Cluster Messages Mismatch
CLUSTER MESSAGE MISMATCHWHEN MONITORED
After the Instrument Cluster bulb check is completed, the ORC compares the lamp request by the ORC (On or Off) and the Lamp On request by the Instrument Cluster (On or Off) bus messages. Each message is transmitted one time per second or when a change in the lap state occurs.
SET CONDITION
If the lamp request by the ORC (On or Off), and the Lamp On by the Instrument Cluster (On or Off), messages do not match, this code will set.
POSSIBLE CAUSES
- Occupant restraint controller, instrument cluster message mismatch
- Instrument cluster
- Occupant restraint controller
Diagnostic Test
1. CHECK FOR AN ACTIVE DTC
NOTE:
- Ensure the battery is fully charged.
- When reconnecting Airbag system components, the ignition must be turned off and the battery must be disconnected.
Turn the ignition on, then off, and then on again.
With the scan tool, read Occupant Restraint Controller (ORC) DTCs.
Select DTC type.
Active
Go To 2
Stored
Go To 5
2. CHECK FOR ACTIVE INSTRUMENT CLUSTER DTCs
With the scan tool, read Instrument Cluster DTCs.
Q: Does the scan tool display any active Instrument Cluster DTCs?
YES: Perform the ORC VERIFICATION TEST-VER 1. Occupant Restraint Controller (ORC) Verification Test
NO: Go To 3
3. CHECK THE ORC AND INSTRUMENT CLUSTER FOR LAMP STATUS
With the scan tool view the Instrument Cluster Data Display.
Cycle the ignition key and observe the SRS Indicator Lamp Request status (Set/Not Set) during the Instrument Cluster bulb check.
With the scan tool view the ORC Data Display.
Cycle the ignition key and observe the SRS Indicator Lamp Status (Lamp On/Lamp Off) during the Instrument Cluster bulb check.
Q: Did the Data Display information match the operation of the lamp?
YES: Go To 4
NO: Replace the Instrument Cluster. Perform the ORC VERIFICATION TEST-VER 1. Occupant Restraint Controller (ORC) Verification Test
4. REPLACE THE OCCUPANT RESTRAINT CONTROLLER
WARNING:
- TO AVOID PERSONAL INJURY OR DEATH, TURN THE IGNITION OFF, DISCONNECT THE BATTERY AND WAIT TWO MINUTES BEFORE PROCEEDING.
- IF THE OCCUPANT RESTRAINT CONTROLLER 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 Occupant Restraint Controller. Perform the ORC VERIFICATION TEST-VER 1. Occupant Restraint Controller (ORC) Verification Test
5. TEST FOR INTERMITTENT CONDITION
With the scan tool, record and erase all DTCs 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 scan tool, 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 the active DTC in question.
Q: Does the scan tool display any ACTIVE DTCs?
YES: Select appropriate symptom from Symptom List.
NO: No problem found at this time. Erase all codes before returning vehicle to customer.