DESCRIPTION
The brake fluid level warning switch sends the appropriate signal to the skid control ECU (master cylinder solenoid) when the brake fluid level drops.
DTC Code |
DTC Detection Condition |
Trouble Area |
---|---|---|
C1453 |
With the ECU terminal IG1 voltage at 10 to 14 V, an open in the brake fluid level warning switch circuit continues for 2 seconds or more. |
|
C1454 |
The fluid level of the reservoir is LOW for 40 seconds after the ignition switch is turned to ON, or for 7 seconds during pump motor operation. |
WIRING DIAGRAM
CAUTION / NOTICE / HINT
NOTICE:
When replacing the skid control ECU (master cylinder solenoid), perform calibration (See page ).
PROCEDURE
1. |
CHECK BRAKE FLUID LEVEL |
(a) Turn the ignition switch off.
(b) Depress the brake pedal 40 times or more (until the pedal reaction feels light and pedal stroke becomes longer).
(c) Check the amount of fluid in the brake reservoir.
HINT:
When the ignition switch is turned to ON, brake fluid is sent to the accumulator and the fluid level decreases by approximately 5 mm (0.197 in.) from the level when the ignition switch is off (normal).
OK:
Brake fluid level is normal.
NG |
CHECK AND REPAIR BRAKE FLUID LEAKAGE |
|
2. |
INSPECT BRAKE FLUID LEVEL WARNING SWITCH |
(a) Disconnect the B2 brake fluid level warning switch (brake master cylinder reservoir sub-assembly) connector.
(b) Measure the resistance according to the value(s) in the table below. HINT: A float is placed inside the reservoir. Its position can be changed by increasing/decreasing the level of brake fluid. Standard Resistance:
HINT: If there is no problem after finishing the above check, adjust the brake fluid level to the MAX level. |
|
NG |
REPLACE BRAKE MASTER CYLINDER RESERVOIR SUB-ASSEMBLY |
|
3. |
CHECK HARNESS AND CONNECTOR (SKID CONTROL ECU - BRAKE FLUID LEVEL WARNING SWITCH) |
(a) Disconnect the S1 skid control ECU (master cylinder solenoid) connector.
(b) Disconnect the B2 brake fluid level warning switch (brake master cylinder reservoir sub-assembly) connector.
(c) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
Tester Connection |
Condition |
Specified Condition |
---|---|---|
S1-41 (LBL) - B2-2 |
Always |
Below 1 Ω |
S1-41 (LBL) - Body ground |
Always |
10 kΩ or higher |
S1-41 (GND) - Body ground |
Always |
Below 1 Ω |
NG |
REPAIR OR REPLACE HARNESS OR CONNECTOR |
|
4. |
RECONFIRM DTC |
(a) Clear the DTCs (See page ).
(b) Turn the ignition switch off.
(c) Start the engine and idle it for approximately 40 seconds.
(d) Check if the same DTCs are output (See page ).
Result
Result |
Proceed to |
---|---|
DTC is output |
A |
DTC is not output |
B |
A |
REPLACE MASTER CYLINDER SOLENOID |
B |
USE SIMULATION METHOD TO CHECK |
Output Shaft
Components
COMPONENTS
ILLUSTRATION
Disassembly
DISASSEMBLY
PROCEDURE
1. REMOVE FRONT OUTPUT SHAFT BEARING
(a) Temporarily install the manual transmission output shaft rear set
nut to the output shaft.
Text in Illustration
*1
Manual ...
Air Inlet Damper Control Servo Motor Circuit (B1442/42)
DESCRIPTION
This No. 1 air conditioning servo assembly (fresh/recirculation damper) is controlled
by the air conditioning amplifier assembly and moves the air inlet damper to the
desired position.
DTC No.
DTC Detection Condition
Trouble Area
B1 ...
Main Body ECU Vehicle Information Reading/Writing Process Malfunction (B15F6)
DESCRIPTION
This DTC is stored when items controlled by the main body ECU cannot be customized
via the navigation system vehicle customization screen.
HINT:
The main body ECU controls the items for the following systems that are customizable
via the navigation receiver assembly screen:
...