Lexus NX: On-vehicle Inspection

Lexus NX Service Manual / Vehicle Exterior / Wiper / Washer / Rain Sensor / On-vehicle Inspection

ON-VEHICLE INSPECTION

PROCEDURE

1. INSPECT RAIN SENSOR

(a) Remove the rain sensor cover.

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(b) Disconnect the rain sensor connector.

*a	Front view of wire harness connector (to Rain Sensor)

Standard Voltage:

Tester Connection	Condition	Specified Condition
4 (SIG) - Body ground	Power switch on (IG)	11 to 14 V

(d) Measure the resistance according to the value(s) in the table below.

Standard Resistance:

Tester Connection	Condition	Specified Condition
2 (ES) - Body ground	Always	Below 1 Ω

If the result is not as specified, repair or replace the harness or connector.

(e) Reconnect the rain sensor connector.

(f) Connect an oscilloscope to the rain sensor connector.

(g) Check for pulses.

Tester Connection	Condition	Specified Condition
1 (MPX) - 2 (ES)	Power switch on (IG)	Pulse generation

If the result is not as specified, replace the rain sensor.

*a	Component with harness connected (Rain Sensor)

(h) Install the rain sensor cover.

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Lexus NX: On-vehicle Inspection

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Removal

Inspection

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