DTC P1566 Or 54: Input Signal Circuit: Notes

WARNING: This page is about a different car, the 2000 Lexus SC 400, 2000 Lexus SC 300, 2000 Lexus LS 400, 2000 Lexus GS 400, and 2000 Lexus GS 300. However, it is still accessible from the selected car via links, so may be relevant.

NOTE: This test applies to GS300 and GS400 only. On LS400, SC300 and SC400, check stoplight switch and cruise control switch input voltages. See ECM PIN VOLTAGE TESTS .