Last Modified: 11-13-2015 6.6 C Doc ID: RM000000XI911CX
Model Year Start: 2016 Model: Tacoma Prod Date Range: [08/2015 - ]
Title: BRAKE CONTROL: VEHICLE STABILITY CONTROL SYSTEM (for Hydraulic Brake Booster):
C1271,C1272,C1401,C1402; Low Output Signal of Front Speed Sensor RH (Test Mode DTC); 2016 MY Tacoma
[08/2015 - ]
DTC C1271 Low Output Signal of Front Speed Sensor RH (Test Mode DTC)
DTC C1272 Low Output Signal of Front Speed Sensor LH (Test Mode DTC)
DTC C1401 Front Speed Sensor RH Malfunction
DTC C1402 Front Speed Sensor LH Malfunction
The speed sensor detects the wheel speed and sends the appropriate signals to the skid control ECU (master
cylinder solenoid). 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 (master
DTC DETECTION CONDITION TROUBLE AREA
Stored only during test mode.
Front speed sensor RH/LH
Front speed sensor rotor
RH/LH (front axle with ABS