FREE REPAIR MANUALS & LABOR GUIDES 1982-2013 Vehicles
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P0601

Test 36:





SYMPTOM
P0601 - PCM INTERNAL CONTROLLER FAILURE

TEST NOTE
This symptom is diagnosed using the test 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 defective