C1015
C1015-RIGHT FRONT WHEEL SPEED SENSOR CIRCUIT (340)
- 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 .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.
Possible Causes
INTERMITTENT RIGHT FRONT WHEEL SPEED SENSOR DTC
(B7) RIGHT FRONT WHEEL SPEED SENSOR SUPPLY CIRCUIT SHORT TO GROUND
(B6) RIGHT FRONT WHEEL SPEED SENSOR SIGNAL CIRCUIT SHORT TO GROUND
(B7) RIGHT FRONT WHEEL SPEED SENSOR SUPPLY CIRCUIT OPEN
(B6) RIGHT FRONT WHEEL SPEED SENSOR SIGNAL CIRCUIT OPEN
(B7) RIGHT FRONT WHEEL SPEED SENSOR SUPPLY CIRCUIT SHORTED TO VOLTAGE
(B6) RIGHT FRONT WHEEL SPEED SENSOR SIGNAL CIRCUIT SHORTED TO VOLTAGE
(B7) RIGHT FRONT WHEEL SPEED SENSOR SUPPLY CIRCUIT SHORTED TO THE (B6) RIGHT FRONT
WHEEL SPEED SENSOR SIGNAL CIRCUIT
TONE WHEEL
EXCESSIVE RIGHT FRONT WHEEL SPEED SENSOR AIR GAP
WHEEL BEARING
RIGHT FRONT WHEEL SPEED SENSOR
ANTI-LOCK BRAKE MODULE
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 TEST - VER 1. EBC 340
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 TEST - VER 1. EBC 340
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 TEST - VER 1. EBC 340
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 TEST - VER 1. EBC 340
No >> Go To 6
6. (B7) RIGHT FRONT WHEEL SPEED SENSOR SUPPLY CIRCUIT SHORTED TO GROUND
Turn the ignition off. Disconnect the Right Front 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 (B7) Right Front Wheel Speed Sensor Supply circuit and ground.
Is the resistance above 5.0 ohms?
Yes >> Go To 7
No >> Repair the (B7) Right Front Wheel Speed Sensor Supply circuit for a short to ground. Perform ABS VERIFICATION TEST - VER 1. EBC 340
7. (B6) RIGHT FRONT WHEEL SPEED SENSOR SIGNAL CIRCUIT SHORTED TO GROUND
Measure the resistance between the (B6) Right Front Wheel Speed Sensor Signal circuit and ground.
Is the resistance above 5.0 ohms?
Yes >> Go To 8
No >> Repair the (B6) Right Front Wheel Speed Sensor Signal circuit for a short to ground. Perform ABS VERIFICATION TEST - VER 1. EBC 340
8. (B7) RIGHT FRONT WHEEL SPEED SENSOR SUPPLY CIRCUIT OPEN
Measure the resistance of the (B7) Right Front Wheel Speed Sensor Supply circuit.
Is the resistance below 5.0 ohms?
Yes >> Go To 9
No >> Repair the open (B7) Right Front Wheel Speed Sensor Supply circuit. Perform ABS VERIFICATION TEST - VER 1. EBC 340
9. (B6) RIGHT FRONT WHEEL SPEED SENSOR SIGNAL CIRCUIT OPEN
Measure the resistance of the (B6) Right Front Wheel Speed Sensor Signal circuit.
Is the resistance below 5.0 ohms?
Yes >> Go To 10
No >> Repair the open (B6) Right Front Wheel Speed Sensor Signal circuit. Perform ABS VERIFICATION TEST - VER 1. EBC 340
10. (B7) RIGHT FRONT WHEEL SPEED SENSOR SUPPLY CIRCUIT SHORTED TO VOLTAGE
Turn the ignition on. Measure the voltage of the (B7) Right Front Wheel Speed Sensor Supply circuit.
Is there any voltage present?
Yes >> Repair (B7) Right Front Wheel Speed Sensor Supply circuit for a short to voltage. Perform ABS VERIFICATION TEST - VER 1. EBC 340
No >> Go To 11
11. (B6) RIGHT FRONT WHEEL SPEED SENSOR SIGNAL CIRCUIT SHORTED TO VOLTAGE
Measure the voltage of the (B6) Right Front Wheel Speed Sensor Signal circuit.
Is there any voltage present?
Yes >> Repair the (B6) Right Front Wheel Speed Sensor Signal circuit for a short to voltage. Perform ABS VERIFICATION TEST - VER 1. EBC 340
No >> Go To 12
12. (B7) RIGHT FRONT WHEEL SPEED SENSOR SUPPLY CIRCUIT SHORTED TO THE (B6) RIGHT FRONT WHEEL SPEED SENSOR SIGNAL CIRCUIT
Turn the ignition off. Measure the resistance between the (B7) Right Front Wheel Speed Sensor Supply circuit and the (B6) Right Front Wheel Speed Sensor Signal circuit at the Anti-lock Brake Module harness connector.
Is the resistance below 5.0 ohms?
Yes >> Repair (B7) Right Front Wheel Speed Sensor Supply circuit for a short to the (B6) Right Front Wheel Speed Sensor Signal circuit. Perform ABS VERIFICATION TEST - VER 1. EBC 340
No >> Go To 13
13. RIGHT FRONT WHEEL SPEED SENSOR
Turn the ignition off. Connect the Right Front Wheel Speed Sensor harness connector. Measure the resistance between the (B7) Right Front Wheel Speed Sensor Supply circuit and (B6) Right Front 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 Right Front Wheel Speed Sensor. Perform ABS VERIFICATION TEST - VER 1. EBC 340
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 TEST - VER 1. EBC 340
No >> Replace the Anti-lock Brake Module. Perform ABS VERIFICATION TEST - VER 1. EBC 340
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 TEST - VER 1. EBC 340
No >> Test Complete.