Diagnostic Procedure
WARNING: This page is about a different car, the 2005 Dodge Stratus and 2005 Chrysler Sebring. However, it is still accessible from the selected car via links, so may be relevant.
DIAGNOSTIC PROCEDURES - U0168-NO SKIM BUS MESSAGES
| TEST | ACTION | APPLICABILITY |
|---|---|---|
| 1 | Turn the ignition on. With the DRBIII®, read the DTCs and record the related Freeze Frame data. Is the Good Trip Counter displayed and equal to zero? Yes --> Go To 2 No --> Go To 5 |
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| 2 | Turn the ignition on. With the DRB III, attempt to communicate with the SKIM.
NOTE:
This test will indicate if the Bus is operational from the DLC to the SKIM. Was the DRB III able to communicate with the SKIM? Yes --> Go To 3 No --> Refer to symptom BUS +/- SIGNAL OPEN FROM SKIM in COMMUNICATION. Perform SKIS VERIFICATION . |
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| 3 | Turn the ignition off. Disconnect the PCM harness connectors. Disconnect the SKIM harness connector.
CAUTION:
DO NOT PROBE THE PCM HARNESS CONNECTORS. PROBING THE PCM HARNESS CONNECTORS WILL DAMAGE THE PCM TERMINALS RESULTING IN POOR TERMINAL TO PIN CONNECTION. INSTALL MILLER SPECIAL TOOL #8815 TO PERFORM DIAGNOSIS. Measure the resistance of the PCI Bus circuit from the SKIM harness connector to the appropriate terminal of special tool #8815. Is the resistance below 5.0 ohms? Yes --> Go To 4 No --> Repair the PCI Bus circuit between the PCM and the SKIM for an open. Perform SKIS VERIFICATION . |
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| 4 | Turn the ignition off. Replace the Sentry Key Immobilizer Module in accordance with the Service Information. Turn the ignition on. Display and erase all PCM and SKIM DTCs. Perform 5 ignition key cycles leaving the ignition key on for 90 seconds per cycle. With the DRB, display PCM DTCs. Does the DRB display the same DTC? Yes --> Replace and program the PCM in accordance with the Service Information. Perform SKIS VERIFICATION . No --> Test Complete. |
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| 5 |
WARNING:
WHEN THE ENGINE IS OPERATING, DO NOT STAND IN A DIRECT LINE WITH THE FAN. DO NOT PUT YOUR HANDS NEAR THE PULLEYS, BELTS OR FAN. DO NOT WEAR LOOSE CLOTHING.
NOTE:
The conditions that set the DTC are not present at this time. The following list may help in identifying the intermittent condition. With the engine running and at normal operating temperature, monitor the DRB parameters related to the DTC while wiggling the wire harness. Look for parameter values to change and/or a DTC to set.Review the DTC When Monitored and Set Conditions. If possible, try to duplicate the conditions under which the DTC was set.Refer to any Technical Service Bulletins (TSBs) that may apply.Visually inspect the related wire harness. Look for any chafed, pierced, pinched, or partially broken wires.Visually inspect the related wire harness connectors. Look for broken, bent, pushed out, or corroded terminals.Were any of the above conditions present?Yes --> Repair as necessary.Perform SKIS VERIFICATION .No --> Test Complete. |
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