Toyota CH-R Service Manual: ECU Power Source Circuit
DESCRIPTION
This circuit supplies power to the millimeter wave radar sensor assembly when the ignition switch is ON.
WIRING DIAGRAM
CAUTION / NOTICE / HINT
NOTICE:
Inspect the fuses for circuits related to this system before performing the following inspection procedure.
PROCEDURE
|
1. |
CHECK MILLIMETER WAVE RADAR SENSOR ASSEMBLY (IGB VOLTAGE) |
|
(a) Disconnect the millimeter wave radar sensor assembly connector. |
|
(b) Turn the ignition switch to ON.
(c) Measure the voltage according to the value(s) in the table below.
Standard Voltage:
|
Tester Connection |
Switch Condition |
Specified Condition |
|---|---|---|
|
A2-8 (IGB) - Body ground |
Ignition switch ON |
11 to 14 V |
(d) Turn the ignition switch off.
(e) Reconnect the millimeter wave radar sensor assembly connector.
| NG | .gif) |
REPAIR OR REPLACE HARNESS OR CONNECTOR (POWER SOURCE CIRCUIT) |
|
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|
2. |
CHECK HARNESS AND CONNECTOR (MILLIMETER WAVE RADAR SENSOR ASSEMBLY - BODY GROUND) |
|
(a) Disconnect the millimeter wave radar sensor assembly connector. |
|
(b) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
|
Tester Connection |
Condition |
Specified Condition |
|---|---|---|
|
A2-1 (SGND) - Body ground |
Always |
Below 1 Ω |
(c) Connect the millimeter wave radar sensor assembly connector.
| OK | |
PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE |
| NG | |
REPAIR OR REPLACE HARNESS OR CONNECTOR |
Front Radar Sensor (C1A10)
DESCRIPTION
C1A10 is output when there is an internal malfunction in the millimeter wave
radar sensor assembly.
DTC No.
Detection Item
DTC Detection Condition
...
Pre-collision System Warning Buzzer
Components
COMPONENTS
ILLUSTRATION
*1
PRE-COLLISION CITY BUZZER
-
-
Removal
REMOVAL
PROCEDURE
1. REMOVE FUSE BOX OPENING COVER
Click ...
Other materials:
Toyota CH-R Service Manual > Vehicle Stability Control System: Steering Angle Sensor Internal Circuit (C1433)
DESCRIPTION
This DTC is stored when the skid control ECU (brake actuator assembly) receives
an internal malfunction signal from the steering angle sensor.
DTC No.
Detection Item
DTC Detection Condition
Trouble Area
C1433
Ste ...
Toyota CH-R Service Manual > Lin Communication System: P/W Master Switch Communication Stop (B1206)
DESCRIPTION
This DTC is stored when LIN communication between the multiplex network master
switch assembly and main body ECU (multiplex network body ECU) stops for 10 seconds
or more.
DTC No.
Detection Item
DTC Detection Condition
Trouble Area
...
Toyota CH-R Owners Manual
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Toyota CH-R Service Manual
- Introduction
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