C0215

DTC C0200-C0215, C1235-C1239, or C1271-C1278:

DTC C0200-C0215, C1235-C1239, or C1271-C1278 (Cont.):

DTC C0200-C0215, C1235-C1239, or C1271-C1278

Circuit Description
As the wheel spins, the wheel speed sensor produces an alternating current (AC) signal. The electronic brake control module (EBCM) uses the frequency of the AC signal to calculate the wheel speed.

Conditions for Running the DTC

C0200, C0205, C0210, and C0215
The ignition is in the ON position.

C1235, C1236, C1238, and C1239
^ The ignition is in the ON position.
^ Vehicle speed of 20 km/h (12 mph) or more.

C1271, C1272, C1273, and C1274
^ The ignition is in the ON position.
^ Vehicle speed of 20 km/h (12 mph) or more.

C1275, C1276, C1277, and C1278
^ The ignition is in the ON position.
^ Vehicle speed of 20 km/h (12 mph) or more.

Conditions for Setting the DTC

C0200, C0205, C0210, and C0215
The EBCM detects one of the following conditions in the wheel speed sensor circuits:
^ An open
^ A short to ground
^ A short to voltage

C1235, C1236, C1238, and C1239
The EBCM detects noise in the wheel speed sensor signal for more than 5 seconds.

C1271, C1272, C1273, and C1274
The EBCM detects low output voltage of the wheel speed sensor.

C1275, C1276, C1277, and C1278
The EBCM detects a rapid change in the wheel speed which is determined to be unreasonable.

Action Taken When the DTC Sets
The following actions occur:
^ The EBCM disables the antilock brake system (ABS) for the duration of the ignition cycle.
^ The ABS indicator turns ON.

Conditions for Clearing the DTC

C0205, C0210, C0215, and C0220
The condition responsible for setting the DTC no longer exists and the scan tool Clear DTCs function is used.

C1235, C1236, C1238, and C1239
The condition responsible for setting the DTC no longer exists and the scan tool Clear DTCs function is used.

C1271, C1272, C1273, and C1274
The condition responsible for setting the DTC no longer exists and the scan tool Clear DTCs function is used.

C1275, C1276, C12771 and C1278
^ The condition responsible for setting the DTC no longer exists and the scan tool Clear DTCs function is used.
^ After the DTC is cleared, the ABS indicator will remain ON until the vehicle is road tested to verify the repair. Once the vehicle has been driven at a speed above 16 km/h (10 mph) for 20 seconds with no malfunctions present, the EBCM will turn OFF the ABS indicator.

Diagnostic Aids
Thoroughly inspect the wiring and the connectors. An incpmplete inspection of the wiring and the connectors may result in a misdiagnosis, causing a part replacement with the reappearance of the malfunction.
The following are possible causes of the malfunction:
^ A short to ground or a short to voltage in the wheel speed sensor circuitry
^ An open or high resistance in the wheel speed sensor circuit
^ A malfunctioning wheel speed sensor
^ A malfunctioning wheel speed sensor rotor
^ An internal EBCM malfunction
If an intermittent malfunction exists, refer to Testing for Intermittent and Poor Connections in Symptoms. A Symptoms - Antilock Brake System

Test Description
The numbers below refer to the step numbers on the diagnostic table.
3. This step tests the wheel speed sensor for the proper resistance value.