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.

CHECK FOR AN ACTIVE DTC
1. Turn the ignition on.
2. With the scan tool, clear the DTCs.
3. Cycle the ignition off and on.
4. Wait 10 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 .
CHECK THE (D401) BCM LIN 1 BUS CIRCUIT FOR A SHORT TO VOLTAGE

Fig 1: Checking Voltage Of LIN Bus Circuit
Courtesy of CHRYSLER GROUP, LLC
1. Turn the ignition off.
2. Disconnect the IBS harness connector.
3. Disconnect the BCM G harness connector.
4. Turn the ignition on.
5. Measure the voltage between ground and the (D401) BCM LIN 1 Bus circuit.
  Is there any voltage present?
  
  Yes
  - Repair the short to voltage on the (D401) BCM LIN 1 Bus circuit.
  - Perform the BODY VERIFICATION TEST. Refer to STANDARD PROCEDURE .
  No
  - Go To 3
CHECK THE (D401) BCM LIN 1 BUS CIRCUIT FOR A SHORT TO GROUND

Fig 2: Checking BCM LIN 1 BUS Circuit For A Short To Ground
Courtesy of CHRYSLER GROUP, LLC
1. Turn the ignition off.
2. Measure the resistance between ground and the (D401) BCM LIN 1 Bus circuit.
  Is the resistance above 10k Ohms?
  
  Yes
  - Replace the Intelligent Battery Sensor (IBS) in accordance with the Service Information. Refer to SENSOR, INTELLIGENT BATTERY (IBS), REMOVAL .
  - Perform the BODY VERIFICATION TEST. Refer to STANDARD PROCEDURE .
  No
  - Repair the short to ground in the (D401) BCM LIN 1 Bus circuit.
  - Perform the BODY VERIFICATION TEST. Refer to STANDARD PROCEDURE .