9000 CDE V6-2962cc 3.0L DOHC (B308) (1995)
Throttle Control Actuator: Description and Operation
Traction Control System (TCS) throttle Body, Description Of Function
-
The TCS throttle body is mounted beside the ordinary throttle body and consists of body, butterfly, electric motor and link arm. In the TCS OFF
mode, the current is cut and the throttle is opened by a spring.
Important
-
The TCS throttle must not be adjusted.
Feed To Butterfly Actuator Motor
-
The TCS butterfly actuator motor is fed voltage by a 500 Hz Pulse Width Modulation (PWM) outlet from pins 18 and 35 on the control module.
The motor can be driven in both directions by changing the poles.
-
When the butterfly is closed, the voltage across pins 18 and 35 is approximately 3.5 Volts.
-
In the case of mechanical or electrical faults in the actuator motor or position sensor, or in the connecting leads, diagnostic trouble codes are
registered by the system. The TCS OFF lamp lights and the system is disengaged.
-
As a spare part, the TCS throttle body is changed as one unit.
-
The TCS system is self-calibrating, see under "Control Module".