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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-12-Window Control - Circuit Short To Battery >> 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 FOR A SHORT 
    1. With the scan tool, erase the DTCs.
    2. Turn the ignition off.
    3. Disconnect the Driver Window Motor connector.
    4. Turn the ignition on.
    5. Operate the driver window switch up and down several times.
    6. With the scan tool, read DDM DTCs.

      Is the DTC active?

      Yes 

      • Go To  3

      No 

      • Replace the Driver Window Motor in accordance with Service Information.
      • Perform the BODY VERIFICATION TEST. Refer to BODY VERIFICATION TEST .
  3. CHECK THE (Q21) DRIVER WINDOW DRIVER DOWN CIRCUIT FOR A SHORT TO VOLTAGE 
    1. Turn the ignition off.
    2. Disconnect the Driver Door Module C4 connector.
    3. Turn the ignition on.
    4. Measure the voltage between the (Q21) Driver Window Driver Down circuit and Ground at the Driver Door Module C4 harness connector.

      Is there any voltage present?

      Yes 

      • Repair the (Q21) Driver Window Driver Down circuit for a short to voltage.
      • Perform the BODY VERIFICATION TEST. Refer to BODY VERIFICATION TEST .

      No 

      • Go To  4
  4. CHECK THE (Q11) DRIVER WINDOW DRIVER UP CIRCUIT FOR A SHORT TO VOLTAGE 
    1. Measure the voltage between the (Q11) Driver Window Driver Up circuit and Ground at the Driver Door Module C4 harness connector.

      Is there any voltage present?

      Yes 

      • Repair the (Q11) Driver Window Driver Up circuit for a short to voltage.
      • Perform the BODY VERIFICATION TEST. Refer to BODY VERIFICATION TEST .

      No