circuit Open
- PCM