DESCRIPTION
Depending on the malfunction, the skid control ECU (brake actuator assembly) prohibits operation of the vehicle stability control system to protect components and prevent incorrect operation when DTCs are stored.
If the switching solenoid is disabled due to prohibition of the vehicle stability control system, the response of the brake pedal changes and braking performance is reduced.
CAUTION / NOTICE / HINT
NOTICE:
When replacing the skid control ECU (brake actuator assembly), perform system variant learning.
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PROCEDURE
1. |
BRAKE PROBLEM CHECK |
(a) Check the conditions at the time the problem occurred.
(1) Whether a warning light illuminated or the buzzer sounded.
(2) Road surface condition when the problem occurred and just before the problem occurred.
(3) When the problem occurred and how many times the brake pedal was depressed before the problem occurred.
(4) Frequency of the abnormal brake pedal response.
|
2. |
CHECK DTC AND FREEZE FRAME DATA |
(a) Using the Techstream, check DTCs and Freeze Frame Data.
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Chassis > ABS/VSC/TRAC/EPB > Trouble Codes
Result |
Proceed to |
---|---|
DTCs are not output. |
A |
DTCs are output. |
B |
HINT:
B |
REPAIR CIRCUITS INDICATED BY OUTPUT DTCS |
|
3. |
CHECK BRAKE PEDAL |
(a) While depressing the brake pedal by hand, check the installation condition of the brake pedal stroke sensor assembly and brake pedal, and check for mechanical malfunctions.
(b) Check and adjust the brake pedal height.
Click here
|
4. |
INSPECT BRAKE ACTUATOR ASSEMBLY |
(a) Check the brake actuator assembly.
Click here
OK:
The brake actuator assembly is normal.
OK |
USE SIMULATION METHOD TO CHECK |
NG |
REPLACE BRAKE ACTUATOR ASSEMBLY |
Toyota CH-R Service Manual > Audio / Video: Radio Receiver(for Radio Receiver Type)
Components
COMPONENTS
ILLUSTRATION
*1
INSTRUMENT CLUSTER FINISH CENTER PANEL SUB-ASSEMBLY
*2
RADIO RECEIVER ASSEMBLY WITH BRACKET
ILLUSTRATION
*1
NO. 1 RADIO BRACKET
*2
NO. 2 RADIO BRACKET
...
Toyota CH-R Service Manual > Meter / Gauge System: Terminals Of Ecu
TERMINALS OF ECU
COMBINATION METER ASSEMBLY
(a) Disconnect the combination meter assembly connectors.
(b) Measure the voltage on the wire harness side connector according to the value(s)
in the table below.
Terminal No.
Wiring Color
Terminal Description
...