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Home >> Lexus >> 1997 >> ES 300 >> Repair and Diagnosis >> Brakes >> Traction Control >> Anti-Lock Brake System - With Traction Control >> Self-Diagnostics >> DTC 61: Engine Control System Malfunction >> Circuit Description
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Circuit Description

NOTE: If trouble occurs in engine control system, ECU performs a fail safe function prohibiting TRAC control.

DTC is set when TRAC system is turned on, ABS/TRAC ECU detects normal ECM communication, ECM is providing engine self-diagnostic information, and engine speed is 500 RPM of more for .48 seconds or more.

DTC is also on when ABS/TRAC ECU detects normal ECM communication, ECM is providing engine self-diagnostic information, engine speed is 500 RPM of more for one second or more, and ECM records DTC. Possible causes are:

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