Component Parts Location
1 ABS actuator and electric unit (control unit) 2 IPDM E/R 3 Brake fluid level switch (view with IPDM E/R removed) 4 Front wheel sensor 5 Rear wheel sensor 6 VDC OFF switch 7 Steering angle sensor (view with steering wheel and spiral cable removed) 8 Stop lamp switch 9 Parking brake switch (view with console removed) 10 Combination meter (type A) 11 Combination meter (type B)
Component Description
Component | Reference/Function |
ABS actuator and electric unit (control unit) | BRC "ABS Actuator and Electric Unit (Control Unit)" |
Wheel sensor | BRC "Wheel Sensor and Sensor Rotor" |
Stop lamp switch | BRC "Stop Lamp Switch" |
Steering angle sensor | BRC "Steering Angle Sensor" |
VDC OFF switch | BRC "VDC OFF Switch" |
Brake fluid level switch | BRC "Brake Fluid Level Switch" |
Parking brake switch | BRC "Parking Brake Switch" |
ABS warning lamp | BRC "VDC/TCS/ABS : System Description" |
Brake warning lamp | |
VDC OFF indicator lamp | |
SLIP indicator lamp | |
ECM | Transmits the following signals to ABS actuator and electric unit
(control unit) via CAN
communication. - Accelerator pedal position signal - Engine speed signal - Target throttle position signal |
TCM | Transmits the current gear position signal to ABS actuator and electric unit (control unit) via CAN communication. |
Electric unit (control unit) is integrated with actuator and comprehensively controls VDC function, TCS function, ABS function and EBD function.
ELECTRIC UNIT (CONTROL UNIT)
ACTUATOR
The following components are integrated with ABS actuator.
Pump
Returns the brake fluid reserved in reservoir to master cylinder by reducing pressure.
Motor
Activates the pump according to signals from ABS actuator and electric unit (control unit).
Motor Relay
Operates the motor ON/OFF according to signals from ABS actuator and electric unit (control unit).
Actuator Relay (Main Relay)
Operates each valve ON/OFF according to signals from ABS actuator and electric unit (control unit).
ABS IN Valve
Switches the fluid pressure line to increase or hold according to signals from control unit.
ABS OUT Valve
Switches the fluid pressure line to increase, hold or decrease according to signals from control unit.
Cut Valve 1, Cut Valve 2
Shuts off the ordinary brake line from master cylinder, when VDC function and TCS function are activated.
Suction Valve 1, Suction Valve 2
Supplies the brake fluid from master cylinder to the pump, when VDC function and TCS function are activated.
Return Check Valve
Returns the brake fluid from brake caliper and wheel cylinder to master cylinder by bypassing orifice of each valve when brake is released.
Reservoir
Temporarily reserves the brake fluid drained from brake caliper, so that pressure efficiently decreases when decreasing pressure of brake caliper and wheel cylinder.
Yaw rate/side/decel G sensor
Calculates the following information that affects the vehicle, and transmits a signal to ABS actuator and electric unit (control unit) via communication lines.
Pressure Sensor
Detects the brake fluid pressure and transmits signal to ABS actuator and electric unit (control unit).
NOTE:
Stop Lamp Switch
Detects the operation status of brake pedal and transmits converted electric signal to ABS actuator and electric unit (control unit).
Steering Angle Sensor
Detects the following information and transmits steering angle signal to ABS actuator and electric unit (control unit) via CAN communication.
VDC OFF Switch
VDC OFF indicator lamp indicates the operation status of function. (ON: Non-operational status, OFF: Standby status)
Brake Fluid Level Switch
Detects the brake fluid level in reservoir tank and transmits converted electric signal from combination meter to ABS actuator and electric unit (control unit) via CAN communication.
Parking Brake Switch
Detects the operation status of parking brake switch and transmits converted electric signal from combination meter to ABS actuator and electric unit (control unit) via CAN communication.
SYSTEM
VDC/TCS/ABS : System Diagram ...
Rear window defroster switch
To defrost the rear window glass, start the engine
and push the rear window defroster switch on.
The rear window defroster indicator light on the
switch comes on. Push the switch again to turn
the defroster off.
The rear window defroster automatically turns off
after approximately 15 m ...
Door does not lock/unlock with
driver side door lock knob or door
key cylinder
Diagnosis Procedure
1.CHECK POWER DOOR LOCK OPERATION
Check power door lock operation.
Does door lock/unlock with door lock and unlock switch?
YES >> GO TO 2.
NO >> Refer to DLK "ALL DOOR : Diagnosis Procedure".
2.CHECK UNLOCK SENSOR
Check unlock sensor.
Refer to DLK ...