Toyota Tacoma 2015-2018 Service Manual: Motor Circuit Malfunction (C1428)
DESCRIPTION
|
DTC No. |
Detection Item |
DTC Detection Condition |
Trouble Area |
|---|---|---|---|
|
C1428 |
Motor Circuit Malfunction |
With the motor relay and motor fail-safe relay OFF, open or short in motor circuit continues for 2 seconds or more. |
Brake actuator assembly (Motor circuit) |
WIRING DIAGRAM
Refer to DTCs C142B, C146C and C146D (See page
.gif)
).
CAUTION / NOTICE / HINT
NOTICE:
When replacing the skid control ECU (brake actuator assembly), perform zero point
calibration and store system information (See page
).
PROCEDURE
|
1. |
CHECK HARNESS AND CONNECTOR (GND2 TERMINAL) |
(a) Turn the ignition switch off.
(b) Make sure that there is no looseness at the locking part and the connecting part of the connectors.
(c) Disconnect the S1 skid control ECU (brake actuator assembly) connector.
|
(d) Measure the resistance according to the value(s) in the table below. Standard Resistance:
|
|
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| OK | .gif) |
REPLACE BRAKE ACTUATOR ASSEMBLY |
| NG | |
REPAIR OR REPLACE HARNESS OR CONNECTOR (GND2 CIRCUIT) |
Motor Power Supply Voltage Circuit (C142B-C146D)
DESCRIPTION
The motor relay and motor fail-safe relay are built into the brake actuator assembly.
During ABS, TRAC, VSC, or brake assist operation, the skid control ECU (brake
actuator assembly) t ...
Steering Angle Sensor Power Source Voltage Malfunction (C1432)
DESCRIPTION
The skid control ECU (brake actuator assembly) outputs this DTC when it receives
a sensor power source malfunction signal from the steering angle sensor.
DTC No.
...
Other materials:
Seatback table
Front passenger’s seatback can be used as a temporary table only when the
vehicle is stopped.
Fold down the front passenger’s seat to use the seatback table.
CAUTION
■Caution while driving
Observe the following precautions to avoid death or serious injury.
●Do not set up the ...
TS and CG Terminal Circuit
DESCRIPTION
In Test Mode (signal check), a malfunction in the speed sensor that cannot be
detected when the vehicle is stopped can be detected while driving.
Sensor check mode can be entered by connecting terminals TS and CG of the DLC3
and turning the ignition switch from off to ON.
WIRING D ...
Data List / Active Test
DATA LIST / ACTIVE TEST
1. DATA LIST
Using the Techstream to read the Data List allows the values or states of switches,
sensors, actuators and other items to be read without removing any parts. This non-intrusive
inspection can be very useful because intermittent conditions or signals may be ...