Toyota Corolla Cross: On-vehicle Inspection
ON-VEHICLE INSPECTION
PROCEDURE
1. INSPECT AUTOMATIC LIGHT CONTROL SENSOR
(a) Disconnect the h1 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 | |
h1-1 (CLTB) - h1-2 (CLTE) |
Ignition switch off |
Below 1 V | | h1-1 (CLTB) - h1-2 (CLTE) |
Ignition switch on (IG) | 11 to 14 V |
Standard Resistance: |
Tester Connection | Condition |
Specified Condition | |
h1-2 (CLTE) - Body ground |
Always | Below 1 Ω |
If the result is not as specified, there may be a malfunction on the wire harness side. |
 |
|
*a | Front view of wire harness connector
(to Automatic Light Control Sensor) | | |
(c) Connect the h1 automatic light control sensor connector.
(d) Connect an oscilloscope to terminals h1-2 (CLTE) and h1-4 (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 |
|
h1-2 (CLTE) - h1-4 (CLTS) |
Ignition switch on (IG) |
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.
READ NEXT:
REMOVAL CAUTION / NOTICE / HINT COMPONENTS (REMOVAL)
Procedure Part Name Code
1 INSTRUMENT PANEL SAFETY PAD ASSEMBLY
55400 -
- -
2 AUTOMATIC LIG
INSTALLATION CAUTION / NOTICE / HINT COMPONENTS (INSTALLATION)
Procedure Part Name Code
1 AUTOMATIC LIGHT CONTROL SENSOR
89120A -
- -
2 INSTRUME
SEE MORE:
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DTC No. Detection Item
DTC Detection Condition
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Warning Indicate Note
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BLEEDING
CAUTION / NOTICE / HINT
The necessary procedures (adjustment, calibration, initialization,
or registration) that must be performed after parts are removed and installed, or
replaced during brake fluid bleeding are shown below.
HINT:
When the cable is disconnected/reconnected to the
