Diagnostic Test
WARNING: This page is about a different car, the 2016 Dodge Durango. However, it is still accessible from the selected car via links, so may be relevant.
- VERIFY THE DTC IS ACTIVE
- Turn the ignition on.
- With the scan tool, read and record the DTCs.
- With the scan tool, read and record the Environmental Data to help identify the conditions in which the DTC was set.
- With the scan tool, erase the DTCs.
- Start the engine.
- Slowly press the brake pedal and release.
- 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 ABS INTERMITTENT CONDITION .
- INSPECT THE BRAKE PEDAL POSITION (BPP) SENSOR FOR INCORRECT INSTALLATION, DAMAGE OR MECHANICAL FAILURE
- Turn the ignition off.
- Visually inspect the BPP Sensor for Improper installation, damage or mechanical failure. Refer to SENSOR, STOP LAMP, INSTALLATION
.
Were any problems found?
Yes
- Repair as necessary.
- Perform the ABS VERIFICATION TEST. Refer to ABS VERIFICATION TEST .
No
- Go To 3
- (B137) BPP SENSOR SIGNAL CIRCUIT SHORTED TO VOLTAGE
- Disconnect the ABS Module harness connector.
- Disconnect the BPP Sensor harness connector.
- Turn the ignition on.
- Measure the voltage of the (B137) BPP Sensor Signal circuit in the BPP Sensor harness connector.
Is there any voltage present?
Yes
- Repair the (B137) BPP Sensor Signal circuit for a short to voltage.
- Perform the ABS VERIFICATION TEST. Refer to ABS VERIFICATION TEST .
No
- Go To 4
- (B937) BPP SENSOR RETURN CIRCUIT SHORTED TO VOLTAGE
- Measure the voltage of the (B937) BPP Sensor Return circuit in the BPP Sensor harness connector.
Is there any voltage present?
Yes
- Repair the (B937) BPP Sensor Return circuit for a short to voltage.
- Perform the ABS VERIFICATION TEST. Refer to ABS VERIFICATION TEST .
No
- Go To 5
- Measure the voltage of the (B937) BPP Sensor Return circuit in the BPP Sensor harness connector.
- (B237) BPP SENSOR FEED CIRCUIT SHORTED TO THE (B137) BPP SENSOR SIGNAL CIRCUIT
- Measure the resistance between the (B237) BPP Sensor Feed 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 Feed circuit and the (B137) BPP Sensor Signal circuit for a short.
- Perform the ABS VERIFICATION TEST. Refer to ABS VERIFICATION TEST .
No
- Go To 6
- Measure the resistance between the (B237) BPP Sensor Feed circuit and the (B137) BPP Sensor Signal circuit in the BPP Sensor harness connector.
- BRAKE PEDAL POSITION (BPP) SENSOR
- Turn the ignition off.
- Connect the ABS Module harness connector.
- Turn the ignition on.
- 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 SENSOR, STOP LAMP, REMOVAL .
- Perform the ABS VERIFICATION TEST. Refer to ABS VERIFICATION TEST .
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 ABS VERIFICATION TEST .