Chrysler RG Voyager. Manual — part 232
Symptom List:
NO BCM DIMMING MESSAGES RECEIVED
NO BCM ODOMETER MESSAGES RECEIVED
NO BCM PARK BRAKE MESSAGES RECEIVED
Test Note:
All symptoms listed above are diagnosed using the same tests.
The title for the tests will be NO BCM DIMMING MESSAGES
RECEIVED.
When Monitored and Set Condition:
NO BCM DIMMING MESSAGES RECEIVED
When Monitored:
With the ignition on.
Set Condition:
The Dimming and Lamp Code message from the BCM is missing.
NO BCM ODOMETER MESSAGES RECEIVED
When Monitored:
With the ignition on.
Set Condition:
The Vehicle Odometer message from the BCM is missing.
NO BCM PARK BRAKE MESSAGES RECEIVED
When Monitored:
With the ignition on.
Set Condition:
The Parking Brake Status message from the BCM is missing.
POSSIBLE CAUSES
INTERMITTENT CONDITION
NO COMMUNICATION WITH BCM
PARK ASSIST MODULE
TEST
ACTION
APPLICABILITY
1
With the DRBIII
t, Erase DTCs.
Cycle the ignition off for at least 1 minute.
Turn the ignition on.
With the DRBIII
t under System Tests, perform the Self Test.
With the DRBIII
t read DTCs.
Does this DTC reset?
All
Yes
→ Go To 2
No
→ Go To 4
897
PARK ASSIST SYSTEM
TEST
ACTION
APPLICABILITY
2
Turn the ignition on.
With the DRBIII
t under Monitors, refer to the Odo Msg Present, Dimming Msg
Present, and Park Brake Msg Present status under Park Assist BUS INFO.
Does the DRBIII
t indicate 9Yes9 that any of the messages are present?
All
Yes
→ Replace the Park Assist Module in accordance with the Service
Information.
Perform BODY VERIFICATION TEST - VER 1.
No
→ Go To 3
3
Turn the ignition on.
With the DRBIII
t, attempt to establish communication with the BCM.
Can the DRBIII
t establish communication with the BCM?
All
Yes
→ Replace the Park Assist Module in accordance with the Service
Information.
Perform BODY VERIFICATION TEST - VER 1.
No
→ Refer to the Communication category for the related symptom(s).
Perform BODY VERIFICATION TEST - VER 1.
4
The conditions necessary to set this DTC are not present at this time.
Using the wiring diagrams/schematics as a guide, inspect the wiring and connectors.
While monitoring the DRBIII
t data relative to this circuit, wiggle test the wiring and
connectors.
Look for the data to change or for the DTC to reset during the wiggle test.
Were any problems found?
All
Yes
→ Repair as necessary.
Perform BODY VERIFICATION TEST - VER 1.
No
→ Test Complete.
898
PARK ASSIST SYSTEM
NO BCM DIMMING MESSAGES RECEIVED —
Continued
Symptom List:
NO PCM DISTANCE MESSAGES RECEIVED
NO PCM MESSAGES RECEIVED
Test Note:
All symptoms listed above are diagnosed using the same tests.
The title for the tests will be NO PCM DISTANCE MESSAGES
RECEIVED.
When Monitored and Set Condition:
NO PCM DISTANCE MESSAGES RECEIVED
When Monitored:
With the ignition on.
Set Condition:
The Distance Pulse message from NGC Engine is missing.
NO PCM MESSAGES RECEIVED
When Monitored:
With the ignition on.
Set Condition:
The Engine RPM, Vehicle Speed, and MAP message from NGC Engine is
missing.
POSSIBLE CAUSES
INTERMITTENT CONDITION
NO COMMUNICATION WITH PCM
PCI BUS CKT OPEN TO PARK ASSIST MODULE
PARK ASSIST MODULE
TEST
ACTION
APPLICABILITY
1
With the DRBIII
t, Erase DTCs.
Cycle the ignition off for at least 1 minute.
Turn the ignition on.
With the DRBIII
t under System Tests, perform the Self Test.
With the DRBIII
t read DTCs.
Does this DTC reset?
All
Yes
→ Go To 2
No
→ Go To 5
2
Turn the ignition on.
With the DRBIII
t under Monitors, refer to the NGC Msg Present status under Park
Assist BUS INFO.
Does the DRBIII
t indicate that 9Yes9 the message is present?
All
Yes
→ Inspect the wiring and connectors relative to this circuit. If any
problems are found, repair as necessary. Otherwise, replace the
Park Assist Module in accordance with the Service Information.
Perform BODY VERIFICATION TEST - VER 1.
No
→ Go To 3
899
PARK ASSIST SYSTEM
TEST
ACTION
APPLICABILITY
3
Turn the ignition on.
With the DRBIII
t, attempt to establish communication with the PCM.
Can the DRBIII
t establish communication with the PCM?
All
Yes
→ Inspect the wiring and connectors relative to this circuit. If any
problems are found, repair as necessary. Otherwise, replace the
Park Assist Module in accordance with the Service Information.
Perform BODY VERIFICATION TEST - VER 1.
No
→ Go To 4
4
Turn the ignition off.
Disconnect the Park Assist Module harness connector.
Disconnect the PCM harness connector. Note: If equipped with NGC follow the
caution below.
CAUTION: DO NOT PROBE THE PCM HARNESS CONNECTORS. PROBING
THE PCM HARNESS CONNECTORS WILL DAMAGE THE PCM TERMI-
NALS RESULTING IN POOR TERMINAL TO PIN CONNECTION. INSTALL
MILLER SPECIAL TOOL #8815 TO PERFORM DIAGNOSIS.
Measure the resistance of the PCI Bus circuit between the Park Assist Module
harness connector and the PCM harness connector.
Is the resistance below 5.0 ohms?
All
Yes
→ Inspect the wiring and connectors relative to this circuit. If any
problems are found, repair as necessary. Otherwise, replace the
Park Assist Module in accordance with the Service Information.
Perform BODY VERIFICATION TEST - VER 1.
No
→ Repair the PCI Bus circuit for an open.
Perform BODY VERIFICATION TEST - VER 1.
5
The conditions necessary to set this DTC are not present at this time.
Using the wiring diagrams/schematics as a guide, inspect the wiring and connectors.
While monitoring the DRBIII
t data relative to this circuit, wiggle test the wiring and
connectors.
Look for the data to change or for the DTC to reset during the wiggle test.
Were any problems found?
All
Yes
→ Repair as necessary.
Perform BODY VERIFICATION TEST - VER 1.
No
→ Test Complete.
900
PARK ASSIST SYSTEM
NO PCM DISTANCE MESSAGES RECEIVED —
Continued
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