Rep115859 Posted March 3, 2020 Share Posted March 3, 2020 Looking for the location of the wiper relays on my 1999 LS 400. Anyone? Quote Link to comment Share on other sites More sharing options...
paulo57509 Posted March 4, 2020 Share Posted March 4, 2020 The wiper/washer is controlled by the Body ECU. The wiper motor circuit diagram doesn't show any relays. If there are relays, they're probably inside the Body ECU box. What kind of problem are you having? DI-685 Body Control System - Wiper Motor Circuit.pdf BE-82 Wiper and Washer System - Location.pdf Quote Link to comment Share on other sites More sharing options...
Rep115859 Posted March 4, 2020 Author Share Posted March 4, 2020 Wipers only work on high speed. No low or intermittent speeds. Does not park properly. Quote Link to comment Share on other sites More sharing options...
Charlie Borgida Posted June 6, 2020 Share Posted June 6, 2020 On 3/3/2020 at 9:34 PM, Rep115859 said: Wipers only work on high speed. No low or intermittent speeds. Does not park properly. Quote Link to comment Share on other sites More sharing options...
vissine Posted July 3, 2020 Share Posted July 3, 2020 On 3/3/2020 at 2:57 PM, Rep115859 said: Looking for the location of the wiper relays on my 1999 LS 400. Anyone? There is no relay for the wiper. You have to inspect it at the wiper motor connector. If both high and low speeds are working at the motor, then you have to troubleshoot the switch. It maybe as simple as dirty connector. Quote Link to comment Share on other sites More sharing options...
Miramarrich Posted November 27, 2022 Share Posted November 27, 2022 I have a 2000 LS 400 in pristine condition but the wipers only work on high speed and the wipers stop any where I changed the switch and the motor but that did not solved the problem. I would appreciate any help 1 Quote Link to comment Share on other sites More sharing options...
paulo57509 Posted December 1, 2022 Share Posted December 1, 2022 On 11/26/2022 at 5:01 PM, Miramarrich said: I have a 2000 LS 400 in pristine condition but the wipers only work on high speed and the wipers stop any where I changed the switch and the motor but that did not solved the problem. I would appreciate any help The Body ECU is bad. Quote Link to comment Share on other sites More sharing options...
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