DESCRIPTION
The motor relay (semiconductor relay) is built into the hydraulic brake booster and drives the pump motor based on a signal from the skid control ECU (master cylinder solenoid).
DTC No. |
DTC Detecting Condition |
Trouble Areas |
---|---|---|
C1257 |
Open in pump motor input circuit |
Hydraulic brake booster pump motor circuit |
PROCEDURE
1. |
CHECK HYDRAULIC BRAKE BOOSTER PUMP MOTOR OPERATION |
(a) Turn the ignition switch to OFF.
(b) Disconnect the actuator connector (S1).
(c) Depress the brake pedal more than 20 times.
(d) Turn the ignition switch to the ON position.
(e) Check the hydraulic brake booster pump motor operation.
OK:
Hydraulic brake booster pump operates.
NG |
REPLACE MASTER CYLINDER SOLENOID |
|
2. |
RECONFIRM DTC |
(a) Turn the ignition switch to OFF.
(b) Reconnect the actuator connector (S1).
(c) Turn the ignition switch to the ON position.
(d) Clear the DTCs (See page ).
(e) Check if the same DTCs are recorded.
Result |
Proceed to |
---|---|
DTC output |
A |
DTC not output |
B |
A |
REPLACE MASTER CYLINDER SOLENOID |
B |
END |
Skid Control Buzzer Circuit (C1AA7)
DESCRIPTION
The forward recognition camera operates the pre-collision warning by sending
a buzzer request signal to the skid control buzzer.
If the forward recognition camera detects a malfunction in the skid control buzzer
circuit, it will output DTC C1AA7.
DTC No.
Dete ...
Calibration
CALIBRATION
1. DESCRIPTION
(a) After replacing the VSC relevant components or performing "Front wheel alignment
adjustment", clearing and reading the sensor calibration data are necessary.
(b) Follow the chart to perform calibration.
Replacing Parts
Necessary Op ...
Removal
REMOVAL
CAUTION / NOTICE / HINT
NOTICE:
If one of the camshaft timing gear bolts is already removed, do not remove any
other camshaft timing gear bolts.
PROCEDURE
1. REMOVE NO. 2 ENGINE UNDER COVER SUB-ASSEMBLY (w/ Off Road Package)
2. REMOVE NO. 1 ENGINE UNDER COVER SUB-ASSEMBLY
3. REMOVE ...