Operation CHARM
: Car repair manuals for everyone.
Home
>>
Dodge or Ram Truck
>>
2003
>>
RAM 3500 Van V8-5.9L VIN Z LDC
>>
Repair and Diagnosis
>>
Powertrain Management
>>
Computers and Control Systems
>>
Testing and Inspection
>>
Symptom Related Diagnostic Procedures
>>
Communication Problems
>>
No Response From Powertrain Control Module (CCD Only)
No Response From Powertrain Control Module (CCD Only)
Test 1 - 4:
SYMPTOM
NO RESPONSE FROM
POWERTRAIN CONTROL MODULE
(
CCD
)
Possible Causes
-
Does engine start
-
CCD bus
(+) open to
PCM
-
CCD bus (-) open to PCM
-
Powertrain control module