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.

CHECK FOR AN ACTIVE DTC
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. Slowly press the brake pedal completely.
7. With the scan tool, read ABS DTCs and record on the repair order.
  Is the DTC active?
  
  Yes
  - Go To 2
  No
  - Perform the ABS-INTERMITTENT CONDITION TEST. Refer to STANDARD PROCEDURE .
INSPECT THE BRAKE PEDAL POSITION (BPP) SENSOR FOR INCORRECT INSTALLATION, DAMAGE OR MECHANICAL FAILURE
1. Turn the ignition off.
2. Visually inspect the BPP Sensor for Improper installation, damage or mechanical failure. Refer to SWITCH, STOP LAMP, INSTALLATION .
  Were any problems found?
  
  Yes
  - Repair as necessary.
  - Perform the ABS VERIFICATION TEST. Refer to STANDARD PROCEDURE .
  No
  - Go To 3
(B237) BPP SENSOR SUPPLY CIRCUIT SHORTED TO VOLTAGE
1. Disconnect the BPP Sensor harness connector.
2. Turn the ignition on.
3. Measure the voltage of the (B237) BPP Sensor Supply circuit in the BPP Sensor harness connector.
  Is the voltage above 5.5 volts?
  
  Yes
  - Repair the (B237) BPP Sensor Supply circuit for a short to voltage.
  - Perform the ABS VERIFICATION TEST. Refer to STANDARD PROCEDURE .
  No
  - Go To 4
(B137) BPP SENSOR SIGNAL CIRCUIT SHORTED TO VOLTAGE
1. Measure the voltage of the (B137) BPP Sensor Signal circuit in the BPP Sensor harness connector.
  Is there any voltage present?
  
  Yes
  - Go To 5
  No
  - Repair the (B137) BPP Sensor Signal circuit for a short to voltage.
  - Perform the ABS VERIFICATION TEST. Refer to STANDARD PROCEDURE .
(B937) BPP SENSOR RETURN CIRCUIT SHORTED TO VOLTAGE
1. Measure the voltage of the (B937) BPP Sensor Return circuit in the BPP Sensor harness connector.
  Is there any voltage present?
  
  Yes
  - Go To 6
  No
  - Repair the (B937) BPP Sensor Return circuit for a short to voltage.
  - Perform the ABS VERIFICATION TEST. Refer to STANDARD PROCEDURE .
(B937) BPP SENSOR RETURN SUPPLY CIRCUIT OPEN OR HIGH RESISTANCE
1. Turn the ignition off.
2. Disconnect the ABS Module harness connector.
3. Measure the resistance of the (B937) BPP Sensor Return circuit between the BPP Sensor harness connector and the ABS Module harness connector.
  Is the resistance below 5.0 Ohms?
  
  Yes
  - Go To 7
  No
  - Repair the (B937) BPP Sensor Signal Return circuit for an open circuit or high resistance.
  - Perform the ABS VERIFICATION TEST. Refer to STANDARD PROCEDURE .
(B237) BPP SENSOR SUPPLY CIRCUIT SHORTED TO THE (B137) BPP SENSOR SIGNAL CIRCUIT
1. Measure the resistance between ground and the (B937) BPP Sensor Return circuit and the (B137) BPP Sensor Signal circuit in the BPP Sensor harness connector.
  Is the resistance below 5.0 Ohms?
  
  Yes
  - Repair the (B237) BPP Sensor Supply circuit and the (B137) BPP Sensor Signal circuit for a short.
  - Perform the ABS VERIFICATION TEST. Refer to STANDARD PROCEDURE .
  No
  - Go To 8
BRAKE PEDAL POSITION (BPP) SENSOR
1. Turn the ignition off.
2. Connect the ABS Module harness connector.
3. Turn the ignition on.
4. Measure the voltage at the BPP Sensor harness connector between the (B237) BPP Sensor Feed and the (B937) BPP Sensor Return.
  Is the voltage above 4.75 volts?
  
  Yes
  - Replace the Brake Pedal Position (BPP) Sensor in accordance with the Service Information. Refer to SWITCH, STOP LAMP, REMOVAL .
  - Perform the ABS VERIFICATION TEST. Refer to STANDARD PROCEDURE .
  No
  - Replace the Anti-lock Brake System (ABS) Module in accordance with the service information. Refer to MODULE, ANTI-LOCK BRAKE SYSTEM, REMOVAL .
  - Perform the ABS VERIFICATION TEST. Refer to STANDARD PROCEDURE .