FixVault

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: