Safety Warning

DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.

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HOMESERVICE MANUALSJEEP2009LIBERTY LIMITED, RWDREPAIR AND DIAGNOSIS (SINGLE PAGE)ACCESSORIES & EQUIPMENTANTI-THEFT SYSTEMSDRIVER DOOR MODULE (DDM) (DMFL/R) - ELECTRICAL DIAGNOSTICS - LIBERTYDTC TROUBLESHOOTINGB2580-DRIVER WINDOW POSITION SENSOR(S) NO SIGNALDIAGNOSTIC TEST

2009 Jeep Liberty Limited, RWD

Diagnostic Test

2009 Jeep Liberty Limited, RWDSECTION Diagnostic Test

TEST FOR INTERMITTENT CONDITION
1. Turn the ignition on.
2. With the scan tool, record and erase the DTCs.
3. Operate the Driver Window up and down several times.
4. Wait 30 seconds.
5. With the scan tool, read the active DTCs.
  Does the scan tool display B2580-DRIVER WINDOW POSITION SENSOR(S) NO SIGNAL?
  
  Yes
  - Go to step 2
  No
  - The conditions that caused this code to set are not present at this time. Using the wiring diagram/schematic as a guide, inspect the wiring and connectors.
  - Perform the BODY VERIFICATION TEST. Refer to DTC-Based Diagnostics/MODULE, Totally Integrated Power (TIPM) - Standard Procedure .
(Q305) DRIVER WINDOW HALL SENSOR SUPPLY CIRCUIT OPEN

Fig 1: Measuring Voltage Between Driver Window Hall Sensor Supply Circuit & Ground
Courtesy of CHRYSLER LLC
1. With the scan tool, erase the DTCs.
2. Turn the ignition off.
3. Disconnect the Driver Window Motor connector.
4. Measure the voltage between the (Q305) Driver Window Hall Sensor Supply circuit and Ground.
5. Turn the ignition on.
  Is the voltage above 9.5 volts?
  
  No
  - Go to step 3
  Yes
  - Go to step 4
(Q305) HALL SENSOR SUPPLY CIRCUIT OPEN

Fig 2: Checking Hall Sensor Supply Circuit For Open
Courtesy of CHRYSLER LLC
1. Turn the ignition off.
2. Disconnect the Driver Door Module C4 connector.
3. Measure the resistance of the (Q305) Driver Window Hall Sensor Supply circuit between the Module connector and the Motor connector.
  Is the resistance below 2.0 Ohms?
  
  Yes
  - Replace the Driver Door Module in accordance with the Service Information.
  - Perform the BODY VERIFICATION TEST. Refer to DTC-Based Diagnostics/MODULE, Totally Integrated Power (TIPM) - Standard Procedure .
  No
  - Repair the (Q305) Driver Window Hall Sensor Supply circuit for an open.
  - Perform the BODY VERIFICATION TEST. Refer to DTC-Based Diagnostics/MODULE, Totally Integrated Power (TIPM) - Standard Procedure .
(Q301) DRIVER WINDOW HALL SENSOR A SIGNAL CIRCUIT OPEN

Fig 3: Checking Driver Window Hall Sensor A Signal Circuit For Open
Courtesy of CHRYSLER LLC
1. Turn the ignition off.
2. Disconnect the Driver Door Module C4 connector.
3. Measure the resistance of the (Q301) Driver Window Hall Sensor A Signal circuit between the Module connector and the Motor connector.
  Is the resistance below 2.0 Ohms?
  
  No
  - Repair the (Q301) Driver Window Hall Sensor A Signal circuit for an open.
  - Perform the BODY VERIFICATION TEST. Refer to DTC-Based Diagnostics/MODULE, Totally Integrated Power (TIPM) - Standard Procedure .
  Yes
  - Replace the Driver Window Motor (regulator) in accordance with the Service Information.
  - Perform the BODY VERIFICATION TEST. Refer to DTC-Based Diagnostics/MODULE, Totally Integrated Power (TIPM) - Standard Procedure .

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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

• You smell fuel, burning insulation, or see smoke.
• Brakes feel soft, pull hard to one side, or make grinding noises.
• The engine overheats, stalls repeatedly, or misfires under load.
• You are missing required tools, torque specs, or safe lifting equipment.
• You are not confident in the next step or safety outcome.