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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 
    1. Perform any Service Bulletins that may apply.
    2. Turn the ignition on.
    3. With the scan tool, read ABS DTCs and record on the repair order.
    4. Cycle the ignition switch from off to on.
    5. With the scan tool, read ABS DTCs.

      Is the DTC active?

      Yes 

      • Go To  2

      No 

      • The condition that caused the symptom is currently not present. Inspect the related wiring for a possible intermittent condition. Look for any chafed, pierced, pinched, or partially broken wires.
      • Perform the ABS-INTERMITTENT CONDITION TEST. Refer to STANDARD PROCEDURE .
  2. (B31) VACUUM PRESSURE SENSOR SUPPLY CIRCUIT OPEN OR HIGH RESISTANCE 
    1. Turn ignition off to the lock position.
    2. Disconnect the ABS Module harness connector.
    3. Measure the resistance of the (B31) Vacuum Pressure Sensor Supply circuit between the Vacuum Pressure Sensor harness connector and the ABS Module harness connector.

      Is the resistance below 5.0 Ohms?

      Yes 

      • Go To  3

      No 

      • Repair the (B31) Vacuum Pressure Sensor Supply circuit for an open or high resistance.
      • Perform the ABS VERIFICATION TEST. Refer to STANDARD PROCEDURE .
  3. (B32) VACUUM PRESSURE SENSOR SIGNAL CIRCUIT SHORTED TO VOLTAGE 
    1. Turn ignition off to the lock position.
    2. Disconnect the ABS Module harness connector.
    3. Disconnect the Vacuum Pressure Sensor harness connector.
    4. Turn the ignition on.
    5. Measure the voltage between ground and the (B32) Vacuum Pressure Sensor Signal circuit at the Vacuum Pressure Sensor harness connector.

      Is there any voltage present?

      Yes 

      • Repair the (B32) Vacuum Pressure Sensor Signal circuit for a short to ground.
      • Perform the ABS VERIFICATION TEST. Refer to STANDARD PROCEDURE .

      No 

      • Go To  4
  4. (B32) VACUUM PRESSURE SENSOR SIGNAL CIRCUIT SHORTED TO GROUND 
    1. Turn ignition off.
    2. Disconnect the ABS Module harness connector.
    3. Measure the resistance between ground and the (B32) Vacuum Pressure Sensor Signal circuit at the Vacuum Pressure Sensor harness connector.

      Is the resistance below 5.0 Ohms?

      Yes 

      • Repair the (B32) Vacuum Pressure Sensor Signal circuit for a short to ground.
      • Perform ABS VERIFICATION TEST. Refer to STANDARD PROCEDURE .

      No 

      • Go To  5
  5. (B32) VACUUM PRESSURE SENSOR SIGNAL CIRCUIT OPEN OR HIGH RESISTANCE 
    1. Turn ignition off to the lock position.
    2. Disconnect the ABS Module harness connector.
    3. Measure the resistance of the (B32) Vacuum Pressure Sensor Signal circuit between the Vacuum Pressure Sensor harness connector and the ABS Module harness connector.

      Is the resistance below 5.0 Ohms?

      Yes 

      • Go To  6

      No 

      • Repair the (B32) Vacuum Pressure Sensor Signal circuit for an open or high resistance.
      • Perform the ABS VERIFICATION TEST. Refer to STANDARD PROCEDURE .
  6. (B33) VACUUM PRESSURE SENSOR RETURN CIRCUIT OPEN OR HIGH RESISTANCE 
    1. Turn ignition off to the lock position.
    2. Measure the resistance of the (B33) Vacuum Pressure Sensor Return circuit between the Vacuum Pressure Sensor harness connector and the ABS Module harness connector.

      Is the resistance below 5.0 Ohms?

      Yes 

      • Go To  7

      No 

      • Repair the (B33) Vacuum Pressure Sensor Return circuit for an open or high resistance.
      • Perform the ABS VERIFICATION TEST. Refer to STANDARD PROCEDURE .
  7. ANTI-LOCK BRAKE SYSTEM (ABS) MODULE 
    1. Turn the ignition off.
    2. Replace the Vacuum Pressure Sensor.
    3. Perform the ABS VERIFICATION TEST. Refer to STANDARD PROCEDURE .
    4. With the scan tool, read the DTCs.

      Is the DTC still active?

      Yes 

      No 

      • Test complete.