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Home >> Chrysler >> 2006 >> PT Cruiser Base, 2D Convertible, Standard >> Repair and Diagnosis >> Brakes >> Traction Control >> Anti-Lock Brake System - Electrical Diagnostics >> Abs Electrical Diagnostics >> DTC Troubleshooting >> C102B-Right Rear Wheel Speed Sensor Circuit >> Diagnostic Test

Diagnostic Test

  1. 1)  CHECK FOR DTC C102B-RIGHT REAR WHEEL SPEED SENSOR CIRCUIT 
    NOTE: This DTC must be active for the results of this test to be valid.

    Turn the ignition on.

    With the scan tool, record and erase DTCs.

    Cycle the ignition switch from off to on.

    With the scan tool, read DTCs.

    NOTE: The Anti-Lock Brake Module must sense ALL 4 wheels at 12 km/h (7.5 mph) before it will extinguish the ABS indicators.

    Does the scan tool display: C102B-RIGHT REAR WHEEL SPEED SENSOR CIRCUIT? 

    Yes 

    1. Go To Step  2).

    No 

    1. 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.
    2. Refer to the ABS-INTERMITTENT CONDITION TEST. (Refer to BRAKES - DIAGNOSIS AND TESTING - ABS-INTERMITTENT CONDITION) .
  2. 2)  CHECK CONNECTOR/TERMINAL FOR DAMAGE 
    NOTE: Check all terminals for broken, bent, pushed out, or corroded terminals.

    Turn the ignition off.

    Inspect the Anti-Lock Brake Module harness connector, Right Rear WSS, and Right Rear WSS harness connector.

    Is the Right Rear WSS or any of the connectors/terminals damaged? 

    Yes 

    1. Repair as necessary.
    2. Perform ABS VERIFICATION TEST. (Refer to BRAKES - STANDARD PROCEDURE - ABS VERIFICATION TEST)  .

    No 

    1. Go To Step  3).
  3. 3)  CHECK (B2) RIGHT REAR WSS 12 VOLT SUPPLY CIRCUIT VOLTAGE 
    Fig 1: CHECKING (B2) RIGHT REAR WSS 12 VOLT SUPPLY CIRCUIT VOLTAGE
    GC0041184Courtesy of DAIMLERCHRYSLER CORP.

    Disconnect the Right Rear WSS harness connector.

    Turn the ignition on.

    Measure the voltage of the (B2) Right Rear WSS 12 Volt Supply circuit.

    Is the voltage above 10.0 volts? 

    Yes 

    1. Go To Step  6).

    No 

    1. Go To Step  4).
  4. 4) CHECK (B2) RIGHT REAR WSS 12 VOLT SUPPLY CIRCUIT FOR A SHORT TO GROUND 
    Fig 2: CHECKING (B2) RIGHT REAR WSS 12 VOLT SUPPLY CIRCUIT FOR A SHORT TO GROUND
    GC0041185Courtesy of DAIMLERCHRYSLER CORP.

    Turn the ignition off.

    Disconnect the Right Rear WSS harness connector.

    Disconnect the Anti-Lock Brake Module harness connector.

    Using a 12-volt test light connected to 12-volts, probe the (B2) Right Rear WSS Supply circuit.

    Does the test light illuminate brightly? 

    Yes 

    1. Repair the (B2) Right Rear WSS Supply circuit for a short to ground.
    2. Perform ABS VERIFICATION TEST. (Refer to BRAKES - STANDARD PROCEDURE - ABS VERIFICATION TEST)  .

    No 

    1. Go To Step  5).
  5. 5)  CHECK (B2) RIGHT REAR WSS 12 VOLT SUPPLY CIRCUIT FOR AN OPEN 
    Fig 3: CHECKING (B2) RIGHT REAR WSS 12 VOLT SUPPLY CIRCUIT FOR OPEN
    GC0041187Courtesy of DAIMLERCHRYSLER CORP.

    Connect a jumper wire between ground and the (B2) Right Rear WSS Supply circuit in the Anti-Lock Brakes Module harness connector.

    Using a 12-volt test light connected to 12-volts, probe the (B2) Right Rear WSS Supply circuit.

    Does the test light illuminate brightly? 

    Yes 

    1. Replace the Anti-Lock Brakes Module in accordance with the Service Information.
    2. Perform ABS VERIFICATION TEST. (Refer to BRAKES - STANDARD PROCEDURE - ABS VERIFICATION TEST)  .

