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Home >> Jeep >> 2009 >> Commander Overland, RWD >> Repair and Diagnosis (Single Page) >> Body & Frame >> Windows >> Driver Door Module (DDM) - Electrical Diagnostics >> DTC Troubleshooting >> B190F-Driver Window Switch Circuit High >> Diagnostic Test
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Diagnostic Test

  1. TEST FOR INTERMITTENT CONDITION 
    1. With the scan tool, record and erase the DTCs.
    2. Operate the Driver Window Switch in both positions several times.
    3. Cycle the ignition from on to off.
    4. Turn the ignition on.
    5. With the scan tool, read the active DTCs.

      Does the scan tool display B190F-DRIVER WINDOW SWITCH CIRCUIT HIGH?

      Yes 

      • Go to step  2

      No 

  2. DRIVER WINDOW/DOOR LOCK SWITCH SHORTED 
    Fig 1: Checking Driver Window/Door Lock Switch Shorted To Ground
    GC0106043Courtesy of CHRYSLER LLC
    1. With the scan tool, erase the DTCs.
    2. Disconnect the Driver Window/Door Lock Switch C2 connector.
    3. Turn the ignition on.
    4. With the scan tool, read the active DTCs.

      Does the scan tool display B190F-DRIVER WINDOW SWITCH CIRCUIT HIGH?

      No 

      Yes 

      • Go to step  3
  3. (Q221) DRIVER EXPRESS SWITCH DRIVER WINDOW MUX CIRCUIT SHORT TO VOLTAGE 
    Fig 2: Checking Driver Express Switch Driver Window MUX Circuit Short To Voltage
    GC0106046Courtesy of CHRYSLER LLC
    1. Turn the ignition off.
    2. Disconnect the Driver Door Module C2 connector.
    3. Turn the ignition on.
    4. Measure the voltage between ground and the (Q221) Driver Express Switch Driver Window Mux circuit in the Driver Door Module C2 connector.

      Is there any voltage present?

      Yes 

      No