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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: CLUSTER MESSAGE MISMATCH >> Diagnostic Procedure

Diagnostic Procedure

CLUSTER MESSAGE MISMATCH - DIAGNOSTIC PROCEDURE

TEST ACTION APPLICABILITY
1 Turn the ignition on.
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:
  1. ACM - ACTIVE DTC Go To 2
  2. ACM - STORED DTC Go To 5
    NOTE: When reconnecting Airbag system components, the ignition must be turned off and the battery must be disconnected.
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2 Turn the ignition on.
With the DRBIII®, read the MIC DTCs.
Does the DRBIII® display any active Diagnostic Codes?
  1. Yes : Refer to symptom list for problems related to Instrument Cluster.
  2. No : Go To 3
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3 With the DRBIII® select PASSIVE RESTRAINTS, AIRBAG, MONITOR DISPLAY and WARNING LAMP STATUS.
Cycle the ignition key and observe the LAMP ON BY MIC and LAMP REQ BY ACM monitors after the 6 to 8 second indicator test.
Does the LAMP ON BY MIC and LAMP REQ BY ACM monitors match?
  1. YES : Go To 4
  2. NO : Replace Mechanical Instrument Cluster.

    Perform AIRBAG VERIFICATION TEST .

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4
WARNING: TO AVOID ERSONAL INJURY OR DEATH, 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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5 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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