DTC C050C-12: Left Rear Wheel Speed Sensor Circuit Short to Battery [12/2021 - 10/2022]: Description

The skid control 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 skid control 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 skid control 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
C050C-12	Left Rear Wheel Speed Sensor Circuit Short to Battery	The skid control sensor short signal is ON continuously for 0.5 seconds or more.	Rear skid control sensor LH Skid control sensor wire LH (No. 2 parking brake wire assembly) Wire harness and connector No. 2 skid control ECU (brake actuator assembly)	Comes on	SAE Code: C050F Output ECU: No. 2 skid control ECU (brake actuator assembly)