Toyota Tacoma (2015-2018) Service Manual: Acceleration Sensor Internal Circuit (C1419,C1435)
DESCRIPTION
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 Code |
DTC Detection Condition |
Trouble Area |
|---|---|---|
|
C1419 |
A data malfunction signal is received from the acceleration sensor. |
Yaw rate and acceleration sensor (airbag sensor assembly) |
|
C1435 |
A data malfunction signal is received from the yaw rate and acceleration sensor. |
Yaw rate and acceleration sensor (airbag sensor assembly) |
WIRING DIAGRAM
Refer to DTCs C1232, C1243 and C1245 (See page
.gif)
).
CAUTION / NOTICE / HINT
NOTICE:
When replacing the yaw rate and acceleration sensor (airbag sensor assembly),
perform calibration (See page
).
PROCEDURE
|
1. |
CHECK CAN COMMUNICATION SYSTEM |
(a) Check for DTCs (See page
).
|
Result |
Proceed to |
|---|---|
|
CAN DTC is not output |
A |
|
CAN DTC is output |
B |
| B | .gif) |
GO TO CAN COMMUNICATION SYSTEM (HOW TO PROCEED WITH TROUBLESHOOTING) |
|
.gif)
|
2. |
REPLACE AIRBAG SENSOR ASSEMBLY |
(a) Replace the yaw rate and acceleration sensor (airbag sensor assembly) (See
page ).
| NEXT | |
END |
High Power Supply Voltage Malfunction (C1417)
DESCRIPTION
If a malfunction is detected in the power supply circuit, the skid control ECU
(housed in the master cylinder solenoid) stores this DTC and the fail-safe function
prohibits ABS/VSC/TR ...
Acceleration Sensor Malfunction (C1420)
DESCRIPTION
Refer to DTCs C1419 and C1435 (See page ).
DTC Code
DTC Detection Condition
Trouble Area
C1420
After the difference between ...
Other materials:
Vehicle Speed Sensor (C1A45)
DESCRIPTION
The blind spot monitor sensor receives vehicle speed signals from the skid control
ECU (brake actuator assembly) via CAN communication.
DTC Code
DTC Detection Condition
Trouble Area
C1A45
A fail flag is transmitted from the ...
Inspection
INSPECTION
PROCEDURE
1. INSPECT AUTO HIGH BEAM SWITCH
*a
Component without harness connected
(Auto High Beam Switch)
(a) Check the resistance.
(1) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
Tester C ...
Components
COMPONENTS
ILLUSTRATION
*A
w/ Fuel Tank Cover
*B
for Hydraulic Brake Booster
*1
FUEL TANK ASSEMBLY
*2
FUEL TANK INLET PIPE SUB-ASSEMBLY
*3
FUEL TANK VENT HOSE SUB-ASSEMBLY
...
