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 | ![]() |
REPAIR OR REPLACE HARNESS OR CONNECTOR (POWER SOURCE CIRCUIT) |
|
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 |
Toyota CH-R Service Manual > Immobiliser System(w/ Smart Key System): Dtc Check / Clear
DTC CHECK / CLEAR
NOTICE:
When using the Techstream with the engine switch off, connect the Techstream
to the DLC3 and turn a courtesy light switch on and off at intervals of 1.5 seconds
or less until communication between the Techstream and the vehicle begins. Then
select the vehicle type u ...
Toyota CH-R Service Manual > Navigation System: Telematics Transceiver Disconnected (B15DB)
DESCRIPTION
If the radio and display receiver assembly cannot detect the DCM (telematics
transceiver) for a certain period of time (90 seconds) after the engine switch is
turned on (ACC) and the radio and display receiver assembly confirms that the information
is missing by checking past DCM ...