INSPECTION
PROCEDURE
1. INSPECT AUTOMATIC LIGHT CONTROL SENSOR
(a) Check the wire harness.
(1) Disconnect the automatic light control sensor (G1).
(2) Measure the voltage according to the value(s) in the table below. Standard Voltage:
If the specified condition is not met, replace the vehicle wire harness. |
|
(b) Check the resistance.
(1) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
Tester Connection |
Switch Condition |
Specified Condition |
---|---|---|
G1-2(CLTE) - Body ground |
Always |
Below 1 Ω |
If the specified condition is not met, replace the vehicle wire harness.
(c) Check the automatic light control sensor.
(1) Connect the automatic light control sensor (G1).
(2) Check the waveform Use the oscilloscope and check the waveform in the terminal spaces. NOTICE: With the connector connected as is, check from the rear side of the connector. Standard:
If the specified condition is not met, replace the solar sensor. |
|
(3) Waveform
The communication waveform changes according to the surrounding brightness. |
|
Toyota CH-R Service Manual > Can Communication System: Check Bus 3 Lines for Short Circuit
DESCRIPTION
There may be a short circuit between the CAN main bus lines and/or CAN branch
lines when the resistance between terminals 6 (CA3H) and 21 (CA3L) of the central
gateway ECU (network gateway ECU) is below 54 Ω.
Symptom
Trouble Area
Resistance b ...
Toyota CH-R Service Manual > Lighting System: Data List / Active Test
DATA LIST / ACTIVE TEST
DATA LIST
NOTICE:
In the table below, the values listed under "Normal Condition" are reference
values. Do not depend solely on these reference values when deciding whether a part
is faulty or not.
HINT:
Using the Techstream to read the Data List allows the ...