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:
Standard Resistance:
If the result is not as specified, there may be a malfunction on the wire harness side. |
|
(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 | 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
REMOVAL CAUTION / NOTICE / HINT COMPONENTS (REMOVAL)
Procedure Part Name Code
1 INSTRUMENT PANEL SAFETY PAD ASSEMBLY
- -
- -
2 AUTOMATI
Installation
INSTALLATION CAUTION / NOTICE / HINT COMPONENTS (INSTALLATION)
Procedure Part Name Code
1 AUTOMATIC LIGHT CONTROL SENSOR
89120A -
- -
2
SEE MORE:
Precaution
PRECAUTION
TROUBLESHOOTING PRECAUTION
NOTICE:
Since the brake lines are critical safety related parts, be sure to
disassemble and inspect the components if a brake fluid leak is found. If
any abnormalities are found, replace the component with a new one.
When removing brake componen
Electronic Circuit Inspection Procedure
ELECTRONIC CIRCUIT INSPECTION PROCEDURE
BASIC INSPECTION
(a) WHEN MEASURING RESISTANCE OF ELECTRONIC PARTS
(1) Unless otherwise stated, all resistance measurements are standard values
measured at an ambient temperature of 20°C (68°F). Resistance measurements may be
inaccurate if measured at
