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Home >> Chrysler >> 2009 >> PT Cruiser Limited >> Repair and Diagnosis >> External Pages >> Different car >> Section 47 ((Cabin Compartment Node (CCN) - Electrical Diagnostics)) >> DTC Troubleshooting >> B1806-Passenger Door Lock/Unlock Switch Circuit Low >> Diagnostic Test

Diagnostic Test

WARNING: This page is about a different car, the 2009 Dodge Caliber. However, it is still accessible from the selected car via links, so may be relevant.
  1. TEST FOR INTERMITTENT CONDITION 
    1. With the scan tool, record and erase the DTCs
    2. Operate the Passenger Door Lock Switch in all positions several times.
    3. Cycle the ignition from on to off.
    4. Turn the ignition on.
    5. With the scan tool, read the DTCs.

      Does the scan tool display B1806-PASSENGER DOOR LOCK/UNLOCK SWITCH CIRCUIT LOW?

      Yes 

      • Go to step  2

      No 

  2. DOOR LOCK SWITCH SHORTED 
    Fig 1: Checking Door Lock Switch
    GC0100445Courtesy of CHRYSLER LLC
    1. With the scan tool, erase the DTCs.
    2. Disconnect the Passenger Window/Door Lock Switch connector.
    3. With the scan tool, read the DTCs.

      Does the scan tool display B1806-PASSENGER DOOR LOCK/UNLOCK SWITCH CIRCUIT LOW?

      No 

      Yes 

      • Go to step  3
  3. (P696) PASSENGER DOOR LOCK SWITCH MUX CIRCUIT SHORT TO GROUND 
    Fig 2: Checking Passenger Door Lock Switch MUX Circuit
    GC0100446Courtesy of CHRYSLER LLC
    1. Turn the ignition off.
    2. Disconnect the Cluster C2 connector.
    3. Measure the resistance between ground and the (P696) Passenger Door Lock Switch Mux circuit.

      Is the resistance below 10,000 ohms?

      Yes 

      No