DTC C0500-12: Left Front Wheel Speed Sensor Circuit Short to Battery [11/2021 - 10/2023]: Description

The speed sensor detects wheel speed and sends the appropriate signals to the No. 2 skid control ECU (brake actuator assembly). These signals are used for brake control.

Speed sensor rotors have rows of alternating N and S magnetic poles, and their magnetic fields change when the rotors turn.

Each speed sensor detects that magnetic change and sends a pulse signal to the No. 2 skid control ECU (brake actuator assembly).

HINT:

When the connectors between the speed sensor and No. 2 skid control ECU (brake actuator assembly) are connected, the following waveform is output.

DTC No.	Detection Item	DTC Detection Condition	Trouble Area	MIL	Note
C0500-12	Left Front Wheel Speed Sensor Circuit Short to Battery	The speed sensor short signal is ON continuously for 0.5 seconds or more.	Front speed sensor LH Wire harness and connector No. 2 skid control ECU (brake actuator assembly)	Comes on	SAE Code: C0503 Output ECU: No. 2 skid control ECU (brake actuator assembly)