Toyota Tacoma (2015-2018) Service Manual: Acceleration Sensor Internal Circuit (C1419,C1435)
DESCRIPTION
The skid control ECU (brake actuator assembly) receives signals from the yaw rate and acceleration sensor (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 condition.
If there is trouble in the bus lines between the acceleration sensor (airbag sensor assembly) and the CAN communication system, DTCs U0124 (Lost Communication with Lateral Acceleration Sensor Module) are set.
These DTCs are also output when calibration has not been completed.
|
DTC No. |
Detection Item |
DTC Detection Condition |
Trouble Area |
|---|---|---|---|
|
C1419 |
Acceleration Sensor Internal Circuit |
A data malfunction signal is received from the acceleration sensor. |
Acceleration sensor (Airbag sensor assembly) |
|
C1435 |
Yaw Rate Sensor Internal Circuit |
A data malfunction signal is received from the yaw rate sensor. |
Yaw rate sensor (Airbag sensor assembly) |
CAUTION / NOTICE / HINT
NOTICE:
When replacing the yaw rate and acceleration sensor (airbag sensor assembly),
perform zero point calibration and store system information (See page
.gif)
).
HINT:
When U0124 and/or U0126 is output together with C1419 and/or C1435, inspect and
repair the trouble areas indicated by U0124 and/or U0126 first (See page
).
PROCEDURE
|
1. |
REPLACE AIRBAG SENSOR ASSEMBLY |
(a) Replace the airbag sensor assembly (See page
).
HINT:
If troubleshooting has been carried out according to the Problem Symptoms Table,
refer back to the table and proceed to the next step (See page
).
| NEXT | .gif) |
END |
High Power Supply Voltage Malfunction (C1417)
DESCRIPTION
If a malfunction is detected in the power supply circuit, the skid control ECU
(brake actuator assembly) stores this DTC and the fail-safe function prohibits ABS
operation.
This DTC ...
Open or Short in Master Cylinder Pressure Sensor (C1421,C1423,C1424,C142A,C1449)
DESCRIPTION
DTC No.
Detection Item
DTC Detection Condition
Trouble Area
C1421
Open or Short in Master Cylinder Pressure Sensor
...
Other materials:
Inverter Relay
On-vehicle Inspection
ON-VEHICLE INSPECTION
PROCEDURE
1. INSPECT INVERTER RELAY
(a) Check the resistance.
(1) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
Tester Connection
Condition
...
Differential Oil
Adjustment
ADJUSTMENT
PROCEDURE
1. INSPECT DIFFERENTIAL OIL
(a) Stop the vehicle on a level place.
(b) Remove the differential filler plug and gasket.
(c) Check that the oil level is within 5 mm (0 to 0.20 in.) of the bottom of
the filler plug opening.
NOTICE:
Excessively large ...
Parts Location
PARTS LOCATION
ILLUSTRATION
ILLUSTRATION
ILLUSTRATION
ILLUSTRATION
ILLUSTRATION
...
