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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 >> B18BA-13-Window Control - Circuit Open >> 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. Try to operate the Driver Window 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 WINDOW MOTOR 
    1. Turn the ignition off.
    2. Disconnect the Driver Window Motor harness connector.
    3. Connect a 12-volt test light between the (Q11) Driver Window Driver Up circuit and the (Q21) Driver Window Driver Down circuit at the Driver Window Motor harness connector.
    4. Turn the ignition on.
    5. Trip the driver door latch to the closed position.
    6. Operate the driver window switch up and down several times while observing the test light.
      NOTE:

      The test light must illuminate brightly. Compare the brightness to that of a direct connection to the battery.

      Does the test light illuminate brightly when the switch is pressed in both directions?

      NOTE:

      With the express up window feature, the test light will only flash momentarily each time the switch is activated.

      Yes 

      • Replace the Driver Window Motor in accordance with the Service Information.
      • Perform the BODY VERIFICATION TEST. Refer to BODY VERIFICATION TEST .

      No 

      • Go To  3
  3. CHECK THE (Q21) DRIVER WINDOW EXPRESS DOWN DRIVER CIRCUIT FOR AN OPEN 
    1. Turn the ignition off.
    2. Disconnect the Driver Door Module C4 harness connector.
    3. Measure the resistance of the (Q21) Driver Window Down Driver circuit between the Driver Door Module C4 connector and the Driver Window Motor harness connector at the Driver Door Module C4 harness connector.

      Is the resistance below 2.0 Ohms?

      Yes 

      • Go To  4

      No 

      • Repair the (Q21) Driver Window Down Driver circuit for an open.
      • Perform the BODY VERIFICATION TEST. Refer to BODY VERIFICATION TEST .
  4. CHECK THE (Q11) DRIVER WINDOW DRIVER UP CIRCUIT FOR AN OPEN 
    1. Measure the resistance of the (Q11) Driver Window Driver Up circuit between the Driver Door Module C4 harness connector and the Driver Window Motor harness connector at the Driver Door Module C4 harness connector.

      Is the resistance below 2.0 Ohms?

      Yes 

      No 

      • Repair the (Q11) Driver Window Driver Up circuit for an open.
      • Perform the BODY VERIFICATION TEST. Refer to BODY VERIFICATION TEST .
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