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.

VERIFY THE DTC IS ACTIVE
1. Turn the ignition on.
2. With the scan tool, read and record the DTCs.
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 and release.
7. With the scan tool, read and record the DTCs.
  Is the DTC active at this time?
  
  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 FEED CIRCUIT OPEN OR HIGH RESISTANCE
1. Disconnect the ABS Module harness connector.
2. Disconnect the Brake Pedal Position (BPP) Sensor harness connector.
3. Measure the resistance of the (B237) BPP Sensor Feed circuit between the BPP Sensor harness connector and the ABS Module harness connector.
  Is the resistance below 5.0 Ohms?
  
  Yes
  - Go To 4
  No
  - Repair the (B237) BPP Sensor Feed circuit for an open circuit or high resistance.
  - Perform the ABS VERIFICATION TEST. Refer to STANDARD PROCEDURE .
(B137) BPP SENSOR SIGNAL CIRCUIT OPEN OR HIGH RESISTANCE
1. Measure the resistance of the (B137) BPP Sensor Signal circuit between the BPP Sensor harness connector and the ABS Module harness connector.
  Is the resistance below 5.0 Ohms?
  
  Yes
  - Go To 5
  No
  - Repair the (B137) BPP Sensor Signal circuit for an open circuit or high resistance.
  - Perform the ABS VERIFICATION TEST. Refer to STANDARD PROCEDURE .
(B137) BPP SENSOR SIGNAL CIRCUIT SHORTED TO GROUND
1. Measure the resistance between ground and the (B137) BPP Sensor Signal circuit in the BPP Sensor harness connector.
  Is the resistance above 5 Ohms?
  
  Yes
  - Go To 6
  No
  - Repair the (B137) BPP Signal circuit for a short to ground.
  - Perform the ABS VERIFICATION TEST. Refer to STANDARD PROCEDURE .
(B137) BPP SENSOR SIGNAL CIRCUIT SHORTED TO THE (B937) BPP SENSOR RETURN CIRCUIT
1. Measure the resistance between the (B937) BPP Sensor Return circuit and the (B137) BPP Sensor Signal circuit in the BPP Sensor harness connector.
  Is the resistance above 5 Ohms?
  
  Yes
  - Go To 7
  No
  - Repair the (B137) BPP Sensor Signal circuit and the (B937) BPP Sensor Return circuit for a short.
  - Perform the ABS VERIFICATION TEST. Refer to STANDARD PROCEDURE .
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 .