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Home >> Jeep >> 2014 >> Wrangler Sahara, Standard Trans >> Repair and Diagnosis >> External Pages >> Different car >> Section 69 (Body Control Module (BCM) - DTCS B1830-11 To U1433-24) >> Diagnosis And Testing >> B1830-12-All Doors Unlock Control - Circuit Short To Battery >> Diagnostic Test

Diagnostic Test

WARNING: This page is about a different car, the 2014 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. Lock and unlock the doors.
    3. With the scan tool, read DTCs.

      Does the scan tool display this DTC as active?

      Yes 

      • Go To  2

      No 

      • Test complete, 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.
      • Perform the BODY VERIFICATION TEST. Refer to STANDARD PROCEDURE .
  2. CHECK EACH MOTOR ON THE (P910) DRIVER DOOR UNLOCK DRIVER CIRCUIT AND (P292) PASSENGER DOORS UNLOCK DRIVER CIRCUIT FOR A SHORT TO VOLTAGE 
    NOTE:

    Using the wiring diagram as a guide, disconnect each component on the circuits one at a time and check for an active DTC.

    1. Turn the ignition off.
    2. Disconnect one of the Door Lock Motors on the circuits.
    3. Turn the ignition on.
    4. Lock and unlock the doors.
    5. With the scan tool, read DTCs.

      Does the scan tool display DTC: B1830-12-ALL DOORS UNLOCK CONTROL - CIRCUIT SHORT TO BATTERY?

      Yes 

      • Repeat this step for all the Door Lock Motors on the circuits. Once all the motors are disconnected: Go To  3

      No 

  3. CHECK THE (P910) DRIVER DOOR UNLOCK DRIVER CIRCUIT AND (P292) PASSENGER DOORS UNLOCK DRIVER CIRCUIT FOR A SHORT TO VOLTAGE 
    1. Turn the ignition off.
    2. Disconnect the BCM F harness connector.
    3. Measure the voltage between ground and the (P910) Driver Door Unlock Driver circuit.
    4. Measure the voltage between ground and the (P292) Passenger Doors Unlock Driver circuit.

      Is there any voltage present?

      Yes 

      • Repair the short to voltage in the (P910) Driver Door Unlock Driver circuit or (P292) Passenger Doors Unlock Driver circuit.
      • Perform the BODY VERIFICATION TEST. Refer to STANDARD PROCEDURE .

      No