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Home >> Jeep >> 2004 >> Wrangler SE, Automatic >> Repair and Diagnosis >> Accessories & Equipment >> Gauges & Instrument Panels >> Body Diagnostic Procedures >> Diagnostic Information And Procedures >> Airbag >> Symptom: PASSENGER AIRBAG ON - OFF SWITCH SHORT TO GROUND >> Diagnostic Procedure

Diagnostic Procedure

PASSENGER AIRBAG ON - OFF SWITCH SHORT TO GROUND - DIAGNOSTIC PROCEDURE

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:
  1. ACM - ACTIVE DTC Go To 2
  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?
  1. Yes : Go To 3
  2. 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 .

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3
WARNING: 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 & 3 and 2 & 3.Is the resistance below 10K ohms on either test?
  1. Yes : Replace the Passenger Airbag ON - OFF Switch in accordance with the service information.

    Perform AIRBAG VERIFICATION TEST .

  2. No : Go To 4
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4 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 = 820.0 870.0 ohms.
Is the resistance within range for both switch positions?
  1. Yes : Go To 5
  2. No : Replace the Passenger Airbag ON - OFF Switch in accordance with the service information.

    Perform AIRBAG VERIFICATION TEST .

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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 circuit between the PAB On - Off Switch connector and ground.
Is the resistance below 10K ohms?
  1. Yes : Repair the Passenger Airbag MUX Switch Sense circuit short to ground.

    Perform AIRBAG VERIFICATION TEST .

  2. No : Go To 6
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6 Measure the resistance between the PAB MUX Switch Sense circuit and the PAB MUX Switch Return circuit at the PAB On - Off Switch connector.
Is the resistance on either circuits below 10K ohms?
  1. Yes : Repair the Passenger Airbag MUX Switch circuits shorted together.

    Perform AIRBAG VERIFICATION TEST .

  2. No : Go To 8 Perform AIRBAG VERIFICATION TEST .
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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.
You have just attempted to simulate the condition that initially set the trouble code message.
Did the DTC become active?
  1. Yes : Select appropriate symptom from Symptom List.
  2. No : No problem found at this time. Erase all codes before returning vehicle to customer.
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8
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.
  1. Repair: Replace the Airbag Control Module in accordance with Service Instructions. Perform AIRBAG VERIFICATION TEST .
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