Diagnostic Test

TEST FOR INTERMITTENT CONDITION
1. Turn the ignition on.
2. With the scan tool, record and erase DTCs.
3. Move the seat switch rear vertical position three times.
4. With the scan tool, read DTCs.
  Does the scan tool display B1D76-SEAT REAR VERTICAL POSITION SENSOR CIRCUIT HIGH?
  
  Yes
  - Go to Step 2.
  No
  - The conditions that caused this code to set are not present at this time. Using Figure as a guide, inspect the wiring and connectors.
  - Perform POWER SEAT SYSTEM VERIFICATION TEST. See POWER SEAT SYSTEM VERIFICATION TEST .
CHECK THE (G402) DRIVER SEAT REAR VERTICAL POSITION SENSE VOLTAGE
1. Disconnect the Rear Driver Vertical Seat Adjuster Motor.
  NOTE: Check connectors - Clean and repair as necessary.
2. With the scan tool erase DTCs
3. Move the seat switch in the both rear vertical positions three times.
4. With the scan tool, read DTCs.
  Does the same DTC reset?
  
  No
  - Inspect the position sense wire for a possible intermittent short to voltage from another circuit, if OK replace the Rear Driver Vertical Seat Adjuster Motor assembly.
  - Perform POWER SEAT SYSTEM VERIFICATION TEST. See POWER SEAT SYSTEM VERIFICATION TEST .
  Yes
  - Inspect the position sense wire for a possible short to voltage from another circuit, if OK replace the Memory Seat Module.
  - Perform POWER SEAT SYSTEM VERIFICATION TEST. See POWER SEAT SYSTEM VERIFICATION TEST .