The wheel speed sensor receives ignition voltage from the electronic brake control module (EBCM) and provides a DC square wave signal back to the module. As the wheel spins, the EBCM uses the frequency of the square wave signal to calculate the wheel speed.
• | Ignition ON. |
• | Ignition voltage is greater than 10 volts. |
• | Two other wheel speeds are greater than 0 km/h. |
Simultaneous Dropout of Both Wheel Speed Sensors on One Axle.
• | The EBCM disables the antilock brake system (ABS) and StabiliTrak for the duration of the ignition cycle. |
• | A DIC message and/or a warning indicator may be displayed. |
• | The condition for setting the DTC is no longer present. |
• | The EBCM clears the history DTC when a current DTC is not detected in 40 consecutive drive cycles. |
Antilock Brake System Schematics
Control Module References for scan tool information
Verify that DTC C005A is not set.
⇒ | If the DTC is set, refer to DTC C0035-C0050, C1207-C1210, C1221-C1228, or C1232-C1235 |