C1211

DTC C1202 FL WHEEL SPEED SENSOR-NO SIGNAL
DTC C1205 FR WHEEL SPEED SENSOR-NO SIGNAL
DTC C1208 RL WHEEL SPEED SENSOR-NO SIGNAL
DTC C1211 RR WHEEL SPEED SENSOR-NO SIGNAL

COMPONENT LOCATION

Refer to DTC C1200. C1200

GENERAL DESCRIPTION

Refer to DTC C1200. C1200

DTC DESCRIPTION

The ABS ECU monitors the wheel speed sensor signal continuously. This code is set when there is no wheel speed signals within 10 ms to 20 ms at a vehicle speed > 43.2 km/h or a deviation between sensors exceed the threshold or one or two wheels are at 2.75 km/h while the vehicle speed is at 12 km/h. Warning lamp is turned OFF unless fault is detected any more when the IG KEY is turned ON again, and wheel speed is more than 12 Km/h.

DTC DETECTING CONDITION:

MONITOR SCANTOOL DATA

1. Engine "ON".
2. Connect scan tool to Data Link Connector(DLC).
3. Start and drive vehicle in gear and maintain vehicle speed at approximately 50 km/h or more (31 mph or more)
4. Monitor the "Wheel speed sensor" parameter on the scan tool.

Specification: Approximately 50 km/h or more (31 mph or more):

5. Is parameter displayed within specifications?

YES
^ Fault is intermittent caused by poor connection in wheel speed sensor harness and/or HECU's connector or was repaired and HECU memory was not cleared. Go to "Component Inspection" procedure.

NO
^ Check for improper installation of wheel speed sensor. If NG, repair as necessary and then go to "Verification of vehicle Repair" procedure.
^ Check for damage of rotor teeth or wheel bearing. If NG, repair as necessary and then go to "Verification of vehicle Repair" procedure.
^ Substitute with a known-good wheel speed sensor and check for proper operation. If problem is corrected, replace wheel speed sensor and then go to "Verification of Vehicle Repair" procedure.
^ If OK, Go to "Component Inspection" Procedure.

COMPONENT INSPECTION

1. Ignition "OFF".
2. Engine "ON".
3. Start and drive vehicle in gear and maintain vehicle speed at approximately 50 km/h or more(31 mph or more).
4. Does warning lamp remain On?

YES
^ Substitute with a known-good HECU and check for proper operation. If problem is corrected, replace HECU and then go to "Verification of Vehicle Repair" procedure.

NO
^ Fault is intermittent caused by open or short of wheel speed sensor harness, faulty wheel speed sensor. Go to the applicable troubleshooting procedure.

VERIFICATION OF VEHICLE REPAIR

After a repair, it is essential to verify that the fault has been corrected.
1. Connect scan tool and select "Diagnostic Trouble Codes(DTCs)" mode
2. Using a scan tool, clear DTC.
3. Operate the vehicle within DTC Detecting Condition in General Information. (Start and drive vehicle in gear and maintain vehicle speed at approximately 50 km/h or more (31 mph or more))
4. Are any DTCs present?

YES
^ Go to the applicable troubleshooting procedure.

NO
^ System performing to specification at this time.