Chrysler Voyager. Manual — part 118

POSSIBLE CAUSES

SKIM INTERNAL DTC FAILURE

TEST

ACTION

APPLICABILITY

1

Note: This trouble code indicates an internal SKIM fault.
With the DRBIII

t, 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 DRBIII

t , 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.
Perform SKIS VERIFICATION.

No

→ Test Complete.

471

SENTRY KEY IMMOBILIZER

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 DRBIII

t, read and record the SKIM DTCs then erase the SKIM DTCs.

Turn the ignition off.
Wait 2 minutes.
Turn the ignition on.
With the DRBIII

t, read the SKIM DTCs.

Does the DRBIII

t display the DTC that was previously erased?

All

Yes

→ Go To 2

No

→ Go To 4

472

SENTRY KEY IMMOBILIZER

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 SKIS VERIFICATION.

No

→ Go To 3

3

NOTE: Before proceeding it will be necessary to obtain the SKIM PIN.
Turn the ignition on.
With the DRBIII

t, 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 DRBIII

t, read the SKIM DTCs.

Does the code appear?

All

Yes

→ Replace and program the Powertrain Control Module in accor-

dance with the Service Information.
Perform SKIS VERIFICATION.

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 SKIS VERIFICATION.

No

→ Test Complete.

473

SENTRY KEY IMMOBILIZER

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 PCM due to a SKIM or PCM reset.

Set Condition:

When a PCM STATUS message with a Valid Key status is not received by

the SKIM within 3.5 seconds of transmitting the last Valid Key Code message to the PCM.

VIN MISMATCH

When Monitored:

With the ignition on.

Set Condition:

When the VIN received from the PCM does not match the VIN stored in

the SKIM’s EEPROM.

POSSIBLE CAUSES

VERIFYING PCM VIN

REPLACE SKIM AND CHECK DTC’S

INTERMITTENT WIRING HARNESS PROBLEM

PCM

TEST

ACTION

APPLICABILITY

1

With the DRBIII

t, erase the SKIM DTCs.

Turn the ignition off.
Wait 10 seconds.
Turn the ignition on and wait 2 minutes.
With the DRBIII

t, read the SKIM DTCs.

Does the DRBIII

t display the DTC that was previously erased?

All

Yes

→ Go To 2

No

→ Go To 4

474

SENTRY KEY IMMOBILIZER