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Home >> Jeep >> 2006 >> Commander Base, 3.7 K, AWD >> Repair and Diagnosis (Single Page) >> Accessories & Equipment >> Anti-Theft Systems >> Power Door Lock System- Electrical Diagnostics >> DTC Troubleshooting >> B1802-Driver Door Lock/Unlock Switch Circuit High - Driver Door Module >> Diagnostic Test

Diagnostic Test

  1. 1) TEST FOR INTERMITTENT CONDITION 

    With the scan tool, record and erase DTC's

    Operate the Driver Door Lock Switch in both positions several times.

    Cycle the ignition from on to off 3 times.

    Turn the ignition on.

    With the scan tool, read DTC's.

    Does the scan tool display B1802- DRIVER DOOR LOCK/UNLOCK SWITCH CIRCUIT HIGH? 

    Yes 

    1. Go To step  2).

    No 

    1. 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.
    2. Perform BODY VERIFICATION TEST - VER 1 .
  2. 2) DRIVER DOOR LOCK SWITCH SHORTED TO VOLTAGE 
    Fig 1: Checking Driver Door Lock Switch Shorted To Voltage
    GC0045543Courtesy of DAIMLERCHRYSLER CORP.

    With the scan tool, erase DTC's.

    Disconnect the Driver Window/Door Lock Switch C2 connector.

    Turn the ignition on.

    With the scan tool, read DTC's.

    Does the scan tool display DRIVER DOOR LOCK/UNLOCK SWITCH CIRCUIT HIGH? 

    No 

    1. Replace the Driver Window/Door Lock Switch.
    2. Perform BODY VERIFICATION TEST - VER 1 .

    Yes 

    1. Go to step  3).
  3. 3) (G160) OR (G161) DOOR LOCK SWITCH MUX WIRE SHORT TO VOLTAGE 
    Fig 2: Checking Door Lock Switch MUX Circuit
    GC0045544Courtesy of DAIMLERCHRYSLER CORP.

    Disconnect the Driver Door Module C2 connector.

    Measure the voltage between ground and the (G160) or (G161) Door Lock Switch MUX circuit in the Door Module C2 connector.

    Is there any voltage present? 

    Yes 

    1. Repair the (G160) or (G161) Left/Right Door Lock Switch MUX circuit for a short to voltage.
    2. Perform BODY VERIFICATION TEST - VER 1 .

    No 

    1. Go to step  4).
  4. 4) VEHICLE EQUIPPED WITH MEMORY SYSTEM? 

    Is this vehicle equipped with the Memory System? 

    No  

    1. Replace the Driver Door Module in accordance with service information.
    2. Perform BODY VERIFICATION TEST - VER 1 .

    Yes  

    1. Go to step  5).
  5. 5) (P439) MEMORY SELECT MUX WIRE SHORT TO VOLTAGE 
    Fig 3: Checking Memory Select Switch MUX Circuit
    GC0045545Courtesy of DAIMLERCHRYSLER CORP.

    Disconnect the Driver Door Module C3 connector.

    Measure the voltage between ground and the (P439) Memory Select Switch MUX circuit.

    Is there any voltage present? 

    Yes 

    1. Repair the (P439) Memory Select Switch MUX wire for a short to voltage.
    2. Perform BODY VERIFICATION TEST - VER 1 .

    No 

    1. Replace the Driver Door Module in accordance with service information.
    2. Perform BODY VERIFICATION TEST - VER 1 .
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