On-Vehicle Inspection

WARNING: This page is about a different car, the 2008 Lexus IS F. However, it is still accessible from the selected car via links, so may be relevant.

INSPECT RAIN SENSOR

Disconnect the R7 rain sensor connector.

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

Standard Resistance

TESTER CONNECTION TESTER CONNECTION CHART

Tester Connection	Condition	Specified Condition
R7-3 (ES) - Body ground	Always	Below 1 Ω

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

Fig 1: Identifying R7 Rain Sensor Connector

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

Standard Voltage

TESTER CONNECTION TESTER CONNECTION CHART

Tester Connection	Condition	Specified Condition
R7-1 (SIG) - Body ground	Engine switch on (IG)	11 to 14 V

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