C1035

C1035-RIGHT REAR WHEEL SPEED COMPARATIVE PERFORMANCE

For a complete wiring diagram Refer to Diagram/Electrical. Electrical Diagrams

- When Monitored:

With the ignition on and no system under voltage or over voltage condition present.

- Set Condition:

If the measured wheel speed sensor feedback voltage is less than 0.304 volts, the sensor is considered open.

If the measured wheel speed sensor feedback voltage is greater than 1.39 volts, or if a sensor over current condition is detected, the sensor is considered shorted.

If a shorted or open condition is present for more than 100 msec, the DTC will set.





Diagnostic Test

1. DTC IS ACTIVE

Turn the ignition on.

With the scan tool, clear DTCs.

Turn the ignition off.

Turn the ignition on.

With the scan tool, select View DTCs.

Is the status Active for this DTC?

Yes

- Go To 2

No

- Go To 15

2. WHEEL SPEED SENSOR INSPECTION

Turn the ignition off.

Inspect the Wheel Speed Sensor for proper mounting.

Inspect the Wheel Speed Sensor harness and connector.

Inspect the Wheel Speed Sensor for excessive debris on the sensor.

Were any problems found?

Yes

- Repair as necessary.
- Perform ABS Verification ABS Verification Test

No

- Go To 3

3. TONE WHEEL DAMAGED/MISSING

Inspect the Tone Wheel.

NOTE: The Tone Wheel Teeth should be perfectly square, not bent or nicked.

Were any problems found?

Yes

- Replace the Tone Wheel.
- Perform ABS Verification ABS Verification Test

No

- Go To 4

4. EXCESSIVE WHEEL SPEED SENSOR AIR GAP

Measure the Wheel Speed Sensor Air Gap.

Were any problems found?

Yes

- Repair as necessary.
- Perform ABS Verification ABS Verification Test

No

- Go To 5

5. WHEEL BEARING LOOSE/BINDING

Inspect the wheel bearings for excessive run out or improper clearance.

Were any problems found?

Yes

- Repair as necessary.
- Perform ABS Verification ABS Verification Test

No

- Go To 6

6. (B2) REAR WHEEL SPEED SENSOR SUPPLY CIRCUIT SHORTED TO GROUND





Turn the ignition off.

Disconnect the Rear Wheel Speed Sensor harness connector.

Disconnect the Anti-lock Brake Module harness connector.

NOTE: Check connector - Clean/repair as necessary.

Measure the resistance between the (B2) Rear Wheel Speed Sensor Supply circuit and ground.

Is the resistance above 5.0 ohms?

Yes

- Go To 7

No

- Repair the (B2) Rear Wheel Speed Sensor Supply circuit for a short to ground.
- Perform ABS Verification ABS Verification Test

7. (B1) REAR WHEEL SPEED SENSOR SIGNAL CIRCUIT SHORTED TO GROUND





Measure the resistance between the (B1) Rear Wheel Speed Sensor Signal circuit and ground.

Is the resistance above 5.0 ohms?

Yes

- Go To 8

No

- Repair the (B1) Rear Wheel Speed Sensor Signal circuit for a short to ground.
- Perform ABS Verification ABS Verification Test

8. (B2) REAR WHEEL SPEED SENSOR SUPPLY CIRCUIT OPEN





Measure the resistance of the (B2) Rear Wheel Speed Sensor Supply circuit.

Is the resistance below 5 ohms?

Yes

- Go To 9

No

- Repair the open (B2) Rear Wheel Speed Sensor Supply circuit.
- Perform ABS Verification ABS Verification Test

9. (B1) REAR WHEEL SPEED SENSOR SIGNAL CIRCUIT OPEN





Measure the resistance of the (B1) Rear Wheel Speed Sensor Signal circuit.

Is the resistance below 5 ohms?

Yes

- Go To 10

No

- Repair the open (B1) Rear Wheel Speed Sensor Signal circuit.
- Perform ABS Verification ABS Verification Test

10. (B2) REAR WHEEL SPEED SENSOR SUPPLY CIRCUIT SHORTED TO VOLTAGE





Turn the ignition on.

Measure the voltage of the (B2) Rear Wheel Speed Sensor Supply circuit.

Is there any voltage present?

Yes

- Repair (B2) Rear Wheel Speed Sensor Supply circuit for a short to voltage.
- Perform ABS Verification ABS Verification Test

No

- Go To 11

11. (B1) REAR WHEEL SPEED SENSOR SIGNAL CIRCUIT SHORTED TO VOLTAGE





Measure the voltage of the (B1) Rear Wheel Speed Sensor Signal circuit.

Is there any voltage present?

Yes

- Repair the (B1) Rear Wheel Speed Sensor Signal circuit for a short to voltage.
- Perform ABS Verification ABS Verification Test

No

- Go To 12

12. (B2) REAR WHEEL SPEED SENSOR SUPPLY CIRCUIT SHORTED TO THE (B1) REAR WHEEL SPEED SENSOR SIGNAL CIRCUIT





Turn the ignition off.

Measure the resistance between the (B2) Rear Wheel Speed Sensor Supply circuit and the (B1) Rear Wheel Speed Sensor Signal circuit at the Anti-lock Brake Module harness connector.

Is the resistance below 5.0 ohms?

Yes

- Repair (B2) Rear Wheel Speed Sensor Supply circuit for a short to the (B1) Rear Wheel Speed Sensor Signal circuit.
- Perform ABS Verification ABS Verification Test

No

- Go To 13

13. REAR WHEEL SPEED SENSOR





Turn the ignition off.

Connect the Rear Wheel Speed Sensor harness connector.

Measure the resistance between the (B2) Rear Wheel Speed Sensor Supply circuit and (B1) Rear Wheel Speed Sensor Signal circuit at the Anti-lock Brake Module harness connector.

NOTE: The resistance should be approximately 1600-2300 ohms at 76°F (24.5°C).

Is the resistance within the noted range?

Yes

- Go to 14

No

- Replace the Rear Wheel Speed Sensor.
- Perform ABS Verification ABS Verification Test

14. ANTI-LOCK BRAKE MODULE

Turn the ignition off.

Inspect the related wiring harness. Look for any chafed, pierced, pinched, or partially broken wires.

Inspect the related wire harness connectors. Look for broken, bent, pushed out, or corroded terminals.

Refer to any Technical Service Bulletins that may apply.

Were any problems found?

Yes

- Repair as necessary.
- Perform ABS Verification ABS Verification Test

No

- Replace the Anti-lock Brake Module.
- Perform ABS Verification ABS Verification Test

15. WIRING HARNESS INSPECTION

Turn the ignition off.

NOTE: Towing the vehicle with ignition ON may set this DTC.

Inspect the related wiring harness. Look for any chafed, pierced, pinched, or partially broken wires.

Inspect the related wire harness connectors. Look for broken, bent, pushed out, or corroded terminals.

Refer to any Technical Service Bulletins that may apply.

Were any problems found?

Yes

- Repair as necessary.
- Perform ABS Verification ABS Verification Test

No

- Test Complete.