FAIL-SAFE CHART
The brake actuator assembly turns off the solenoids and the ECM stops its VSC control according to signals from the skid control ECU. The vehicle will operate in a manner similar to a vehicle that is not equipped with ABS, TRAC and VSC systems.
ABS control will be prohibited, but EBD control will continue to the extent that EBD control is possible. If EBD control is impossible, the brake warning light will come on to warn the driver (See page ).
If a system component malfunctions during VSC control, the system will gradually stop performing control so as not to trigger a sudden change in vehicle operation.
If it is impossible for control to continue, the warning light comes on to inform the driver of system control termination (See page ).
Malfunction Area |
Control Method |
---|---|
ABS system |
ABS, BA, TRAC and VSC control prohibited |
BA system |
ABS, BA, TRAC and VSC control prohibited |
EBD system |
ABS, EBD, BA, TRAC and VSC control prohibited |
Malfunction Area |
Control Method |
---|---|
Engine control system (TRAC system) |
Before control: Disables control During control: Uses only the brakes to perform control |
Brake control system (VSC system) |
Before control: Disables control During control: Uses only the engine to perform control |
Brake control system (TRAC system) |
Before control: Disables control During control: Disables control (by gradually ending control) |
Removal
REMOVAL
CAUTION / NOTICE / HINT
NOTICE:
Release the vacuum from booster by depressing the brake pedal several times.
Then remove the brake master cylinder from brake booster.
PROCEDURE
1. PRECAUTION
NOTICE:
After turning the ignition switch off, waiting time may be required before disconnect ...
Data List / Active Test
DATA LIST / ACTIVE TEST
1. DATA LIST
NOTICE:
In the table below, the values listed under "Normal Condition" are reference
values. Do not depend solely on these reference values when deciding whether a part
is faulty or not.
HINT:
Using the Techstream to read the Data List allows t ...
Initialization not Completed (C2177/77)
DESCRIPTION
Initialization is necessary if one of the following occurs:
The tire pressure warning ECU and receiver is replaced.
A tire pressure warning valve and transmitter is replaced.
Tires with different standard tire pressures are installed.
The tires are rotated.
A new ...