P0601

Test 1:

SYMPTOM
P0601-PCM INTERNAL CONTROLLER FAILURE

TEST NOTE
All symptoms listed above are diagnosed using the same tests. The title for the tests will be P0600-PCM FAILURE SPI COMMUNICATIONS.

WHEN MONITORED
Ignition key ON.

SET CONDITION
Internal checksum for software failed, does not match calculated value.

POSSIBLE CAUSES
- PCM internal or SPI