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Home >> Jeep >> 2014 >> Wrangler Sahara, Standard Trans >> Repair and Diagnosis >> External Pages >> Different car >> Section 164 ((Driver Door Module (DDM) (DMFL/R) - Electrical Diagnostics)) >> DTC Troubleshooting >> B25B0-31-Window Position Sensor - No Signal >> Diagnostic Test

Diagnostic Test

WARNING: This page is about a different car, the 2016 Dodge Journey and 2015 Dodge Journey. However, it is still accessible from the selected car via links, so may be relevant.
  1. CHECK FOR AN ACTIVE DTC 
    1. Turn the ignition on.
    2. With the scan tool, create a Vehicle Scan Report and attach it to the repair order.
    3. Operate the Driver Window switch up and down several times.
    4. Wait 30 seconds.
    5. With the scan tool, read DDM DTCs.

      Is the DTC active?

      Yes 

      • Go To  2

      No 

      • 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 and repair as necessary. If no problems are found, test complete.
      • Perform the BODY VERIFICATION TEST. Refer to BODY VERIFICATION TEST .
  2. CHECK THE (Q305) DRIVER WINDOW HALL SENSOR SUPPLY CIRCUIT FOR A SHORT TO VOLTAGE 
    1. Turn the ignition off.
    2. Disconnect the Driver Door Module C4 harness connector.
    3. Turn the ignition on.
    4. Measure the voltage between ground and the (Q305) Driver Window Hall Sensor Supply circuit.

      Is there any voltage present?

      Yes 

      • Repair the short to voltage in the (Q305) Driver Window Hall Sensor Supply circuit.
      • Perform the BODY VERIFICATION TEST. Refer to BODY VERIFICATION TEST .

      No 

      • Go To  3
  3. CHECK THE (Q301) DRIVER WINDOW HALL SENSOR A SIGNAL FOR A SHORT TO GROUND 
    1. Turn the ignition off.
    2. Disconnect the Driver Window Motor harness connector.
    3. Disconnect the Driver Door Module C4 harness connector.
    4. Check for continuity between ground and the (Q301) Driver Window Hall Sensor A Signal circuit in the Driver Window Motor harness connector.

      Is there continuity between ground and the (Q301) Driver Window Hall Sensor A Signal circuit?

      Yes 

      • Repair the short to ground in the Driver Window Hall Sensor A signal circuit.
      • Perform the BODY VERIFICATION TEST. Refer to BODY VERIFICATION TEST .

      No 

      • Go To  4
  4. CHECK THE (Q305) DRIVER WINDOW HALL SENSOR SUPPLY CIRCUIT FOR A OPEN 
    1. Measure the resistance of the (Q305) Driver Window Hall Sensor Supply circuit between the Driver Door Module C4 harness connector and the Driver Window Motor harness connector.

      Is the resistance above 2.0 Ohms?

      Yes 

      • Repair the open in the (Q305) Driver Window Hall Sensor Supply circuit.
      • Perform the BODY VERIFICATION TEST. Refer to BODY VERIFICATION TEST .

      No 

      • Go To  5
  5. CHECK THE (Q991) DRIVER WINDOW HALL SENSOR RETURN CIRCUIT FOR A OPEN 
    1. Measure the resistance of the (Q991) Driver Window Hall Sensor Return circuit between the Driver Door Module C4 harness connector and the Driver Window Motor harness connector.

      Is the resistance above 2.0 Ohms?

      Yes 

      • Repair the open in the (Q991) Driver Window Hall Sensor Return circuit.
      • Perform the BODY VERIFICATION TEST. Refer to BODY VERIFICATION TEST .

      No 

      • Go To  6
  6. CHECK THE (Q301) DRIVER WINDOW HALL SENSOR A SIGNAL CIRCUIT FOR A OPEN 
    1. Measure the resistance of the (Q301) Driver Window Hall Sensor A Signal circuit between the Driver Door Module C4 harness connector and the Driver Window Motor harness connector.

      Is the resistance above 2.0 Ohms?

      Yes 

      • Repair the open in the (Q301) Driver Window Hall Sensor A Signal circuit.
      • Perform the BODY VERIFICATION TEST. Refer to BODY VERIFICATION TEST .

      No 

      • Go To  7
  7. CHECK THE (Q301) DRIVER WINDOW HALL SENSOR A SIGNAL CIRCUIT FOR A SHORT TO THE (Q991) DRIVER WINDOW HALL SENSOR RETURN CIRCUIT 
    1. Check for continuity between the (Q301) Driver Window Hall Sensor A Signal circuit and the (Q991) Driver Window Hall Sensor Return circuit in the Driver Window Motor harness connector.

      Is there continuity between the (Q301) Driver Window Hall Sensor A Signal circuit and the (Q991) Driver Window Hall Sensor Return circuit?

      Yes 

      • Repair the (Q301) Driver Window Hall Sensor A Signal circuit for a short to the (Q991) Driver Window Hall Sensor Return circuit.
      • Perform the BODY VERIFICATION TEST. Refer to BODY VERIFICATION TEST .

      No 

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