DESCRIPTION
This circuit is from the skid control ECU (brake actuator assembly) to the radio and display receiver assembly.
WIRING DIAGRAM
PROCEDURE
|
1. |
CHECK ELECTRIC PARKING BRAKE SYSTEM |
(a) Check the operation of the electric parking brake.
Click here
| NG | |
GO TO ELECTRIC PARKING BRAKE SYSTEM |
|
|
2. |
CHECK HARNESS AND CONNECTOR (SKID CONTROL ECU (BRAKE ACTUATOR ASSEMBLY) - RADIO AND DISPLAY RECEIVER ASSEMBLY) |
(a) Disconnect the F131 radio and display receiver assembly connector.
(b) Disconnect the A42 skid control ECU (Brake Actuator Assembly) connector.
(c) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
|
Tester Connection |
Condition |
Specified Condition |
|---|---|---|
|
F131-20 (PKB) - A42-33 (PKB) |
Always |
Below 1 Ω |
|
F131-20 (PKB) - Body ground |
Always |
10 kΩ or higher |
| OK | |
PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE |
| NG | |
REPAIR OR REPLACE HARNESS OR CONNECTOR |
Illumination Circuit
Speaker CircuitToyota CH-R Owners Manual > Instrument cluster: Warning lights and indicators
The warning lights and indicators on the instrument cluster and center
panel inform the driver of the status of the vehicle's various systems.
For the purpose of explanation, the following illustration displays
all warning lights and indicators illuminated.
The units used on the mete ...
Toyota CH-R Service Manual > Smart Key System(for Entry Function): Entry Interior Alarm does not Sound
DESCRIPTION
The smart key system (for Entry Function) uses the buzzer in the combination
meter assembly (meter ECU) to perform various vehicle interior warnings. When the
conditions of each warning are met, the certification ECU (smart key ECU assembly)
sends a buzzer activation request signa ...