Diagnostic Procedure
DIAGNOSTIC INFORMATION AND PROCEDURES CHART (PASSENGER AIRBAG ON - OFF SWITCH OPEN)
| TEST | ACTION | APPLICABILITY |
|---|---|---|
| 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. SELECT ACTIVE or STORED DTC: 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.
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| 2 | Is this vehicle equipped with a Passenger Airbag On - Off Switch? Yes --> Go To 3 No --> With the DRBIII® in MISCELLANEOUS, read the Configure for Airbag ON - OFF Switch current status. Enter the number 1 and press enter to re configure the ACM for NO AIRBAG ON/OFF SWITCH. Perform AIRBAG VERIFICATION TEST - VER 1 . |
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| 3 | Gain access to the Passenger Airbag On - Off Switch connector. Is the Passenger Airbag On - Off Switch connected to the dash harness? Yes --> Go To 4 No --> Connect the Passenger Airbag On - Off switch to the dash harness connector. Perform AIRBAG VERIFICATION TEST - VER 1 . |
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| 4 |
WARNING:
TO AVOID PERSONAL INJURY OR DEATH, TURN THE IGNITION OFF, DISCONNECT THE BATTERY AND WAIT TWO MINUTES BEFORE PROCEEDING. Disconnect the Passenger Airbag On - Off Switch.
NOTE:
Check connectors - Clean and repair as necessary. Measure the PAB On - Off Switch resistance between terminals 1 and 2 in both switch positions.The switch resistance specifications are: ON position = 175.0 to 190.0 ohms and OFF position = 820.0 to 870.0 ohms.Is the resistance within range for both switch positions?Yes --> Go To 5No --> Replace the Passenger Airbag ON - OFF Switch in accordance with the service information.Perform AIRBAG VERIFICATION TEST - VER 1 . |
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| 5 | Disconnect the Airbag Control Module connector(s).
NOTE:
Check connectors - Clean and repair as necessary.
WARNING:
IF THE AIRBAG CONTROL MODULE IS DROPPED AT ANY TIME, IT MUST BE REPLACED. Connect the appropriate Load Tool Adaptor to the Airbag Control Module connector. Measure the resistance of the PAB MUX Switch Sense between the ACM Adaptor and the PAB On - Off Switch connector. Measure the resistance of the PAB MUX Switch Return circuit between the ACM Adaptor and the PAB On - Off Switch connector. Is the resistance below 5.0 ohms on both circuits? Yes --> Go To 6 No --> Repair the open Passenger Airbag MUX Switch circuit(s). Perform AIRBAG VERIFICATION TEST - VER 1 . |
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| 6 |
WARNING:
TO AVOID PERSONAL INJURY OR DEATH, TURN THE 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
WARNING:
MAKE SURE THE BATTERY IS DISCONNECTED, THEN WAIT TWO MINUTES BEFORE PROCEEDING. Replace the Airbag Control Module in accordance with Service Instructions. Perform AIRBAG VERIFICATION TEST - VER 1 . |
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| 7 | With the DRBIII®, record and erase all DTC's from all Airbag modules. If equipped with Passenger Airbag On - Off switch, read the DTC's in all switch positions. If any ACTIVE codes are present they must be resolved before diagnosing any stored codes.
WARNING:
TO AVOID PERSONAL INJURY OR DEATH, TURN THE IGNITION OFF, DISCONNECT THE BATTERY AND WAIT TWO MINUTES BEFORE PROCEEDING. Using the wiring diagram/schematic as a guide, inspect the wiring and connectors. Look for chaffed, pierced, pinched, or partially broken wires and broken, bent, pushed out, spread, corroded, or contaminated terminals. The following additional checks may assist you in identifying a possible intermittent problem. Reconnect any disconnected components and harness connector.
WARNING:
TO AVOID PERSONAL INJURY OR DEATH, TURN THE IGNITION ON, THEN RECONNECT THE BATTERY. With the DRBIII® monitor active codes as you work through the following steps.
WARNING:
TO AVOID PERSONAL INJURY OR DEATH, MAINTAIN A SAFE DISTANCE FROM ALL AIRBAGS WHILE PERFORMING THE FOLLOWING STEPS. Wiggle the wiring harness and connectors of the related airbag circuit or component. If codes are related to the Driver Airbag circuits, rotate the steering wheel from stop to stop. IF only stored codes return continue the test until the problem area has been isolated In the previous steps you have attempted to recreate the conditions responsible for setting active DTC in question. Are any ACTIVE DTCs present? Yes --> Select appropriate symptom. No --> No problem found at this time. Erase all codes before returning vehicle to customer. |
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