B1B91

B1B91-DRIVER SEAT TRACK POSITION SENSOR CONFIGURATION MISMATCH

B1B91 - Driver Seat Track Position Sensor Configuration Mismatch:

WHEN MONITORED

With the ignition on the OCM monitors the Seat Track Position Sensors circuits.

SET CONDITION

If the module detects current on the Seat Track Position Sensors circuits and the module is not configured for STPS.

POSSIBLE CAUSES

- Sensors
- Wiring
- Occupant classification module (OCM)
- Occupant Restraint Controller (ORC)

DIAGNOSTIC TEST

1. IDENTIFYING VEHICLE EQUIPMENT

NOTE: Ensure the battery is fully charged.

NOTE: The Seat Track Position Sensor(s) will be wired to the Occupant Restraint Controller (ORC) if the vehicle is not equipped with the Occupant Classification Module (OCM).

Turn the ignition on.
With the scan tool, read ORC and if equipped OCM active DTCs.

Q: Select the module reporting the Seat Track Position Sensor DTC (s)

ORC - Go To 5
OCM - Go To 2


2. CHECK FOR ACTIVE INTERNAL FAULTS, IGNITION FAULTS, & BATTERY FAULTS IN THE OCCUPANT CLASSIFICATION MODULE (OCM)

With the scan tool, read Occupant Classification Module (OCM) DTCs.

Q: Does the scan tool display any active DTCs relating to internal faults, ignition faults, or battery faults?

YES: Diagnose and repair the DTCs.
NO: Go To 3

3. VERIFY THAT B1B91-DRIVER SEAT TRACK POSITION SENSOR CONFIGURATION MISMATCH IS ACTIVE

Turn the ignition off, wait 10 seconds and then turn the ignition on.
Wait 2 minutes, and then with the scan tool, read OCM DTCs.

Q; Does the scan tool display active: B1B91-DRIVER SEAT TRACK POSITION SENSOR CONFIGURATION MISMATCH?

YES: Go To 4
NO: Perform the OCS VERIFICATION TEST-VER. 1. OCS Verification Test

4. VERIFY WIRING

Turn the ignition off.
Inspect the driver and passenger seat wiring for Seat Position Sensors.

Q: Are Seat Position Sensor(s) present?

YES:

WARNING: To avoid personal injury or death, turn the ignition off, disconnect the battery and wait two minutes before proceeding.
WARNING: If the Occupant Classification Module (OCM) 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.

Replace the OCM.
Perform the OCS VERIFICATION TEST-VER. 1. OCS Verification Test

NO: Perform the OCS VERIFICATION TEST-VER. 1. OCS Verification Test

5. CHECK FOR ACTIVE INTERNAL FAULTS, IGNITION FAULTS, & BATTERY FAULTS IN THE OCCUPANT RESTRAINT CONTROLLER (ORC)

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

Q: Does the scan tool display any active DTCs relating to internal faults, ignition faults, or battery faults?

YES: Diagnose and repair the DTCs.
NO: Go To 6

6. VERIFY THAT B1B91-DRIVER SEAT TRACK POSITION SENSOR CONFIGURATION MISMATCH IS ACTIVE

With the scan tool, erase ORC DTCs.
Turn the ignition off, wait 10 seconds and then turn the ignition on.
Wait 2 minutes, and then with the scan tool, read ORC DTCs.

Q; Does the scan tool display active: B1B91-DRIVER SEAT TRACK POSITION SENSOR CONFIGURATION MISMATCH?

YES: Go To 7
NO: Perform ORC VERIFICATION TEST - VER 1. Occupant Restraint Controller (ORC) Verification Test


7. VERIFY WIRING

Turn the ignition off.
Inspect the driver and passenger seat wiring for Seat Position Sensors.

Q: Are Seat Position Sensor(s) present?

YES:

WARNING: To avoid personal injury or death, turn the ignition off, disconnect the battery and wait two minutes before proceeding.
WARNING: If the Occupant Restraint Controller (ORC) 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.

Replace the ORC.
Perform ORC VERIFICATION TEST - VER 1. Occupant Restraint Controller (ORC) Verification Test


NO: Perform ORC VERIFICATION TEST - VER 1. Occupant Restraint Controller (ORC) Verification Test