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Diagnostic Procedure

WARNING: This page is about a different car, the 2005 Jeep Liberty. However, it is still accessible from the selected car via links, so may be relevant.
DIAGNOSTIC PROCEDURE - PASSENGER AIRBAG OFF INDICATOR CIRCUIT SHORT TO GROUND

TEST ACTION APPLICABILITY
1 Turn the ignition on.
NOTE: Ensure 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 13
NOTE: When reconnecting Airbag system components, the ignition must be turned off and the battery must be disconnected.
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2 Turn Ignition off.
Remove and inspect the Indicator Run-Start Junction Block Fuse.
NOTE: Check connectors - Clean and repair as necessary.

Is the Fuse open?
Yes --> Go To 3
No --> Go To 8		 All
3 Turn the ignition on.
Measure the voltage of the Ignition Switch Output circuit at the indicator Run - Start fuse.
Is the voltage above approximately 6.0 volts?
Yes --> Go To 4
No --> Repair the open Ignition Switch Output Run - Start circuit.
Perform AIRBAG VERIFICATION TEST - VER 1  .
NOTE: Reinstall the fuse after performing this test.
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4 Turn the ignition off.
Measure the resistance of the Fused Ignition Switch Output Run-Start circuit between the PAB Indicator Run - Start Fuse and ground.
Is the resistance below 100 ohms?
Yes --> Go To 5
No --> Replace PAB OFF Indicator Run - Start Fuse.
Perform AIRBAG VERIFICATION TEST - VER 1  .		 All
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.
Connect the appropriate Load Tool ACM Adaptor to the Airbag Control Module connector(s).
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.
Measure the resistance of the Fused Ignition Switch Output Run-Start circuit between the PAB Indicator Run - Start Fuse and ground.Is the resistance below 100 ohms?Yes --> Go To 6No --> Replace the Airbag Control Module in accordance with the Service Information.Perform AIRBAG VERIFICATION TEST - VER 1  .		 All
6 Disconnect the Passenger Airbag On - Off Indicator connector.
Measure the resistance of the Fused Ignition Switch Output Run-Start circuit between the PAB Indicator Run - Start Fuse and ground.
Is the resistance below 100.0 ohms?
Yes --> Repair the Fused Ignition Switch Output Run-Start circuit shorted to ground and the Run-Start Indicator fuse.
Perform AIRBAG VERIFICATION TEST - VER 1  .
No --> Go To 7		 All
7 Measure the resistance of the PAB OFF Indicator Driver circuit between the PAB Indicator connector and ground.
Is the resistance below 100.0 ohms?
Yes --> Repair the Passenger Airbag Off Indicator Driver circuit short to ground.
Perform AIRBAG VERIFICATION TEST - VER 1  .
No --> Replace the Passenger Off Indicator and the indicator run-start fuse.
Perform AIRBAG VERIFICATION TEST - VER 1  .		 All
8 Gain access to the Passenger Airbag On - Off Indicator connector.
Is the Passenger Airbag Off Indicator connected to the dash harness?
Yes --> Go To 9
No --> Connect the Passenger Airbag Off indicator to the dash harness connector.
Perform AIRBAG VERIFICATION TEST - VER 1  .		 All
9 Disconnect the PAB On-Off Indicator connector.
NOTE: Check connectors - Clean and repair as necessary.

Reinstall the previously removed Pab On-Off Indicator 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 PAB On-Off Indicator connector ground.
Is the voltage above 6.0 volts?
Yes --> Go To 10
No --> Repair open Fused Ignition Switch Output Run-Start circuit.
Perform AIRBAG VERIFICATION TEST - VER 1  .		 All
10
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.
Disconnect the Airbag Control Module connector
NOTE: Check connectors - Clean and repair as necessary.
Connect the appropriate Load Tool ACM Adaptor to the Airbag Control Module connector(s).Measure the resistance of the PAB Indicator Driver circuit between the ACM Adaptor and the PAB On - Off Switch connector.Is the resistance below 5.0 ohms?Yes --> Go To 11No --> Repair the open Passenger Airbag Indicator Driver circuit.Perform AIRBAG VERIFICATION TEST - VER 1  .		 All
11
WARNING: TO AVOID PERSONAL INJURY OR DEATH, TURN THE IGNITION OFF, DISCONNECT THE BATTERY AND WAIT TWO MINUTES BEFORE PROCEEDING.
Reconnect the PAB Indicator connector.
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.
Connect a jumper wire between the ACM adaptor PAB Indicator Driver circuit and ground.turn ign onDoes the PAB On-Off Indicator illuminate?Yes --> Go To 12No --> Repair the open Passenger Airbag Indicator.Perform AIRBAG VERIFICATION TEST - VER 1  .		 All
12
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 CAN RESULT IN ACCIDENTAL AIRBAG DEPLOYMENT AND PERSONAL INJURY OR DEATH.
If there are no possible causes remaining, view repair.RepairReplace the Airbag Control Module in accordance with the Service Information.Perform AIRBAG VERIFICATION TEST - VER 1  .
NOTE: When reconnecting Airbag system components, the ignition must be turned off and the battery must be disconnected.
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13 With the DRBIII®, record and erase all DTC's from all Airbag modules.
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 from Symptom List.
No --> No problem found at this time. Erase all codes before returning vehicle to customer.		 All
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