On-Vehicle Inspection
WARNING: This page is about a different car, the 2006 Lexus IS 350. However, it is still accessible from the selected car via links, so may be relevant.
- INSPECT STOP LIGHT CONTROL RELAY
- Remove the stop light control relay.
- Measure the resistance according to the value(s) in the table below.
Standard resistance
TESTER CONNECTION AND SPECIFIED CONDITION CHARTTester Connection Specified Condition 1 - 2 Below 1 Ω 3 - 4 Below 1 Ω (When battery voltage is not applied between terminals) 3 - 5 10 kΩ or higher (When battery voltage is not applied between terminals) 3 - 4 10 kΩ or higher (When battery voltage is applied to terminals 1 and 2) 3 - 5 Below 1 Ω (When battery voltage is applied to terminals 1 and 2) If the value is not as specified, replace the stop light control relay.