Diagnostic Test

WARNING: This page is about a different car, the 2012 RAM Cab & Chassis. However, it is still accessible from the selected car via links, so may be relevant.

DTC IS ACTIVE
1. Turn the ignition on.
2. With the scan tool, clear DTC's.
3. Turn the ignition off.
4. Turn the ignition on.
5. With the scan tool, select View DTC's.
  Is the status Active for this DTC?
  
  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 diagnostic procedure. Refer to ABS INTERMITTENT CONDITION .
WHEEL SPEED SENSOR INSPECTION
1. Turn the ignition off.
2. Inspect the Wheel Speed Sensor for proper mounting.
3. Inspect the Wheel Speed Sensor harness and connector.
  Were any problems found?
  
  Yes
  - Repair as necessary in accordance with the Service Information.
  - Perform the ABS VERIFICATION TEST. Refer to ABS VERIFICATION TEST .
  No
  - Go To 3.
CHECK (B222) REAR WHEEL SPEED SENSOR SUPPLY CIRCUIT VOLTAGE

Fig 1: Measuring Rear Wheel Speed Sensor Supply Circuit Voltage
Courtesy of CHRYSLER GROUP, LLC
1. Disconnect the Rear Wheel Speed Sensor harness connector.
2. Turn the ignition on.
3. Measure the voltage between the (B222) Rear Wheel Speed Sensor Supply circuit and ground.
  Is the voltage above 10 volts?
  
  Yes
  - Go To 4.
  No
  - Go To 6.
(B222) REAR WHEEL SPEED SENSOR SUPPLY CIRCUIT FOR A SHORT TO VOLTAGE

Fig 2: Measuring Rear Wheel Speed Sensor Supply Circuit Voltage
Courtesy of CHRYSLER GROUP, LLC
1. Turn the ignition off.
2. Disconnect the ABS Module harness connector.
3. Turn the ignition on.
4. Measure the voltage of the (B222) Rear Wheel Speed Sensor Supply circuit.
  Is there any voltage present?
  
  Yes
  - Repair the (B222) Rear Wheel Speed Sensor Supply circuit for a short to voltage.
  - Perform the ABS VERIFICATION TEST. Refer to ABS VERIFICATION TEST .
  No
  - Go To 5.
(B22) REAR WHEEL SPEED SENSOR SIGNAL CIRCUIT FOR A SHORT TO GROUND

Fig 3: Checking Rear Wheel Speed Sensor Signal Circuit For A Short To Ground
Courtesy of CHRYSLER GROUP, LLC
1. Turn the ignition off.
2. Measure the resistance between the (B22) Rear Wheel Speed Sensor Signal circuit and ground.
  Is the resistance above 5.0 ohms?
  
  Yes
  - Replace the Rear Wheel Speed Sensor in accordance with the Service Information.
  - Perform the ABS VERIFICATION TEST. Refer to ABS VERIFICATION TEST .
  No
  - Repair the (B22) Rear Wheel Speed Sensor Signal circuit for a short to ground.
  - Perform the ABS VERIFICATION TEST. Refer to ABS VERIFICATION TEST .
(B222) REAR WHEEL SPEED SENSOR SUPPLY CIRCUIT FOR A SHORT TO GROUND

Fig 4: Checking Rear Wheel Speed Sensor Supply Circuit For A Short To Ground
Courtesy of CHRYSLER GROUP, LLC
1. Turn the ignition off.
2. Disconnect the Antilock Brake Module harness connector.
  NOTE:
  Check connector - Clean/repair as necessary.
3. Measure the resistance between the (B222) Rear Wheel Speed Sensor Supply circuit and ground.
  Is the resistance above 5.0 Ohms?
  
  Yes
  - Go To 7.
  No
  - Repair the (B222) Rear Wheel Speed Sensor Supply circuit for a short to ground.
  - Perform the ABS VERIFICATION TEST. Refer to ABS VERIFICATION TEST .
(B222) REAR WHEEL SPEED SENSOR SUPPLY CIRCUIT FOR AN OPEN

Fig 5: Checking Rear Wheel Speed Sensor Supply Circuit For An Open
Courtesy of CHRYSLER GROUP, LLC
1. Measure the resistance of the (B222) Rear Wheel Speed Sensor Supply circuit.
  Is the resistance below 5 Ohms?
  
  Yes
  - Go To 8.
  No
  - Repair the open (B222) Rear Wheel Speed Sensor Supply circuit.
  - Perform the ABS VERIFICATION TEST. Refer to ABS VERIFICATION TEST .
(B22) REAR WHEEL SPEED SENSOR SIGNAL CIRCUIT FOR AN OPEN

Fig 6: Checking Rear Wheel Speed Sensor Signal Circuit For An Open
Courtesy of CHRYSLER GROUP, LLC
1. Measure the resistance of the (B22) Rear Wheel Speed Sensor Signal circuit.
  Is the resistance below 5 Ohms?
  
  Yes
  - Go To 9.
  No
  - Repair the open (B22) Rear Wheel Speed Sensor Signal circuit.
  - Perform the ABS VERIFICATION TEST. Refer to ABS VERIFICATION TEST .
(B22) REAR WHEEL SPEED SENSOR SIGNAL CIRCUIT FOR A SHORT TO VOLTAGE

Fig 7: Checking Rear Wheel Speed Sensor Signal Circuit For A Short To Voltage
Courtesy of CHRYSLER GROUP, LLC
1. Turn the ignition on.
2. Measure the voltage of the (B22) Rear Wheel Speed Sensor Signal circuit.
  Is there any voltage present?
  
  Yes
  - Repair the (B22) Rear Wheel Speed Sensor Signal circuit for a short to voltage.
  - Perform the ABS VERIFICATION TEST. Refer to ABS VERIFICATION TEST .
  No
  - Go To 10.
(B222) REAR WHEEL SPEED SENSOR SUPPLY CIRCUIT SHORTED TO THE (B22) REAR WHEEL SPEED SENSOR SIGNAL CIRCUIT

Fig 8: Checking Left Rear Wheel Speed Sensor Supply Circuit For A Short To The Left Rear Wheel Speed Sensor Signal Circuit
Courtesy of CHRYSLER GROUP, LLC
1. Turn the ignition off.
2. Measure the resistance between the (B222) Rear Wheel Speed Sensor Supply circuit and the (B22) Rear Wheel Speed Sensor Signal circuit at the Antilock Brake Module harness connector.
  Is the resistance below 5.0 Ohms?
  
  Yes
  - Repair (B222) Rear Wheel Speed Sensor Supply circuit for a short to the (B22) Rear Wheel Speed Sensor Signal circuit.
  - Perform the ABS VERIFICATION TEST. Refer to ABS VERIFICATION TEST .
  No
  - Replace the Antilock Brakes Module in accordance with the Service Information.
  - Perform the ABS VERIFICATION TEST. Refer to ABS VERIFICATION TEST .