Dodge Dakota (R1). Manual — part 825
TEST
ACTION
APPLICABILITY
9
If there are no possible causes remaining, view repair.
All
Repair
Replace and program the Powertrain Control Module in accor-
dance with the Service Information.
Perform POWERTRAIN VERIFICATION TEST VER - 3.
32
CHARGING
*CHECKING
CHARGING
SYSTEM
OPERATION
WITH
NO
DTC’S
PRESENT —
Continued
Symptom:
P0601-PCM INTERNAL CONTROLLER FAILURE
POSSIBLE CAUSES
POWERTRAIN CONTROL MODULE
TEST
ACTION
APPLICABILITY
1
NOTE: This DTC indicates an internal PCM problem.
If there are no possible causes remaining, view repair.
All
Repair
Replace and program the Powertrain Control Module in accor-
dance with the Service Information.
Perform POWERTRAIN VERIFICATION TEST VER - 2.
33
COMMUNICATION
Symptom:
P1685-WRONG OR INVALID KEY MSG RECEIVED FROM SKIM
When Monitored and Set Condition:
P1685-WRONG OR INVALID KEY MSG RECEIVED FROM SKIM
When Monitored:
With the ignition on.
Set Condition:
The PCM does not receive a Valid Key message from the SKIM.
POSSIBLE CAUSES
INCORRECT VIN IN PCM
INVALID SKIM KEY NOT PRESENT
NO COMMUNICATION WITH SKIM
NO VIN PROGRAMMED IN THE PCM
PCM
SKIM TROUBLE CODES SET
TEST
ACTION
APPLICABILITY
1
Turn the ignition on.
With the DRB III
t, read the PCM DTCs. Look for P1685.
Is the Starts Since Set counter for DTC P1685 displayed and equal to 0?
All
Yes
→
No
→
2
With the DRB III
t, attempt to communicate with the SKIM.
Turn the ignition on.
Can the DRB III
t communicate with the SKIM?
All
Yes
→
No
→
Refer to symptom BUS +/- SIGNAL OPEN FROM SKIM in the
COMMUNICATION category.
Perform SKIS VERIFICATION.
3
Turn the ignition on.
With the DRB III
t, check for SKIM DTCs.
Are any DTCs present in the SKIM?
All
Yes
→
Repair all SKIM DTCs.
Perform SKIS VERIFICATION.
No
→
4
Turn the ignition on.
With the DRB III
t, display the VIN that is programmed in the PCM.
Has a VIN been programmed into the PCM?
All
Yes
→
No
→
Program the correct VIN into the PCM and retest.
Perform SKIS VERIFICATION.
34
COMMUNICATION
TEST
ACTION
APPLICABILITY
5
Turn the ignition on.
With the DRB III
t, display the VIN that is programmed in the PCM.
Was the correct VIN programmed into the PCM?
All
Yes
→
No
→
Replace and program the Powertrain Control Module in accor-
dance with the Service Information.
Perform SKIS VERIFICATION.
6
Turn the ignition off.
Replace and program the Sentry Key Immobilizer Module in accordance with the
Service Information.
Turn the ignition on.
With the DRB III
t, erase all SKIM and PCM DTCs.
Attempt to start and idle the engine.
With the DRB III
t, read the PCM DTCs.
Does the DRB III
t display this code?
All
Yes
→
Replace and program the Powertrain Control Module in accor-
dance with the Service Information.
Perform SKIS VERIFICATION.
No
→
Test Complete.
7
NOTE: This DTC could have been set if the SKIM harness connector was
disconnected, or if the SKIM was replaced recently.
NOTE: All keys that the customer uses for this vehicle must be tested to
verify they are operating properly.
Turn the ignition on.
Verify the correct VIN is programmed into the PCM and SKIM.
Turn the ignition off.
With the next customer key turn the ignition key on and crank the engine to start.
With the DRB III
t, read the PCM DTCs. Look for P1685
Is the Starts Since Set counter for DTC P1685 displayed and equal to 0?
All
Yes
→
Replace the Ignition Key.
Perform SKIS VERIFICATION.
No
→
Test Complete.
NOTE: If this DTC cannot be reset, it could have been an actual theft
attempt.
35
COMMUNICATION
P1685-WRONG OR INVALID KEY MSG RECEIVED FROM SKIM —
Continued
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