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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 >> B1A87-14-ESCL Unlock Control - Circuit Short To Ground Or Open >> 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 ACTIVE DTC 
    1. Turn the ignition on.
    2. With the scan tool, erase DTCs.
    3. Turn the ignition off and wait 30 seconds.
    4. Turn the ignition on and wait 30 seconds.
    5. 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 THE (T824) TRS PARK SIGNAL CIRCUIT AT THE BCM 
    Fig 1: Checking TRS Park Signal Circuit At BCM
    GC0143304Courtesy of CHRYSLER GROUP, LLC
    1. Turn the ignition off.
    2. Disconnect the BCM D harness connector.
    3. Turn the ignition on.
    4. Measure the voltage between ground and the (T824) TRS Park Signal circuit.

      Is the voltage above 10.0 volts?

      Yes 

      No 

      • Go To  3
  3. CHECK THE (T824) TRS PARK SIGNAL CIRCUIT FOR A SHORT TO GROUND 
    Fig 2: Checking TRS Park Signal Circuit For A Short To Ground
    GC0143305Courtesy of CHRYSLER GROUP, LLC
    1. Turn the ignition off.
    2. Disconnect the RF Hub Module C1 harness connector.
    3. Measure the resistance between ground and the (T824) TRS Park Signal circuit.

      Is the resistance above 10k Ohms?

      Yes 

      • Go To  4

      No 

      • Repair the short to ground in the (T824) TRS Park Signal circuit.
      • Perform the BODY VERIFICATION TEST. Refer to STANDARD PROCEDURE .
  4. CHECK THE (T824) TRS PARK SIGNAL CIRCUIT FOR AN OPEN 
    Fig 3: Checking TRS Park Signal Circuit For An Open
    GC0143306Courtesy of CHRYSLER GROUP, LLC
    1. Measure the resistance of the (T824) TRS Park Signal circuit between the RF Hub Module C1 harness connector and the BCM D harness connector.

      Is the resistance below 5.0 Ohms?

      Yes 

      No 

      • Repair the open in the (T824) TRS Park Signal circuit.
      • Perform the BODY VERIFICATION TEST. Refer to STANDARD PROCEDURE .