Chrysler 300/300 Touring/300C, Dodge Magnum. Manual — part 712
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When Monitored:
With the CAN ignition status as IGN_RUN, the module tries to detect potentially damaging events and moni-
tors the CAN Bus for the X Impact messages (crash event causing one or more airbag or pretensioner to
deploy) or upon detecting an Offset Event (if equipped).
•
Set Condition:
This DTC will set if the module detects a potentially damaging event or the Impact messages from the CAN
Bus input.
Possible Causes
B1BA7-OCS VERIFICATION REQUIRED DTC ACTIVE
Diagnostic Test
1.
CHECK FOR OCCUPANT CLASSIFICATION MODULE (OCM) ACTIVE DTCs:
•
ACTIVE INTERNAL FAULTS
•
IGNITION FAULTS
•
BATTERY FAULT
•
SEAT WEIGHT SENSOR DTCs
NOTE: Ensure the battery is fully charged.
NOTE: 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 Classification Module (OCM) DTCs.
Does the scan tool display any active DTCs listed above?
Yes
>> Diagnose and repair the DTCs. Refer to the Table of Contents in this Section for a complete list of
symptoms.
No
>> Go To 2
2.
VERIFY THAT DTC B1BA7-OCCUPANT CLASSIFICATION SYSTEM VERIFICATION REQUIRED IS ACTIVE
With the scan tool, read OCM DTCs.
Does the scan tool display active: B1BA7-OCCUPANT CLASSIFICATION SYSTEM VERIFICATION
REQUIRED?
Yes
>> Go To 3
No
>> Go To 4
3.
PERFORM OCCUPANT CLASSIFICATION MODULE SYSTEM VERIFICATION TEST
Verify that the passenger seat is empty.
Perform a visual inspection of the Passenger Seat, wiring, connectors, risers, sensors, and retainers. Look for
chafed, pierced, pinched, or partially broken wires and broken, bent, pushed out, spread, corroded, or contaminated
terminals. Also, inspect for damaged or bent risers, a damaged or bent seat and seat structure, damaged or bent
seat tracks, and damaged or loose sensors. Repair or replace any problems found in accordance with the service
information and then continue this procedure. Refer to 23 - BODY/SEATS.
NOTE: Failure to follow the test instructions or aborting the test will cause faults to set when performing
the Occupant Classification Module System Verification Test. To prevent faults due to process errors: Verify
That All Tests Steps That Led You Here Were Performed As Directed; Verify That The Ignition Is In Run; Wait
30 Seconds After Changing The Seat Weight Before Proceeding To Allow The System To Stabilize; Only
Press Scan Tool Buttons When Directed To Do So; and Perform The Occupant Classification Module System
Verification Test To Completion.
With the scan tool in OCM, select More Options, select System Tests, and select Occupant Classification Module
System Verification Test. Run the test by following the instructions displayed on the scan tool. When the test is
complete, proceed as follows.
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With the scan tool, read OCM DTCs.
Does the scan tool display active: B1BA7-OCCUPANT CLASSIFICATION SYSTEM VERIFICATION
REQUIRED?
Yes
>> Perform the *Diagnosis/Checkout Procedure For Seat Weight Sensors.
Perform OCS VERIFICATION TEST - VER 1.
No, But Other DTCs Present
Diagnose and repair the DTCs. Refer to the Table of Contents in this Section for a complete list of
symptoms.
No Active DTCs Present
Perform OCS VERIFICATION TEST - VER 1.
4.
CHECK FOR ACTIVE DTC B1BA8–OCM SYSTEM OUT OF CALIBRATION/NOT CALIBRATED
With the scan tool, read OCM DTCs.
Does the scan tool display active: B1BA8-OCM SYSTEM OUT OF CALIBRATION/NOT CALIBRATED?
Yes
>> Diagnose and repair the DTC. Refer to the Table of Contents in this Section for a complete list of symp-
toms.
No
>> Perform OCS VERIFICATION TEST - VER 1.
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B1BA8-OCM SYSTEM OUT OF CALIBRATION/NOT CALIBRATED
For a complete wiring diagram Refer to Section 8W.
•
When Monitored:
While the CAN bus ignition status is IGN_RUN or status not available.
•
Set Condition:
This DTC will set if the module or the technician initiated a system verification (rezero) process and the system
verification process was not successfully completed.
Diagnostic Test
1.
PERFORM OCCUPANT CLASSIFICATION MODULE SYSTEM VERIFICATION TEST
Verify that the passenger seat is empty.
Perform a visual inspection of the Passenger Seat, wiring, connectors, risers, sensors, and retainers. Look for
chafed, pierced, pinched, or partially broken wires and broken, bent, pushed out, spread, corroded, or contaminated
terminals. Also, inspect for damaged or bent risers, a damaged or bent seat and seat structure, damaged or bent
seat tracks, and damaged or loose sensors. Repair or replace any problems found in accordance with the service
information and then continue this procedure. Refer to 23 - BODY/SEATS.
NOTE: Failure to follow the test instructions or aborting the test will cause faults to set when performing
the Occupant Classification Module System Verification Test. To prevent faults due to process errors: Verify
That All Tests Steps That Led You Here Were Performed As Directed; Verify That The Ignition Is In Run; Wait
30 Seconds After Changing The Seat Weight Before Proceeding To Allow The System To Stabilize; Only
Press Scan Tool Buttons When Directed To Do So; and Perform The Occupant Classification Module System
Verification Test To Completion.
With the scan tool in OCM, select More Options, select System Tests, and select Occupant Classification Module
System Verification Test. Run the test by following the instructions displayed on the scan tool. When the test is
complete, proceed as follows.
With the scan tool, read OCM DTCs.
Does the scan tool display any active DTCs?
Yes - B1BA8 is Active
Perform the *Diagnosis/Checkout Procedure For Seat Weight Sensors.
Yes Other DTCs Present
Diagnose and repair the DTCs. Refer to the Table of Contents in this Section for a complete list of
symptoms.
No Active DTCs Present
Perform OCS VERIFICATION TEST - VER 1.
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B1BB8-SRS WARNING INDICATOR STATUS MISMATCH
For a complete wiring diagram Refer to Section 8W.
•
When 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) Can 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.
NOTE: 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.
Does the scan tool display and active Instrument Cluster DTCs?
Yes
>> Refer to symptom list for problems related to the Instrument Cluster.
Perform the ORC VERIFICATION TEST-VER 1.
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 Clus-
ter bulb check.
Did the Data Display information match the operation of the lamp?
Yes
>> Go To 4
No
>> Replace the Instrument Cluster in accordance with the service information.
Perform the ORC VERIFICATION TEST-VER 1.
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RESTRAINTS - ELECTRICAL DIAGNOSTICS
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