Last Modified: 11-13-2015 6.6 C Doc ID: RM000002D4700NX
Model Year Start: 2016 Model: Tacoma Prod Date Range: [08/2015 - ]
Title: BRAKE CONTROL: VEHICLE STABILITY CONTROL SYSTEM (for Hydraulic Brake Booster):
C1232,C1243,C1245,C1279; Acceleration Sensor Stuck Malfunction; 2016 MY Tacoma [08/2015 - ]
DTC C1232 Acceleration Sensor Stuck Malfunction
DTC C1243 Acceleration Sensor Stuck Malfunction
DTC C1245 Acceleration Sensor Output Malfunction
DTC C1279 Acceleration Sensor Output Voltage Malfunction (Test Mode DTC)
The skid control ECU (master cylinder solenoid) receives signals from the yaw rate and acceleration (airbag
sensor assembly) via the CAN communication system.
The airbag sensor assembly has a built-in yaw rate and acceleration sensor and detects the vehicle's condition
using 2 circuits (GL1, GL2).
If there is trouble in the bus lines between the yaw rate and acceleration sensor (airbag sensor assembly) and the
CAN communication system, DTCs U0123 (yaw rate sensor communication trouble) and U0124 (acceleration
sensor communication trouble) are stored.
These DTCs are also output when calibration has not been completed.
DTC DETECTION CONDITION TROUBLE AREA
At vehicle speed of 10 km/h (6 mph) or more, signal from
either GL1 or GL2 does not change for 30 seconds or more.
Harness or connector
Yaw rate and acceleration
sensor (airbag sensor
CAN communication system
Following condition repeats 16 times.
GL1 and GL2 do not change by more than 2LSB
when vehicle decelerates from 30 km/h (19 mph)
to 0 km/h (0 mph).
Following condition continues for at least 60 seconds.
Difference between values calculated from
acceleration sensor value and vehicle speed
exceeds 0.35 G.
C1279 Detected only during test mode