DESCRIPTION
DTC No. |
Detection Item |
DTC Detection Condition |
Trouble Area |
---|---|---|---|
C1427 |
Motor Malfunction |
Actuator pump motor does not operate properly. |
|
WIRING DIAGRAM
Refer to DTCs C142B, C146C and C146D (See page
).
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. |
PERFORM ACTIVE TEST USING TECHSTREAM (MOTOR RELAY) |
(a) Connect the Techstream to the DLC3.
(b) Turn the ignition switch to ON.
(c) Turn the Techstream on.
(d) Enter the following menus: Chassis / ABS/VSC/TRAC / Active Test.
(e) According to the display on the Techstream, perform the Active Test.
ABS/VSC/TRAC
Tester Display |
Measurement Item |
Control Range |
Diagnostic Note |
---|---|---|---|
Motor Relay |
Motor relay |
Relay ON / OFF |
Operating sound of motor can be heard. Vehicle condition: Vehicle stopped |
(f) Check the operating sound of the motor relay when operating it with the Techstream.
Result
Result |
Proceed to |
---|---|
The operating sound is not heard |
A |
The operating sound is heard |
B |
B | ![]() |
GO TO STEP 3 |
|
2. |
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:
|
|
NG | ![]() |
REPAIR OR REPLACE HARNESS OR CONNECTOR (GND2 CIRCUIT) |
|
3. |
RECONFIRM DTC |
HINT:
This code is detected when a problem is identified in the brake actuator assembly. The motor relay is in the brake actuator assembly.
Therefore, motor relay unit inspection cannot be performed. Be sure to check if the DTC is output before replacing the brake actuator assembly.
(a) Reconnect the S1 skid control ECU (brake actuator assembly) connector.
(b) Clear the DTCs (See page
).
(c) Turn the ignition switch off.
(d) Start the engine.
(e) Drive the vehicle at a speed of 20 km/h (12 mph) or more for 30 seconds or more.
(f) Check if the same DTC is recorded (See page
).
HINT:
Result |
Proceed to |
---|---|
DTC C1427 is not output |
A |
DTC C1427 is output |
B |
A | ![]() |
USE SIMULATION METHOD TO CHECK |
B | ![]() |
REPLACE BRAKE ACTUATOR ASSEMBLY |
Control Module Communication Bus OFF (U0073,U0100,U0114,U0123,U0124,U0126)
DESCRIPTION
The skid control ECU (master cylinder solenoid) receives the signals from the
ECM, steering angle sensor (spiral cable with sensor sub-assembly), 4 wheel drive
control ECU*, and yaw rate and acceleration sensor (airbag sensor assembly) via
the CAN communication system.
*: ...
Ignition Hold Monitor Malfunction (B2271)
DESCRIPTION
This DTC is stored when a malfunction in the IG circuit or IG hold circuit in
the certification ECU (smart key ECU assembly) is detected.
HINT:
When the cable is disconnected and reconnected to the negative (-) battery terminal,
the power source mode returns to the state it was in ...
Installation
INSTALLATION
PROCEDURE
1. INSTALL DIFFERENTIAL SIDE GEAR SHAFT OIL SEAL
(a) Using SST and a hammer, install a new oil seal.
SST: 09554-30011
(b) Coat the oil seal lip with MP grease.
2. INSTALL FRONT DRIVE SHAFT ASSEMBLY LH
Click here
3. INSTALL FRONT DRIVE SHAFT ASSEMBLY RH
HINT:
Use ...