Diagnostic Test

TEST FOR INTERMITTENT CONDITION
1. Turn the ignition on.
2. Using a scan tool, record and erase Diagnostic Trouble Codes (DTCs).
3. Move the seat switch in the recliner adjust position three times.
4. Using a scan tool, read DTCs.
  Does the scan tool display DTC B1D7A-SEAT RECLINER POSITION SENSOR CIRCUIT HIGH?
  
  Yes
  - Go to 2
  No
  - The conditions that caused this code to set are not present at this time. Verify seat harness is routed correctly. Using the wiring diagram/schematic as a guide, inspect the wiring and connectors. Look for chafed, pierced, pinched, or partially broken wires and broken, bent, pushed out, spread, corroded, or contaminated terminals.
  - Perform POWER SEAT SYSTEM VERIFICATION TEST. See DTC-Based Diagnostics/MODULE, Memory Seat (MSMD) - Standard Procedure .
CHECK THE (G403) DRIVER SEAT RECLINER POSITION SENSE CIRCUIT FOR A SHORT TO VOLTAGE WITH MSM DISCONNECTED

Fig 1: Checking Driver Seat Recliner Position Sense Circuit For Short To Voltage With MSM Disconnected
Courtesy of CHRYSLER LLC
1. Turn the ignition off.
2. Disconnect the Driver Recliner Seat Adjuster Motor connector.
3. Disconnect the MSM C2 connector.
  NOTE: Check connectors. Clean and repair as necessary.
4. Turn the ignition on.
5. Measure the voltage of the (G403) Driver Seat Recliner Position Sense circuit between the Driver Recliner Seat Adjuster Motor connector and ground.
  Is there any voltage present?
  
  Yes
  - Repair the (G403) Driver Seat Recliner Position Sense circuit for a short to voltage.
  - Perform POWER SEAT SYSTEM VERIFICATION TEST. See DTC-Based Diagnostics/MODULE, Memory Seat (MSMD) - Standard Procedure .
  No
  - Go to 3
CHECK THE (G403) DRIVER SEAT RECLINER POSITION SENSE CIRCUIT FOR A SHORT TO VOLTAGE WITH MSM CONNECTED

Fig 2: Checking Driver Seat Recliner Position Sense Circuit For Short To Voltage With MSM Connected
Courtesy of CHRYSLER LLC
1. Turn the ignition off.
2. Reconnect the MSM C3 connector.
3. Connect the positive lead of a voltmeter to the (G403) Driver Seat Recliner Position Sense circuit at the Driver Recliner Seat Adjuster Motor connector and the negative lead to a good clean chassis ground.
4. Turn off all vehicle interior and exterior lighting.
5. Mark sure all doors are closed then wait 10 seconds.
6. Measure the voltage of the (G401) Driver Seat Horizontal Position Sense circuit.
  Is there any voltage present?
  
  Yes
  - Check the (G403) Driver Seat Recliner Position Sense circuit for a short to voltage from another circuit and repair as necessary. If circuit is okay, replace the Memory Seat Module (MSM) 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 4
CHECK THE (G403) DRIVER SEAT RECLINER POSITION SENSE CIRCUIT AND THE (G493) DRIVER SEAT RECLINER POSITION SENSOR GROUND CIRCUIT FUNCTION

Fig 3: Checking Driver Seat Recliner Position Sense Circuit & Driver Seat Recliner Position Sensor Ground Circuit Function
Courtesy of CHRYSLER LLC
1. Turn the ignition on.
2. Connect a 12-volt test light between the (G403) Driver Seat Recliner Position Sense circuit and the (G493) Driver Seat Recliner Position Sensor Ground circuit at the Driver Recliner Seat Adjuster Motor connector.
3. Move the seat switch in the recliner adjust position.
  Does the test light illuminate for approximately two seconds then turn off with the seat switch engaged?
  
  Yes
  - Replace the Driver Recliner 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 5
CHECK THE (G403) DRIVER SEAT RECLINER POSITION SENSE CIRCUIT FOR AN OPEN

Fig 4: Checking Driver Seat Recliner Position Sense Circuit For Open
Courtesy of CHRYSLER LLC
1. Turn the ignition off.
2. Disconnect the Memory Seat Module C2 connector.
  NOTE: Check connectors. Clean and repair as necessary.
3. Measure the resistance of the (G403) Driver Seat Recliner Position Sense circuit between the Driver Recliner Seat Adjuster Motor connector and the Memory Seat Module C2 connector.
  Is the resistance below 5.0 Ohms?
  
  Yes
  - Go to 6
  No
  - Repair the (G403) Driver Seat Recliner Position Sense circuit for an open.
  - Perform POWER SEAT SYSTEM VERIFICATION TEST. See DTC-Based Diagnostics/MODULE, Memory Seat (MSMD) - Standard Procedure .
CHECK THE (G493) DRIVER SEAT RECLINER POSITION SENSOR GROUND CIRCUIT FOR AN OPEN

Fig 5: Checking Driver Seat Recliner Position Sensor Ground Circuit For Open
Courtesy of CHRYSLER LLC
1. Measure the resistance of the (G493) Driver Seat Recliner Position Sensor Ground circuit between the Driver Recliner Seat Adjuster Motor connector and the Memory Seat Module C2 connector.
  Is the resistance below 5.0 Ohms?
  
  Yes
  - Replace the Memory Seat Module (MSM) in accordance with the Service Information.
  - Perform POWER SEAT SYSTEM VERIFICATION TEST. See DTC-Based Diagnostics/MODULE, Memory Seat (MSMD) - Standard Procedure .
  No
  - Repair the (G493) Driver Seat Recliner Position Senor Ground circuit for an open.
  - Perform POWER SEAT SYSTEM VERIFICATION TEST. See DTC-Based Diagnostics/MODULE, Memory Seat (MSMD) - Standard Procedure .