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Jeep Truck
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2003
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Grand Cherokee 2WD V8-4.7L
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Repair and Diagnosis
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Powertrain Management
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Computers and Control Systems
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Testing and Inspection
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Symptom Related Diagnostic Procedures
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Communication Problems
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No Response From PCM (PCI Bus)
No Response From PCM (PCI Bus)
Test 1:
Test 2:
SYMPTOM
NO RESPONSE FROM
PCM
(
PCI BUS
) - GAS ONLY
POSSIBLE CAUSES
-
PCM
PCI
no response
-
PCI bus
circuit open
-
Powertrain control module
