On-Vehicle Inspection
WARNING: This page is about a different car, the 2009 Lexus IS 350 and 2009 Lexus IS 250. However, it is still accessible from the selected car via links, so may be relevant.
- INSPECT HEADLIGHT RELAY (Marking: HEAD LP)
- Remove the headlight relay from the engine room R/B No. 1.
- Measure the resistance according to the value(s) in the table below.
Standard resistance
Tester Connection Specified Condition 3 - 5 10 kΩ or higher 3 - 5 Below 1 Ω (when battery voltage is applied to terminals 1 and 2) If the result is not as specified, replace the relay.