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) |
|
.gif)
|
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:
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Toyota CH-R Owners Manual
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Toyota CH-R Service Manual
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KIA Niro EV / Hybrid (SG2) - (2021-2023) - Owner's manual
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