Code 25, 26 & 27: TRAC Sub-Throttle Valve: Notes

CODE 25, 26 & 27 DIAGNOSTIC

Code No.	Diagnosis	Trouble Area
25	A difference of 0.5V or greater arose between the voltage of the position signal (VSH) of the sub-throttle position sensor and the voltage requirement determined by the ECU from the speed of the sub-throttle motor.	Sub-throttle actuator. Throttle body (sub- throttle valve is stuck or operation is faulty) Sub-throttle position sensor. ECU
26	Even when the sub- throttle motor is controlled at wide open, the voltage of the sub-throttle position sensor signal (VSH) does not reach the wide open voltage level.	Sub-throttle actuator. Throttle body (sub- throttle valve is stuck or operation is faulty). Sub-throttle position sensor. ECU
27	The voltage of the sub-throttle position sensor signal (VSH) does not reach the full open voltage level when current to the sub- throttle motor is cut off.	Sub-throttle actuator. (return spring is disconnected) Sub-throttle position sensor. ECU