Tacoma

Toyota Tacoma 2015-2018 Brake Workshop Manual

Last Modified: 11-13-2015 6.6 C Doc ID: RM000005VA2000X
Model Year Start: 2016 Model: Tacoma Prod Date Range: [08/2015 - ]
Title: BRAKE CONTROL: VEHICLE STABILITY CONTROL SYSTEM (for Vacuum Brake Booster): C1401,C1402;
Front Speed Sensor RH Malfunction; 2016 MY Tacoma [08/2015 - ]
DTC C1401 Front Speed Sensor RH Malfunction
DTC C1402 Front Speed Sensor LH Malfunction
DESCRIPTION
The speed sensor detects wheel speed and sends the appropriate signals to the skid control ECU (brake actuator
assembly). These signals are used for brake control.
The 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 skid control ECU (brake actuator
assembly).
DTC
NO.
DETECTION
ITEM
DTC DETECTION CONDITION TROUBLE AREA
C1401
Front Speed
Sensor RH
Malfunction
Any of the following is detected:
At a vehicle speed of 10 km/h (6 mph) or
more, output voltage from one of the speed
sensors is less than that from the other
sensors for 15 seconds or more.
At a vehicle speed less than 10 km/h (6
mph), output from one of the speed sensors
is 0 km/h (0 mph) for 1 second or more.
At a vehicle speed of 10 km/h (6 mph) or
more, outputs from both front speed sensors
are 0 km/h (0 mph) for 15 seconds or more.
Front speed
sensor RH
Front axle with
ABS rotor bearing
assembly RH
Sensor installation
cardiagn.com

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