P1607

Test 1:

SYMPTOM
P1607-PCM INTERNAL SHUTDOWN TIMER RATIONALITY

TEST NOTE
This symptom is diagnosed using the test P1603-PCM INTERNAL DUAL-PORT RAM COMMUNICATION.

WHEN MONITORED
During cold start.

SET CONDITION
Compares shut down time to coolant temperature.

POSSIBLE CAUSES
- Fuse ignition switch output (off-run-start)
- PCM internal failure