Diagnostic Test

WARNING: This page is about a different car, the 2011 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 DTCs.
3. Turn the ignition off.
4. Turn the ignition on.
5. With the scan tool, select View DTCs.
  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 TEST. 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: Checking Rear Wheel Speed Sensor Supply Circuit
Courtesy of CHRYSLER 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 SHORTED TO VOLTAGE

Fig 2: Checking Rear Wheel Speed Sensor Supply Circuit
Courtesy of CHRYSLER 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 SHORTED TO GROUND

Fig 3: Checking Rear Wheel Speed Sensor Signal Circuit For Short
Courtesy of CHRYSLER 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 ABS VERIFICATION TEST. Refer to ABS VERIFICATION TEST .
  No
  - Repair the (B22) Rear Wheel Speed Sensor Signal circuit for a short to ground.
  - Perform ABS VERIFICATION TEST. Refer to ABS VERIFICATION TEST .
(B222) REAR WHEEL SPEED SENSOR SUPPLY CIRCUIT SHORTED TO GROUND

Fig 4: Checking Rear Wheel Speed Sensor Supply Circuit For Short
Courtesy of CHRYSLER LLC
1. Turn the ignition off.
2. Disconnect the Anti-lock 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 OPEN

Fig 5: Checking Rear Wheel Speed Sensor Supply Circuit For Open
Courtesy of CHRYSLER 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 OPEN

Fig 6: Checking Rear Wheel Speed Sensor Signal Circuit For Open
Courtesy of CHRYSLER 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 SHORTED TO VOLTAGE

Fig 7: Checking Rear Wheel Speed Sensor Signal Circuit For Short
Courtesy of CHRYSLER 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 Rear Wheel Speed Sensor Signal & Supply Circuit For Short
Courtesy of CHRYSLER 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 Anti-lock 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 Anti-Lock Brakes Module in accordance with the Service Information.
  - Perform the ABS VERIFICATION TEST. Refer to ABS VERIFICATION TEST .