    No 

    1. Repair the (B2) Right Rear WSS Supply circuit for an open.
    2. Perform ABS VERIFICATION TEST. (Refer to BRAKES - STANDARD PROCEDURE - ABS VERIFICATION TEST)  .
  6. 6)  CHECK (B1) RIGHT REAR WSS SIGNAL CIRCUIT FOR A SHORT TO GROUND 
    Fig 4: CHECKING (B1) RIGHT REAR WSS SIGNAL CIRCUIT FOR SHORT TO GROUND
    GC0041189Courtesy of DAIMLERCHRYSLER CORP.

    Using a 12-volt test light connected to 12-volts, probe the (B1) Right Rear WSS Signal circuit.

    Does the test light illuminate brightly? 

    Yes 

    1. Repair the (B1) Right Rear WSS Signal circuit for a short to ground.
    2. Perform ABS VERIFICATION TEST. (Refer to BRAKES - STANDARD PROCEDURE - ABS VERIFICATION TEST)  .

    No 

    1. Go To Step  7).
  7. 7)  CHECK (B1) RIGHT REAR WSS SIGNAL CIRCUIT FOR AN OPEN 
    Fig 5: CHECKING (B1) RIGHT REAR WSS SIGNAL CIRCUIT FOR OPEN
    GC0041191Courtesy of DAIMLERCHRYSLER CORP.

    Connect a jumper wire between ground and the (B1) Right Rear WSS Signal circuit in the Anti-Lock Brakes Module harness connector.

    Using a 12-volt test light connected to 12-volts, probe the (B1) Right Rear WSS Signal circuit.

    Does the test light illuminate brightly? 

    Yes 

    1. Go To Step  8).

    No 

    1. Repair the (B1) Right Rear WSS Signal circuit for an open.
    2. Perform ABS VERIFICATION TEST. (Refer to BRAKES - STANDARD PROCEDURE - ABS VERIFICATION TEST)  .
  8. 8)  CHECK (B1) RIGHT REAR WSS SIGNAL CIRCUIT SHORT TO VOLTAGE 
    Fig 6: CHECKING (B1) RIGHT REAR WSS SIGNAL CIRCUIT FOR SHORT TO VOLTAGE
    GC0041190Courtesy of DAIMLERCHRYSLER CORP.

    Turn the ignition on.

    Remove all jumper wires.

    Using a 12-volt test light connected to 12-volts, probe the (B1) Right Rear WSS Signal circuit.

    Does the test light illuminate brightly? 

    Yes 

    1. Repair the (B1) Right Rear WSS Signal circuit for a short to voltage.
    2. Perform ABS VERIFICATION TEST. (Refer to BRAKES - STANDARD PROCEDURE - ABS VERIFICATION TEST)  .

    No 

    1. Go To Step  9).
  9. 9)  CHECK (B1) RIGHT REAR WSS SIGNAL CIRCUIT FOR A SHORT TO (B2) RIGHT REAR WSS 12 VOLT SUPPLY CIRCUIT 
    Fig 7: CHECKING (B1) RIGHT REAR WSS SIGNAL CIRCUIT FOR A SHORT TO (B2) RIGHT REAR WSS 12 VOLT SUPPLY CIRCUIT
    GC0041183Courtesy of DAIMLERCHRYSLER CORP.

    Turn the ignition off.

    Measure the resistance between the (B1) Right Rear WSS Signal circuit and the (B2) Right Rear WSS Supply circuit.

    Is the resistance above 5.0 ohms? 

    Yes 

    Go To Step  10).

    No 

    1. Repair the (B1) Right Rear WSS Signal circuit and the (B2) Right Rear WSS Supply circuit for a short together.
    2. Perform ABS VERIFICATION TEST. (Refer to BRAKES - STANDARD PROCEDURE - ABS VERIFICATION TEST)  .
  10. 10)  RIGHT REAR WHEEL SPEED SENSOR 

    Replace the Right Rear Wheel Speed Sensor in accordance with the Service Information.

    Perform ABS VERIFICATION TEST. (Refer to BRAKES - STANDARD PROCEDURE - ABS VERIFICATION TEST)  .

    CAUTION: Ensure brake capability is available before road testing.

    Road test the vehicle over 40 km/h (25 mph).

    NOTE: Vehicle must be driven above 40 km/h (25 mph) for set conditions to be meet.

    With the scan tool, read ABS DTCs.

    NOTE: The Anti-Lock Brake Module must sense ALL 4 wheels at 12 km/h (7.5 mph) before it will extinguish the ABS indicators.

    Did DTC C102B-RIGHT REAR WHEEL SPEED SENSOR CIRCUIT reset? 

    Yes 

    1. Replace the Anti-Lock Brakes Module in accordance with the Service Information.
    2. Perform ABS VERIFICATION TEST. (Refer to BRAKES - STANDARD PROCEDURE - ABS VERIFICATION TEST)  .

    No 

    1. Test Complete.
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