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 front vertical position three times.
4. With the scan tool, read DTCs.
  Does the scan tool display B1D72-SEAT FRONT 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 (G404) DRIVER SEAT FRONT VERTICAL POSITION SENSE VOLTAGE
1. Disconnect the Front 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 front 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 another circuit, if OK replace the Front 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 another circuit, if OK replace the Memory Seat Module.
  - Perform POWER SEAT SYSTEM VERIFICATION TEST. See POWER SEAT SYSTEM VERIFICATION TEST .