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Home >> Lexus >> 1998 >> SC 400 >> Repair and Diagnosis >> Brakes >> Traction Control >> Anti-Lock Brake System - Without Traction Control >> Diagnostic Tests >> DTC 49: Stop Light Switch Circuit >> Circuit Description

Circuit Description

DTC is set when ABS system is not operating, ABS ECU detects 9.5-18 volts on A24 connector terminal No. 13 (Black/Yellow wire), and an open exists in stoplight switch circuit for .3 seconds or more. Possible causes are:

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