Chrysler 300/300 Touring/300C, Dodge Magnum. Manual — part 715
•
When Monitored:
While the CAN bus ignition status is in IGN_RUN, the module checks the sensor input ranges.
•
Set Condition:
If the module detects a seat weight sensor input with the total seat weight below -6.5 kg +/- 1kg.
Possible Causes
DAMAGE TO THE PASSENGER SEAT STRUCTURE, RISER ASSEMBLY, CROSSMEMBERS, SEAT TRACKS,
FLOOR PAN
OBJECT UNDER SEAT OR REAR SEAT FOLDED DOWN AND RESTING AGAINST PASSENGER SEAT
OCCUPANT CLASSIFICATION MODULE (OCM)
Diagnostic Test
1.
TEST CONDITIONS
•
ACTIVE INTERNAL DTC
•
IGNITION DTC
•
BATTERY DTC
•
SEAT WEIGHT SENSOR 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 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.
ACTIVE OR STORED DTC
With the scan tool, read OCM DTCs.
Does the scan tool display active: B1BBC-NEGATIVE SYSTEM WEIGHT?
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: B1BBC-OCS NEGATIVE SYSTEM WEIGHT DTC?
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 - No Active DTCs Present
Perform OCS VERIFICATION TEST - VER 1.
4.
STORED B1BBC-OCS NEGATIVE SYSTEM WEIGHT DTC
With the scan tool, record and erase all DTC’s from all Airbag System 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 min-
utes before proceeding.
Using the wiring diagram/schematic as a guide, inspect the wiring and connectors.
Look for chafed, pierced, pinched, or partially broken wires and broken, bent, pushed out, spread, corroded, or con-
taminated 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.
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 DTC’s present?
Yes
>> Select appropriate symptom from Symptom List.
No
>> No problem found at this time. Erase all codes before returning vehicle to customer.
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B1BBD-OCM CURRENT CONFIGURATION TABLE UNPROGRAMMED
For a complete wiring diagram Refer to Section 8W.
•
When Monitored:
If the Configuration Table is not programmed at the supplier or when the checksum is invalid.
•
Set Condition:
This DTC will set if the module was received unprogrammed from the supplier, the vehicle line was not iden-
tified correctly or if the flash procedure was not completed successfully
Possible Causes
NEW OCCUPANT CLASSIFICATION MODULE
INTERNAL CHECKSUM FAILURE
Diagnostic Test
1.
MODULE CONFIGURATION
Does the scan tool display B1BBD-OCM CURRENT CONFIGURATION TABLE UNPROGRAMMED?
Yes
>> Perform the B1BA7–OCS VERIFICATION REQUIRED diagnostic procedure.
No
>> Replace the Occupant Classification Module in accordance with the service information.
With the scan tool, perform the OCM SYSTEM VERIFICATION procedure.
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B1BC7-DEPLOYMENT DATA RECORD FULL
For a complete wiring diagram Refer to Section 8W.
•
When Monitored:
With the ignition on. The module’s on board diagnostics continuously performs internal circuit tests.
•
Set Condition:
This DTC will set if the module identifies an out of range internal circuit.
Possible Causes
OCCUPANT RESTRAINT CONTROLLER
Diagnostic Test
1.
CHECK FOR ACTIVE DTC
Turn the ignition on.
With the scan tool, read ORC DTCs.
Is the Deployment Data Record Full DTC active?
Yes
>> Go To 2
No
>> Perform the ORC VERIFICATION TEST-VER. 1.
2.
REPLACE THE OCCUPANT RESTRAINT CONTROLLER
WARNING: To avoid personal injury or death, turn the ignition off, disconnect the battery and wait two min-
utes 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.
View repair.
Repair
Replace the Occupant Restraint Controller in accordance with the service information.
Perform the ORC VERIFICATION TEST-VER 1.
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