Lexus NX: Inspection
INSPECTION
PROCEDURE
1. INSPECT AUTOMATIC LIGHT CONTROL SENSOR
| (a) Disconnect the automatic light control sensor connector. | | | *a | Front view of wire harness connector (to Automatic Light Control Sensor) | | |
(b) Measure the voltage and resistance according to the value(s) in the table below.
Standard Voltage:
| Tester Connection | Condition | Specified Condition |
| J6-1 (CLTB) - J6-2 (CLTE) | Power switch off | Below 1 V |
| Power switch on (IG) | 11 to 14 V |
Standard Resistance:
| Tester Connection | Condition | Specified Condition |
| J6-2 (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) Reconnect the automatic light control sensor connector. | | | *a | Component with harness connected (Automatic Light Control Sensor) | | |
(d) Connect an oscilloscope to the automatic light control sensor connector.
| (e) Check the waveform. OK: | Tester Connection | Tool Setting | Condition | Specified Condition | | J6-4 (CLTS) - J6-2 (CLTE) | 2 V/DIV., 10 ms./DIV. | Power switch on (IG), light control switch in AUTO position | Correct waveform is as shown | 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:
INSTALLATION PROCEDURE 1. INSTALL AUTOMATIC LIGHT CONTROL SENSOR (a) Attach the 2 claws to install the automatic light control sensor. 2. INSTALL NO. 1 SPEAKER OPENING COVER ASSEMBLY Click here 3.
COMPONENTS ILLUSTRATION *1 CLEARANCE LIGHT ASSEMBLY LH *2 FRONT BUMPER ASSEMBLY *3 FRONT TURN SIGNAL LIGHT BULB - -
SEE MORE:
DESCRIPTION The front airbag sensor LH consists of a diagnostic circuit and frontal deceleration sensor, etc. If the airbag ECU assembly receives signals from the frontal deceleration sensor, it determines whether the SRS should be activated. DTC B1615 is stored when a malfunction is detected in the
REMOVAL CAUTION / NOTICE / HINT HINT:
Use the same procedure for the RH and LH sides.
The following procedure is for the LH side.
NOTICE:
While the auxiliary battery is connected, even if the power switch is off, the brake control system activates when the brake pedal is depressed or the
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