Dodge Dakota (R1). Manual — part 903
Symptom List:
ANTENNA FAILURE
COP FAILURE
EEPROM FAILURE
INTERNAL FAULT
RAM FAILURE
SERIAL LINK INTERNAL FAULT
STACK OVERFLOW FAILURE
Test Note:
All symptoms listed above are diagnosed using the same tests.
The title for the tests will be ANTENNA FAILURE.
When Monitored and Set Condition:
ANTENNA FAILURE
When Monitored:
Every 250 milliseconds with the ignition on.
Set Condition:
The SKIM’s microcontroller determines that an antenna circuit fault has
occurred for 2.0 consecutive seconds.
COP FAILURE
When Monitored:
With the ignition on.
Set Condition:
The COP timer is not reset by the microcontroller every 65.5 milliseconds
EEPROM FAILURE
When Monitored:
With the ignition on.
Set Condition:
When the value written to EEPROM memory does not equal the value
read back after the write operation.
INTERNAL FAULT
When Monitored:
With the ignition on.
Set Condition:
The SKIM has detected a fault during an internal self test.
RAM FAILURE
When Monitored:
With the ignition on.
Set Condition:
The RAM fails a test that checks the RAM’s ability to retain memory.
SERIAL LINK INTERNAL FAULT
When Monitored:
With the ignition on.
Set Condition:
The SKIM fails an internal J1850 communication self test.
STACK OVERFLOW FAILURE
When Monitored:
With the ignition on.
Set Condition:
The microcontroller has exceeded its stack space limit.
344
VEHICLE THEFT/SECURITY
POSSIBLE CAUSES
SKIM INTERNAL DTC FAILURE
TEST
ACTION
APPLICABILITY
1
Note: This trouble code indicates an internal SKIM fault.
With the DRB III, read and record the SKIM DTCs and then erase the SKIM DTCs
Perform 10 ignition key cycles, leaving the ignition key on for a minimum of 90
seconds per cycle.
With the DRB III, read the SKIM DTCs.
Did the same SKIM DTC return?
All
Yes
→
Replace and program the Sentry Key Immobilizer Module in
accordance with the Service Information.
No
→
Test Complete.
345
VEHICLE THEFT/SECURITY
ANTENNA FAILURE —
Continued
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 PCM due to a SKIM reset, or during SECRET KEY transfers to the PCM.
Set Condition:
When the SKIM does not receive an expected PCI BUS message trans-
mission acknowledgement from the PCM after 3 transmit attempts.
POSSIBLE CAUSES
INTERMITTENT WIRING HARNESS PROBLEM
WIRING HARNESS INSPECTION
SKIM/PCM
TEST
ACTION
APPLICABILITY
1
NOTE: Ensure the PCM has proper power and ground connections before
continuing.
With the DRB III, read and record the SKIM DTC’s then erase the SKIM DTC’s.
Turn the ignition off.
Wait 2 minutes.
Turn the ignition on.
With the DRB III, read the SKIM DTC’s.
Does the DRB III display the DTC that was previously erased?
All
Yes
→
No
→
346
VEHICLE THEFT/SECURITY
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.
No
→
3
NOTE: Before proceeding it will be necessary to obtain the SKIM PIN
number.
Turn the ignition on.
With the DRB III, display and erase all PCM and SKIM DTC’s.
Perform 5 ignition key cycles, leaving the ignition key on for a minimum of 90 seconds
per cycle.
With the DRB III, read the SKIM DTC’s.
Does the code appear?
All
Yes
→
Replace and program the Powertrain Control Module in accor-
dance with the Service Information.
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.
No
→
Test Complete.
347
VEHICLE THEFT/SECURITY
PCM STATUS FAILURE —
Continued
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