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Home >> Jeep >> 2014 >> Wrangler Sahara, Standard Trans >> Repair and Diagnosis >> External Pages >> Different car >> Section 123 (Body Control Module (BCM) - DTCS B1812-2A To U1433-24) >> DTC Troubleshooting >> B2103-15-Ignition Run/Start 1 Control - Circuit Short To Battery Or Open >> Diagnostic Test

Diagnostic Test

WARNING: This page is about a different car, the 2016 Dodge Journey and 2015 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. 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 BODY VERIFICATION TEST .
  2. CHECK THE IGNITION RUN/START RELAY FOR CORRECT OPERATION 
    1. Turn the ignition off.
    2. Remove the Ignition Run/Start Relay and substitute it with a known good relay.
    3. With the scan tool, read DTCs.

      Does the scan tool display this DTC as active?

      Yes 

      • Go To  3

      No 

  3. CHECK THE (K617) RUN/START RELAY CONTROL CIRCUIT FOR A SHORT TO VOLTAGE 
    1. Turn the ignition off.
    2. Remove the Run/Start Relay.
    3. Using a 12-volt test light connected to ground, check the (K617) Run/Start Relay Control circuit.

      Does the test light illuminate brightly?

      Yes 

      • Repair the short to voltage in the (K617) Run/Start Relay Control circuit.
      • Perform the BODY VERIFICATION TEST. Refer to BODY VERIFICATION TEST .

      No 

      • Go To  4
  4. CHECK THE (K617) RUN/START RELAY CONTROL CIRCUIT FOR AN OPEN 
    1. Disconnect the BCM A harness connector.
    2. Measure the resistance of the (K617) Run/Start Relay Control circuit between the Power Distribution Center (PDC) and the BCM A harness connector.

      Is the resistance below 5.0 Ohms?

      Yes 

      No 

      • Repair the open in the (K617) Run/Start Relay Control circuit.
      • Perform the BODY VERIFICATION TEST. Refer to BODY VERIFICATION TEST .