| Last Modified: 11-20-2023 | 6.11:8.1.0 | Doc ID: RM1000000012TY3 |
| Model Year Start: 2018 | Model: Camry | Prod Date Range: [03/2017 - ] |
| Title: LIGHTING (EXT): AUTOMATIC LIGHT CONTROL SENSOR: ON-VEHICLE INSPECTION; 2018 - 2024 MY Camry [03/2017 - ] | ||
ON-VEHICLE INSPECTION
PROCEDURE
1. INSPECT AUTOMATIC LIGHT CONTROL SENSOR
|
*a |
Front view of wire harness connector (to Automatic Light Control Sensor) |
(a) Disconnect the M1 automatic light control sensor connector.
(b) Measure the voltage and resistance according to the value(s) in the table below.
Standard Voltage:
|
Tester Connection |
Condition |
Specified Condition |
|---|---|---|
|
M1-1 (CLTB) - M1-2 (CLTE) |
Ignition switch off |
Below 1 V |
|
Ignition switch ON |
11 to 14 V |
Standard Resistance:
|
Tester Connection |
Condition |
Specified Condition |
|---|---|---|
|
M1-2 (CLTE) - Body ground |
Always |
Below 1 Ω |
If the result is not as specified, there may be a malfunction on the wire harness side.
(c) Connect the M1 automatic light control sensor connector.
(d) Connect an oscilloscope to terminals M1-2 (CLTE) and M1-4 (CLTS) of the automatic light control sensor connector and check the waveform.
|
*a |
Component with harness connected (Automatic Light Control Sensor) |
*b |
Waveform |
OK:
|
Tester Connection |
Condition |
Tool Setting |
Specified Condition |
|---|---|---|---|
|
M1-2 (CLTE) - M1-4 (CLTS) |
Ignition switch ON |
2 V/DIV., 10 ms./DIV. |
Pulse generation (See waveform) |
HINT:
The communication waveform changes according to the surrounding brightness.
If the result is not as specified, the automatic light control sensor may be malfunctioning.
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