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)

Diagnostic Test

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

NOTE:
- Ensure the battery is fully charged.
- 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.

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 2

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

With the scan tool, erase OCM DTCs.
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 3
NO: Perform OCS VERIFICATION TEST - VER 1. OCS Verification Test

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