TEST
ACTION
APPLICABILITY
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 TERMI-
NALS 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?
All
Yes
→ Go To 4
No
→ Repair the open in the PCI Bus circuit between the PCM and the
SKIM.
Perform SKIS VERIFICATION.
4
Connect the PCM harness connectors.
Replace the Sentry Key Immobilizer Module in accordance with the Service Infor-
mation.
Ignition on, engine not running.
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?
All
Yes
→ Replace and program the Powertrain Control Moldule per service
Information.
Perform SKIS VERIFICATION.
No
→ Test Complete.
269
DRIVEABILITY - NGC
U0168-NO SKIM BUS MESSAGE —
Continued