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C102B






C102B-RIGHT REAR WHEEL SPEED SENSOR CIRCUIT





For a complete wiring diagram, refer to the Wiring Information.

- When Monitored:
With the ignition on.

- Set Condition:
If the Right Rear Wheel Speed Sensor circuit fails the diagnostic test.





1. VERIFY THE DTC IS ACTIVE

NOTE: This DTC must be active for the results of this test to be valid.

1. Turn the ignition on.
2. With the scan tool, record and erase DTCs.
3. Cycle the ignition switch from off to on.
4. With the scan tool, read DTCs.

Is the DTC active at this time?

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. ABS Intermittent Condition Test.

2. CHECK HARNESS CONNECTOR/TERMINAL FOR DAMAGE

NOTE: Check all terminals for broken, bent, pushed out, or corroded terminals.

1. Turn the ignition off.
2. Inspect the ABS 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

- Repair as necessary.
- Perform the ABS VERIFICATION TEST. ABS Verification Test.

No

- Go To 3

3. CHECK THE (B2) RIGHT REAR WSS SUPPLY CIRCUIT FOR VOLTAGE




1. Disconnect the Right Rear WSS harness connector.
2. Turn the ignition on.
3. Measure the voltage of the (B2) Right Rear WSS Supply circuit.

Is the voltage above 10.0 volts?

Yes

- Go To 7

No

- Go To 4

4. CHECK THE (B2) RIGHT REAR WSS SUPPLY CIRCUIT FOR A SHORT TO GROUND




1. Turn the ignition off.
2. Disconnect the ABS Module harness connector.
3. 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

- Repair the (B2) Right Rear WSS Supply circuit for a short to ground.
- Perform the ABS VERIFICATION TEST. ABS Verification Test.

No

- Go To 5

5. CHECK THE (B2) RIGHT REAR WSS SUPPLY CIRCUIT FOR AN OPEN OR HIGH RESISTANCE




1. Connect a jumper wire between ground and the (B2) Right Rear WSS Supply circuit in the ABS Module harness connector.
2. 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

- Go To 6

No

- Repair the (B2) Right Rear WSS Supply circuit for an open or high resistance.
- Perform the ABS VERIFICATION TEST. ABS Verification Test.

6. CHECK THE (B1) RIGHT REAR WSS SIGNAL CIRCUIT AND (B2) RIGHT REAR WSS SUPPLY CIRCUIT SHORTED TOGETHER




1. Remove all jumper wires.
2. 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

- Replace the Anti-Lock Brake System (ABS) Module. Anti-Lock Brake System Module - Removal.
- Perform ABS VERIFICATION TEST. ABS Verification Test.

No

- Repair the (B1) Right Rear WSS Signal circuit and the (B2) Right Rear WSS Supply circuit for a short together.
- Perform ABS VERIFICATION TEST. ABS Verification Test.

7. CHECK THE (B1) RIGHT REAR WSS SIGNAL CIRCUIT FOR A SHORT TO VOLTAGE




1. Turn the ignition off.
2. Disconnect the ABS Module harness connector.
3. Turn the ignition on.
4. Measure the voltage between the (B1) Right Rear WSS Signal circuit and ground.

Is the voltage above one volt?

Yes

- Repair the (B1) Right Rear WSS Signal circuit for a short to voltage.
- Perform the ABS VERIFICATION TEST. ABS Verification Test.

No

- Go To 8

8. CHECK THE (B1) RIGHT REAR WSS SIGNAL CIRCUIT FOR A SHORT TO GROUND




1. Turn the ignition off.
2. 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

- Repair the (B1) Right Rear WSS Signal circuit for a short to ground.
- Perform the ABS VERIFICATION TEST. ABS Verification Test.

No

- Go To 9

9. CHECK THE (B1) RIGHT REAR WSS SIGNAL CIRCUIT FOR AN OPEN OR HIGH RESISTANCE




1. Connect a jumper wire between ground and the (B1) Right Rear WSS Signal circuit in the ABS Module harness connector.
2. 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

- Go To 10

No

- Repair the (B1) Right Rear WSS Signal circuit for an open or high resistance.
- Perform the ABS VERIFICATION TEST. ABS Verification Test.

10. CHECK THE (B1) RIGHT REAR WSS SIGNAL CIRCUIT AND (B2) RIGHT REAR WSS SUPPLY CIRCUIT SHORTED TOGETHER




1. Remove all jumper wires.
2. 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 11
No

- Repair the (B1) Right Rear WSS Signal circuit and the (B2) Right Rear WSS Supply circuit for a short together.
- Perform the ABS VERIFICATION TEST. ABS Verification Test.

11. RIGHT REAR WHEEL SPEED SENSOR
1. Replace the Right Rear Wheel Speed Sensor. Wheel Speed Sensor - Removal
2. Perform the ABS VERIFICATION TEST. ABS Verification Test.

WARNING: To avoid possible serious or fatal injury, check brake capability is available before road testing.

3. 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 met.

4. With the scan tool, read ABS DTCs.

Does the DTC remain active?

Yes

- Replace the Anti-Lock Brake System (ABS) Module. Anti-Lock Brake System Module - Removal.
- Perform ABS VERIFICATION TEST. ABS Verification Test

No

- Test Complete.

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