Diagnostic Test

WARNING: This page is about a different car, the 2012 Jeep Liberty. However, it is still accessible from the selected car via links, so may be relevant.

TEST FOR INTERMITTENT CONDITION
1. Turn the ignition on.
2. With the scan tool, record and erase DTCs
3. Move the Seat Switch in the horizontal position three times.
4. With the scan tool, read the active DTCs.
  Does the scan tool display B1D6B-11-SEAT HORIZONTAL POSITION SENSOR-CIRCUIT SHORT TO GROUND?
  
  Yes
  - Go To 2.
  No
  - Test complete, the condition or conditions that originally set this DTC are not present at this time. Using the wiring diagrams as a guide, check all related splices and connectors for signs of water intrusion, corrosion, pushed out or bent terminals, and correct pin tension.
  - Perform the POWER SEAT SYSTEM VERIFICATION TEST. Refer to STANDARD PROCEDURE - POWER SEAT SYSTEM VERIFICATION TEST .
CHECKING THE (G401) DRIVER SEAT HORIZONTAL POSITION SENSE CIRCUIT

Fig 1: Measuring Voltage Between Driver Sense Circuit & Ground
Courtesy of CHRYSLER GROUP, LLC
1. Disconnect the Driver Horizontal Seat Adjuster Motor harness connector.
2. Measure the voltage between the (G401) Driver Seat Horizontal Position Sense circuit and ground.
  Is the voltage above 11 volts?
  
  Yes
  - Replace the Seat Adjuster Horizontal Motor Assembly in accordance with the Service Information.
  - Perform the POWER SEAT SYSTEM VERIFICATION TEST. Refer to STANDARD PROCEDURE - POWER SEAT SYSTEM VERIFICATION TEST .
  No
  - Go To 3.
CHECKING THE (G401) DRIVER SEAT HORIZONTAL POSITION SENSE CIRCUIT FOR A SHORT TO GROUND

Fig 2: Checking Driver Sense Circuit For Short To Ground
Courtesy of CHRYSLER GROUP, LLC
1. Turn the ignition off.
2. Disconnect the MSMD C3 harness connector.
3. Measure the resistance between ground and the (G401) Driver Seat Horizontal Position Sense circuit.
  Is the resistance below 1K Ohms.
  
  Yes
  - Repair the short to ground in the (G401) Driver Seat Horizontal Position Sense circuit.
  - Perform the POWER SEAT SYSTEM VERIFICATION TEST. Refer to STANDARD PROCEDURE - POWER SEAT SYSTEM VERIFICATION TEST .
  No
  - Go To 4.
MEMORY SEAT MODULE (MSMD)
1. Using the wiring diagram/schematic as a guide, inspect the wiring and harness connectors between the Driver Horizontal Seat Adjuster Motor and the MSMD.
2. Look for any chafed, pierced, pinched, or partially broken wires.
3. Look for broken, bent, pushed out or corroded terminals. Verify that there is good pin to terminal contact in the Driver Horizontal Seat Adjuster Motor and MSMD harness connectors.
4. Perform any Technical Service Bulletins that may apply.
  Were there any problems found?
  
  Yes
  - Repair as necessary.
  - Perform the POWER SEAT SYSTEM VERIFICATION TEST. Refer to STANDARD PROCEDURE - POWER SEAT SYSTEM VERIFICATION TEST .
  No
  - Replace the MSMD in accordance with the Service Information.
  - Perform the POWER SEAT SYSTEM VERIFICATION TEST. Refer to STANDARD PROCEDURE - POWER SEAT SYSTEM VERIFICATION TEST .