Diagnostic Procedure

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

LOSS OF IGNITION RUN - START - DIAGNOSTIC PROCEDURE

TEST	ACTION
1	Turn the ignition on. NOTE: Ensure that the battery is fully charged. NOTE: For the purpose of this test, the AECM and ORC modules will be referred to as an ACM. From the list below, select the appropriate module and DTC type for the this diagnostic trouble code. SELECT ONE: ACM - ACTIVE DTC Go To 2 ACM - STORED DTC Go To 7 NOTE: When reconnecting Airbag system components, the ignition must be turned off and the battery must be disconnected.
2	Turn ignition off. Remove and inspect the Airbag Run - Start Fuse. NOTE: Check connectors - Clean and repair as necessary. Is the Fuse open? Yes --> Go To 3 No --> Go To 4
3	WARNING: TO AVOID PERSONAL INJURY OR DEATH, TURN IGNITION OFF, DISCONNECT THE BATTERY AND WAIT TWO MINUTES BEFORE PROCEEDING. Measure the resistance of the Fused Ignition Switch Output Run-Start circuit between the Airbag Run-Start Fuse and ground.While monitoring the ohmmeter, disconnect each airbag system component on the Run - Start circuit one at a time. NOTE: Refer to the system schematics to identify component(s) on the run-start circuit. Is the resistance above 10K ohms: Yes --> after removing a component? Replace the shorted airbag system component in accordance with Service Instructions and replace the airbag Run - Start fuse. Perform AIRBAG VERIFICATION TEST - VER 1 . No --> after all components are removed? Repair the Fused Ignition Run - Start circuit shorted to ground and replace Airbag Run-Start Fuse. Perform AIRBAG VERIFICATION TEST - VER 1 .
4	Turn the ignition on. Measure the voltage of the Ignition Switch Output circuit between the Airbag Run-Start Fuse and ground. Is the voltage above approximately 4.5 volts? Yes --> Go To 5 No --> Repair the open Ignition Switch Output Run-Start circuit. Perform AIRBAG VERIFICATION TEST - VER 1 .
5	WARNING: TO AVOID PERSONAL INJURY OR DEATH, TURN THE IGNITION OFF, DISCONNECT THE BATTERY AND WAIT TWO MINUTES BEFORE PROCEEDING. Disconnect the Airbag Control Module connector. NOTE: Check connectors - Clean and repair as necessary. Reinstall the previously removed Airbag Run-Start Fuse. WARNING: TO AVOID PERSONAL INJURY OR DEATH, TURN THE IGNITION ON, THEN RECONNECT THE BATTERY. Measure the voltage of the Fused Ignition Switch Output Run-Start Circuit between the Airbag Control Module connector ground.Is the voltage above approximately 4.5 volts? Yes --> Go To 6 No --> Repair open Fused Ignition Switch Output Run-Start circuit. Perform AIRBAG VERIFICATION TEST - VER 1 .
6	WARNING: TO AVOID PERSONAL INJURY OR DEATH, TURN IGNITION OFF, DISCONNECT THE BATTERY AND WAIT TWO MINUTES BEFORE PROCEEDING. WARNING: IF THE AIRBAG CONTROL MODULE IS DROPPED AT ANY TIME, IT MUST BE REPLACED. FAILURE TO TAKE THE PROPER PRECAUTIONS COULD RESULT IN ACCIDENTAL AIRBAG DEPLOYMENT AND PERSONAL INJURY OR DEATH. If there are no possible causes remaining, view repair. Repair Replace the Airbag Control Module in accordance with Service Instructions. Perform AIRBAG VERIFICATION TEST - VER 1 .
7	NOTE: Ensure the battery is fully charged. With the DRBIII(R), record and erase all DTCs from all modules.All active codes must be resolved before diagnosing any stored codes.Maintain a safe distance from all airbags while performing the following steps.With the DRBIII(R) monitor active codes as you work through the system. NOTE: If equipped with Passenger Airbag On-Off switch, read the DTC's in all switch positions. Wiggle the wiring harness and connectors of the appropriate airbag system and rotate the steering wheel from stop to stop. NOTE: Check connectors - Clean and repair as necessary. You have just attempted to simulate the condition that initially set the trouble code message.The following additional checks may assist you in identifying a possible intermittent problem: Visually inspect related wire harness connectors. Look for broken, bent, pushed out, spread, corroded, or contaminated terminals. Visually inspect the related harnesses. Look for chafed, pierced, pinched or partially broken wire. Refer to SYSTEM WIRING DIAGRAMS and Technical Service Bulletins that may apply. Did the DTC become active ? Yes --> Select appropriate symptom from Symptom List. No --> No problem found at this time. Erase all codes before returning vehicle to customer.