Purpose/Function
The up switch detects the shift up operation of the selector lever.
The up switch signal is sent to the TCM via CAN and is used for manual shift control and engine-transaxle integration control.
Construction
The up switch is installed to the selector lever.
The up switch is an on/off type switch.

Operation
When the selector lever is in the shift up position (+), the up switch contact point closes.
Based on the opening and closing of the up switch contact point, the TCM detects that the shift up has been operated.

Up Switch Inspection [Fw6 A EL, Fw6 Ax EL]
ABS Wheel Speed Sensor And ABS Sensor RotorTheft Deterrent Horn Inspection
1. Disconnect the negative battery cable..
2. Remove the following parts:
a. Trunk end trim.
b. Rear scuff plate (RH).
c. Trunk side trim (RH).
d. Theft-deterrent horn.
3. Apply battery positive voltage to horn terminal A, and connect the horn retaining
bolt to ground as shown in the f ...
Positive Crankcase Ventilation (PCV) Valve
Purpose, Function
Prevents release of blow-by gas (unburnt gas) into the atmosphere.
The PCV valve is open/closed by the intake manifold vacuum.
Construction
The PCV valve is installed to the oil separator.
The PCV valve consists of a spring and valve.
...
Shift Control Module Removal/Installation [C66 M R]
Removal
1. Shift the shift lever to the neutral position.
2. Remove the plug hole plate..
3. Disconnect the negative battery cable..
4. Remove the air cleaner and air hose as a single unit..
5. Remove the battery and battery tray..
6. Disconnect the control cable from the transaxle.
a. ...