Diagnostic Procedure

WARNING: This page is about a different car, the 2004 Dodge Pickup and 2004 Dodge Cab & Chassis. However, it is still accessible from the selected car via links, so may be relevant.

NOTE: Refer to VERIFICATION TESTS for appropriate verification test procedures.

Ignition on, engine not running.
With the DRBIII®, read the PCM DTCs and record the related Freeze Frame data.

Is the Good Trip Counter displayed and equal to zero?
1. Yes --> Go To 2
2. No --> Refer to the SYMPTOM: INTERMITTENT CONDITION Symptom (Diagnostic Procedure).
  Perform SKIS VERIFICATION .
Ignition on, engine not running.
With the DRBIII®, attempt to communicate with the SKIM.

NOTE: This test will indicate if the Bus is operational from the DLC to the SKIM.

Was the DRBIII® able to communicate with the SKIM?
1. Yes --> Go To 3
2. No --> Refer to Symptom: *NO RESPONSE FROM SENTRY KEY IMMOBILIZER MODULE .
  Perform SKIS VERIFICATION .
Turn the ignition off.
Disconnect the PCM harness connectors.

Disconnect the SKIM harness connector.

Measure the resistance of the PCI Bus circuit between the PCM harness connector and the SKIM harness connector.

Is the resistance below 5.0 ohms?
1. Yes --> Go To 4
2. No --> Repair the open in the PCI Bus circuit between the PCM and the SKIM.
  Perform SKIS VERIFICATION .
Replace the Sentry Key Immobilizer Module in accordance with the Service Information.
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?
1. Yes --> Replace and program the Powertrain Control Module per Service Information.
  Perform SKIS VERIFICATION .
2. No --> Test Complete.