Chrysler PT Cruiser 2001 Service Manual Supplement page 2489

Symptom List:
P0600-PCM FAILURE SPI COMMUNICATIONS
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 and Set Condition:
P0600-PCM FAILURE SPI COMMUNICATIONS
When Monitored: Ignition key on.
Set Condition: Internal Bus communication failure between processors.
P0601-PCM INTERNAL CONTROLLER FAILURE
When Monitored: Ignition key on.
Set Condition: Internal checksum for software failed, does not match calculated value.
PCM (INTERNAL OR SPI)
TEST
1 The Powertrain Control Module is reporting internal errors and must be replaced.
View repair.
Repair
POSSIBLE CAUSES
ACTION
Replace the Powertrain Control Module.
Perform POWERTRAIN VERIFICATION TEST VER - 1.
29
COMMUNICATION
APPLICABILITY
All