Diagnostic Test

TEST FOR INTERMITTENT CONDITION
1. Turn the ignition on.
2. With the scan tool, record and erase DTC's
3. Move the Seat Switch in the Front Vertical position three times.
4. With the scan tool, read DTC's.
  Does the scan tool display B1D71-SEAT FRONT VERTICAL POSITION SENSOR CIRCUIT LOW?
  
  Yes
  - Go to step 2
  No
  - The conditions that caused this code to set are not present at this time. Using the SYSTEM WIRING DIAGRAMS as a guide, inspect the wiring and connectors.
  - Perform POWER SEAT SYSTEM VERIFICATION TEST. See DTC-Based Diagnostics/MODULE, Memory Seat (MSMD) - Standard Procedure .
CHECK THE (G404) DRIVER SEAT FRONT VERTICAL POSITION SENSE VOLTAGE

Fig 1: Checking Driver Seat Front Vertical Position Sense Voltage
Courtesy of CHRYSLER LLC
1. Disconnect the Front Driver Vertical Seat Adjuster Motor.
  NOTE: Check connectors - Clean and repair as necessary.
2. Move the seat switch in the front vertical position during the next step.
3. Using a 12-volt test light connect one lead to the (G404) Driver Seat Front Vertical Position Sense circuit and the other lead to the Driver Seat Front Vertical Sensor Ground at the Front Driver Seat Adjuster Motor connector.
  Does the test light illuminate for approximately two seconds then turn off with the seat switch engaged?
  
  Yes
  - Replace the Front Driver Seat Adjuster Motor assembly in accordance with the Service Information.
  - Perform POWER SEAT SYSTEM VERIFICATION TEST. See DTC-Based Diagnostics/MODULE, Memory Seat (MSMD) - Standard Procedure .
  No
  - Go to step 3
CHECK THE (G404) DRIVER SEAT FRONT VERTICAL POSITION SENSE WIRE FOR A SHORT TO GROUND

Fig 2: Checking Driver Seat Front Vertical Position Sense Wire For A Short To Ground
Courtesy of CHRYSLER LLC
1. Disconnect the Memory Seat Module C3 connector.
  NOTE: Check connectors - Clean and repair as necessary.
2. Measure the resistance of the (G404) Driver Seat Front Vertical Position Sense wire at the Front Driver Vertical Seat Adjuster Motor connector to ground.
  Is the resistance below 1000.0 ohm?
  
  Yes
  - Repair the (G404) Driver Seat Front Vertical Position Sense circuit for a short to ground.
  - Perform POWER SEAT SYSTEM VERIFICATION TEST. See DTC-Based Diagnostics/MODULE, Memory Seat (MSMD) - Standard Procedure .
  No
  - Replace the Memory Seat Module in accordance with the Service Information.
  - Perform POWER SEAT SYSTEM VERIFICATION TEST. See DTC-Based Diagnostics/MODULE, Memory Seat (MSMD) - Standard Procedure .