B1C26

B1C26-PASSENGER SEAT WEIGHT SENSOR 1-RIGHT REAR CONFIGURATION MISMATCH






- When Monitored:

With the ignition on, the Occupant Classification Module (OCM) monitors the position of each Seat Weight Sensor. The sensor identification is mapped to the sensor position during the module re-zero process or OCM SYSTEM VERIFICATION TEST.

- Set Condition:

This DTC will set if the OCM detects one or more new Seat Weight Sensors or if the existing sensors are moved to a new position.

- Possible Causes:






1. PERFORM OCM SYSTEM VERIFICATION TEST

NOTE: Make sure that the battery is fully charged.

1. Turn the ignition on.

2. Verify that the passenger seat is empty.

NOTE: Failure to follow the test instructions or aborting the test causes 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.

3. With the scan tool in OCM, select More Options, 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 completes, wait two minutes and the proceed as follows.

4. With the scan tool, read the OCM DTC.

Does the scan tool display active B1C26-PASSENGER SEAT WEIGHT SENSOR 1-RIGHT REAR CONFIGURATION MISMATCH DTC?

YES: Go to 2.

NO - Other DTCs Present: Diagnose and repair the DTC.

No Active DTCs Present: Perform the OCS VERIFICATION TEST. Occupant Classification Module (OCM) System Verification Test

2. VERIFY SENSOR IS TIGHTENED TO SPECIFICATION

WARNING: Turn the ignition off, disconnect the 12-volt battery and wait two minutes before proceeding. Failure to follow these instructions may result in possible serious or fatal injury.

1. Verify that the passenger seat is empty.

Caution: To avoid seat weight sensor damage, the Strain Gage Alignment Tool 9698A must be used to when loosening or tightening the sensor retainers.

2. Make sure all of the Seat Weight Sensor mounting screws are tightened to torque specification.

WARNING: Turn the ignition on, then reconnect the 12-volt battery. Failure to follow these instructions may result in possible serious or fatal injury.

3. With the scan tool in OCM, select More Options, 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 completes, wait two minutes and then proceed as follows.

4. With the scan tool, read the OCM DTC.

Does the scan tool display active B1C26-PASSENGER SEAT WEIGHT SENSOR 1-RIGHT REAR CONFIGURATION MISMATCH DTC?

YES: Perform the Diagnosis and Checkout Procedure for Seat Weight Sensors.

No - Other DTCs Present: Diagnose and repair the DTC.

No Active DTCs Present: Perform the OCS VERIFICATION TEST. Occupant Classification Module (OCM) System Verification Test