Diagnostic Test

CHECK FOR ACTIVE FAULT WITH SEAT STATIONARY
1. Turn the ignition on.
2. Using a scan tool, record and erase Diagnostic Trouble Codes (DTCs).
3. Cycle the ignition from on to off three times.
4. Turn the ignition on and wait 30 seconds.
5. Using a scan tool, read DTCs.
  Is DTC B1D79-SEAT RECLINER POSITION SENSOR CIRCUIT LOW active?
  
  Yes
  - Go to 3
  No
  - Go to 2
CHECK FOR ACTIVE FAULT WHILE ADJUSTING THE SEAT
1. Move the seat switch in the recliner adjust position three times.
2. Using a scan tool, read DTCs.
  Is DTC B1D79-SEAT RECLINER POSITION SENSOR CIRCUIT LOW active?
  
  Yes
  - Go to 3
  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 GROUND

Fig 1: Checking Driver Seat Recliner Position Sense Circuit For Short To Ground
Courtesy of CHRYSLER LLC
1. Turn the ignition off.
2. Disconnect the Memory Seat Module C2 connector.
3. Disconnect the Driver Recliner Seat Adjuster Motor connector.
  NOTE: Check connectors. Clean and repair as necessary.
4. Measure the resistance of the (G403) Driver Seat Recliner Position Sense circuit between ground and the Driver Recliner Seat Adjuster Motor connector.
  Is the resistance below 10K Ohms?
  
  Yes
  - Repair the (G403) Driver Seat Recliner 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
  - Go to 4
CHECK THE (G403) DRIVER SEAT RECLINER POSITION SENSE CIRCUIT FOR A SHORT TO THE (G493) DRIVER SEAT RECLINER POSITION SENSOR GROUND CIRCUIT, THE (P141) DRIVER SEAT RECLINER UP DRIVER CIRCUIT, AND THE (P143) DRIVER SEAT RECLINER DOWN DRIVER CIRCUIT

Fig 2: Checking Driver Seat Recliner Position Sense Circuit For Short To Driver Seat Recliner Circuits
Courtesy of CHRYSLER LLC
1. Measure the resistance 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.
2. Measure the resistance between the (G403) Driver Seat Recliner Position Sense circuit and the (P141) Driver Seat Recliner Up Driver circuit at the Driver Recliner Seat Adjuster Motor connector.
3. Measure the resistance between the (G403) Driver Seat Recliner Position Sense circuit and the (P143) Driver Seat Recliner Down Driver circuit at the Driver Recliner Seat Adjuster Motor connector.
  Is the resistance below 10K Ohms for any measurement?
  
  Yes
  - Repair all circuits with a resistance below 10K Ohms for a short to the (G403) Driver Seat Recliner Position Sense circuit.
  - 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 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. Reconnect the Memory Seat Module C2 connector.
2. Turn the ignition on.
3. 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.
4. 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
  - 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 .