Circuit Description

This sensor detects the opening angle of the sub-throttle valve and sends the appropriate signals to the ECU. If a trouble signal is input, the ECU prohibits TRAC control.

CODE 47 & 48 DIAGNOSTIC

Code No.	Diagnosis	Trouble Area
47	When the sub-throttle valve is fully closed, the idle switch does not come on. When idle switch is ON, terminal VSH of ECU is 1.45V or higher.	Sub-throttle position sensor. (Idle switch remains ON) Harness or connector between sub- throttle position sensor and ABS & TRAC ECU. (open or short in IDL2 harness). ECU
48	Terminal VSH of ECU is 4.3V or higher or terminal VSH of ECU is 0.2V or lower when the accel. pedal is depressed (Idle SW OFF).	Sub-throttle position sensor. (Idle switch remains OFF) Harness or connector between ABS & TRAC ECU and engine & ECT ECU. (+B short or ground short in VSH harness). ECU