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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 
    NOTE:

    This DTC must be active for the results of this test to be valid.

    1. Turn the ignition on.
    2. With the scan tool, read ABS DTCs and record on the repair order.
    3. With the scan tool, read and record the Environmental Data to help identify the conditions in which the DTC was set.
    4. With the scan tool, erase the DTCs.
    5. Start the engine.
    6. Press and release the brake pedal.
    7. With the scan tool, read ABS DTCs.

      Is the DTC active?

      Yes 

      • Go To  2

      No 

  2. CHECK THE (B15) BRAKE SIGNAL 1 FOR A SHORT TO VOLTAGE 
    1. Turn the ignition off.
    2. Disconnect the Body Control Module (BCM) C4 harness connector.
    3. Disconnect the Anti-lock Brake System (ABS) Module harness connector.
    4. Turn the ignition on.
    5. Measure the voltage between ground and the (B15) Brake Signal 1 circuit at the ABS Module harness connector.

      Is there any voltage present?

      Yes 

      • Repair the (B15) Brake Signal circuit for a short to voltage.
      • Perform the ABS VERIFICATION TEST. Refer to STANDARD PROCEDURE .

      No 

      • Go To  3
  3. CHECK THE (B15) BRAKE SIGNAL 1 FOR A SHORT TO GROUND 
    1. Turn the ignition off.
    2. Check for continuity between ground and the (B15) Brake Signal 1 circuit at the ABS Module harness connector.

      Is there continuity between ground and the ABS Module circuit?

      Yes 

      • Go To  4

      No 

      • Repair the (B15) Brake Signal 1 circuit for a short to ground.
      • Perform the ABS VERIFICATION TEST. Refer to STANDARD PROCEDURE .
  4. CHECK THE (B15) BRAKE SIGNAL FOR AN OPEN OR HIGH RESISTANCE 
    1. Measure the resistance of the (B15) Brake Signal 1 circuit between the BCM harness connector and the ABS Module harness connector.

      Is the resistance below 5.0 Ohms?

      Yes 

      No 

      • Repair the (B15) Brake Signal 1 circuit for an open circuit or high resistance.
      • Perform the ABS VERIFICATION TEST. Refer to STANDARD PROCEDURE .
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