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Lexus LS600h Problems

The Supplemental Restraint System (SRS) Warning Light May Illuminate on Lexus LS600h

Problem Description and Possible Solution

The supplemental restraint system (SRS) warning light may illuminate with code B1861 and/or B1866 stored. Our technicians tell us that replacing a section of wiring harness behind the dashboard may be necessary to correct this concern.

(4 people reported this problem)

Lexus LS600h Vehicles With This Problem

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Average mileage: (–)
3 model years affected: 2008, 2009, 2010
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Brake problem? Or maybe a faulty head gasket cylinder?
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