Component Testing

B227 Gear Position Sensor

1. Key OFF. Disconnect the connector at the B227 gear position sensor.
2. Remove the B227 gear position sensor from the transfer case.
3. Connect the B227 gear position sensor.
4. Verify that the Transfer Case Range Position Sensor parameter sweeps between -146° and 204° while rotating the center locating tab of the B227 gear position sensor.
   • If the Transfer Case Range Position Sensor parameter does NOT sweep between -146° and 204° 

     Replace the B227 gear position sensor. Refer to Transfer Case Two/Four Wheel Drive Actuator Position Sensor Replacement .

   • If the Transfer Case Range Position Sensor parameter DOES sweep between -146° and 204° 
5. B227 gear position sensor OK.