Chrysler RG Voyager. Manual — part 603
Symptom:
BCM MESSAGE MISSING
When Monitored and Set Condition:
BCM MESSAGE MISSING
When Monitored:
With the ignition on.
Set Condition:
The SKREEM does not recieve an expected BCM PCI Bus message.
POSSIBLE CAUSES
ATTEMPT TO COMMUNICATE WITH ANOTHER MODULE
INTERMITTENT WIRING HARNESS PROBLEM
SKREEM
TEST
ACTION
APPLICABILITY
1
Turn the ignition on.
With the DRB, erase ECM DTCs.
Turn the ignition off, wait 30 seconds, then start and idle the engine for at least 30
seconds.
With the DRB, read SKREEM DTCs.
Did this DTC set again?
All
Yes
→ Go To 2
No
→ Go To 3
2
Turn the ignition on.
With the DRB, attempt to communicate with the Body Control Module.
Was the DRB able to I/D or communicate with the BCM?
All
Yes
→ Replace and program the Sentry Key Remote Entry Module in
accordance with the Service Information.
Perform SKREEM VERIFICATION TEST - VER 1A.
No
→ Refer to symptom list for problems related to Communication
with the BCM.
Perform SKREEM VERIFICATION TEST - VER 1A.
3
Turn the ignition off.
Note: Visually inspect the related wiring harness. Look for any chafed,
pierced, pinched, or partially broken wires.
NOTE: Visually inspect the related wiring harness connectors. Look for
broken, bent, pushed out, or corroded terminals.
Note: Refer to any Technical Service Bulletins (TSB) that may apply.
Were any problems found?
All
Yes
→ Repair wiring harness/connectors as necessary.
Perform SKREEM VERIFICATION TEST - VER 1A.
No
→ Test Complete.
294
SKREEM
Symptom List:
PCM STATUS FAILURE
SERIAL LINK EXTERNAL FAULT
Test Note:
All symptoms listed above are diagnosed using the same tests.
The title for the tests will be PCM STATUS FAILURE.
When Monitored and Set Condition:
PCM STATUS FAILURE
When Monitored:
With the ignition on.
Set Condition:
This DTC exists when a PCM STATUS message was not received from the
PCM for at least 20.0 consecutive seconds.
SERIAL LINK EXTERNAL FAULT
When Monitored:
At ignition on, after ignition on during any rolling code handshake that
occurs with the ECM due to a SKREEM reset, or during SECRET KEY transfers to the
ECM.
Set Condition:
When the SKREEM does not receive an expected PCI BUS message
transmission acknowledgement from the ECM after 3 transmit attempts.
POSSIBLE CAUSES
INTERMITTENT WIRING HARNESS PROBLEM
WIRING HARNESS INSPECTION
SKREEM/ECM
TEST
ACTION
APPLICABILITY
1
NOTE: Ensure the ECM has proper power and ground connections before
continuing.
With the DRBIII
t, read and record the SKREEM DTCs then erase the SKREEM
DTCs.
Turn the ignition off.
Wait 2 minutes.
Turn the ignition on.
With the DRBIII
t, read the SKREEM DTCs.
Does the DRBIII
t display the DTC that was previously erased?
All
Yes
→ Go To 2
No
→ Go To 4
295
SKREEM
TEST
ACTION
APPLICABILITY
2
Turn the ignition off.
NOTE: Visually inspect the related wiring harness and CCD/PCI Bus
(whichever applicable) circuits. Look for any chafed, pierced, pinched, or
partially broken wires.
NOTE: Visually inspect the related wiring harness connectors. Look for
broken, bent, pushed out, or corroded terminals.
Note: Refer to any Technical Service Bulletins (TSB) that may apply.
Were any problems found?
All
Yes
→ Repair as necessary.
Perform SKREEM VERIFICATION TEST - VER 1A.
No
→ Go To 3
3
NOTE: Before proceeding it will be necessary to obtain the SKREEM PIN.
Turn the ignition on.
With the DRBIII
t, display and erase all ECM and SKREEM DTC’s.
Perform 5 ignition key cycles, leaving the ignition key on for a minimum of 90 seconds
per cycle.
With the DRBIII
t, read the SKREEM DTCs.
Does the code appear?
All
Yes
→ Replace and program the Engine Control Module in accordance
with the Service Information.
Perform SKREEM VERIFICATION TEST - VER 1A.
No
→ Test Complete.
4
Turn the ignition off.
Note: Visually inspect the related wiring harness. Look for any chafed,
pierced, pinched, or partially broken wires.
NOTE: Visually inspect the related wiring harness connectors. Look for
broken, bent, pushed out, or corroded terminals.
Note: Refer to any Technical Service Bulletins (TSB) that may apply.
Were any problems found?
All
Yes
→ Repair wiring harness/connectors as necessary.
Perform SKREEM VERIFICATION TEST - VER 1A.
No
→ Test Complete.
296
SKREEM
PCM STATUS FAILURE —
Continued
Symptom List:
ROLLING CODE FAILURE
VIN MISMATCH
Test Note:
All symptoms listed above are diagnosed using the same tests.
The title for the tests will be ROLLING CODE FAILURE.
When Monitored and Set Condition:
ROLLING CODE FAILURE
When Monitored:
At ignition on, after ignition on during any rolling code handshake that
occurs with the ECM due to a SKREEM or ECM reset.
Set Condition:
When a PCM STATUS message with a Valid Key status is not received by
the SKREEM within 3.5 seconds of transmitting the last Valid Key Code message to the
ECM.
VIN MISMATCH
When Monitored:
With the ignition on.
Set Condition:
When the VIN received from the ECM does not match the VIN stored in
the SKREEM’s EEPROM.
POSSIBLE CAUSES
VERIFYING ECM VIN
REPLACE SKREEM AND CHECK DTC’S
INTERMITTENT WIRING HARNESS PROBLEM
ECM
TEST
ACTION
APPLICABILITY
1
With the DRBIII
t, erase the SKREEM DTCs.
Turn the ignition off.
Wait 10 seconds.
Turn the ignition on and wait 2 minutes.
With the DRBIII
t, read the SKREEM DTCs.
Does the DRBIII
t display the DTC that was previously erased?
All
Yes
→ Go To 2
No
→ Go To 4
297
SKREEM
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