Dodge Caliber. Manual - part 459

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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 Impact messages (crash event causing one or more airbag or pretensioner to deploy)
or upon detecting an Offset Event (if equipped).

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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

CHECK FOR OCCUPANT CLASSIFICATION MODULE (OCM) ACTIVE DTCs:

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ACTIVE INTERNAL FAULTS

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IGNITION FAULTS

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BATTERY FAULT

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SEAT WEIGHT SENSOR DTCs

NOTE: Ensure the battery is fully charged.
Turn the ignition on.

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.

>> Go To 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

>> Go To 5

PERFORM OCCUPANT CLASSIFICATION MODULE SYSTEM VERIFICATION TEST

Verify that the passenger seat is empty.

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 active: B1BA7-OCCUPANT CLASSIFICATION SYSTEM VERIFICATION
REQUIRED?

Yes

>> Go To 4

No - But Other DTCs Present

RESTRAINTS - ELECTRICAL DIAGNOSTICS

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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 *OCCUPANT CLASSIFICATION MODULE SYSTEM VERIFICATION TEST.

PERFORM SENSOR TORQUE TEST

Verify that the passenger seat is empty.

Verify that all of the Seat Weight Sensor mounting screws are tightened to torque specification. Refer to Group 23
for specification.

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 *OCCUPANT CLASSIFICATION MODULE SYSTEM VERIFICATION TEST.

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 *OCCUPANT CLASSIFICATION MODULE SYSTEM VERIFICATION TEST.

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.

>> Perform *OCCUPANT CLASSIFICATION MODULE SYSTEM VERIFICATION TEST.

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RESTRAINTS - ELECTRICAL DIAGNOSTICS

B1BB8-SRS WARNING INDICATOR STATUS MISMATCH

For a complete wiring diagram Refer to Section 8W.

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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.

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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

CHECK FOR AN ACTIVE DTC B1BB8-SRS WARNING INDICATOR STATUS MISMATCH

NOTE: Ensure the battery is fully charged.
Turn the ignition on, then off, and then on again.

With the scan tool, read Occupant Restraint Controller (ORC) DTCs.

Does the scan tool display active: B1BB8-SRS WARNING INDICATOR STATUS MISMATCH?

Yes

>> Go To 2

>> Go To 5

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 *AIRBAG SYSTEM VERIFICATION TEST - VER 1.

>> Go To 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.

Select SRS Indicator Lamp Status from Bussed Inputs and sect SRS Indicator Lamp request from the Bussed Out-
puts.

Cycle the ignition key and observe the Status of each during the Instrument Cluster bulb check.

Did the Data Display information match each other?

Yes

>> Go To 4

>> Replace the Instrument Cluster in accordance with the service information.

Perform *AIRBAG SYSTEM VERIFICATION TEST - VER 1.

RESTRAINTS - ELECTRICAL DIAGNOSTICS

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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 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 in accordance with the service information.

Perform *AIRBAG SYSTEM VERIFICATION TEST - VER 1.

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 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.

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 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 ques-
tion.

Does the scan tool display any ACTIVE DTCs?

Yes

>> Select appropriate symptom from Symptom List.

>> No problem found at this time. Erase all codes before returning vehicle to customer.

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RESTRAINTS - ELECTRICAL DIAGNOSTICS

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