Mazda CX-5 Service & Repair Manual: Shift Pressure Control (Learning Control) [Fw6 A EL, Fw6 Ax EL]
Outline
-
The TCM optimizes the hydraulic pressure for clutch engagement and disengagement through learning correction of the clutch engagement pressure.
NOTE:
-
The clutch engagement pressure learning value stored in the TCM is not cleared even if the negative battery terminal is disconnected. Therefore, if the control valve body is replaced, the learning value stored in the TCM and the control valve body specification are incompatible and engine rev-up may occur or shift shock may increase. Due to this, if the control valve body is replaced, it is necessary to perform the initial learning.
Construction
Operation
-
The TCM learns engine performance changes resulting from past shifting and deterioration over time of the transaxle and performs learning correction for optimum clutch engagement pressure during initial shifting.
Shift Pressure Control (Direct Electric Shift Control) [Fw6 A EL, Fw6 Ax EL]
Outline
The TCM drives shift solenoids No.1, 2, 3, 4, the pressure control solenoid,
and the on/off solenoid based on inputs signals from each switch and sensor,
and performs direct elect ...
Shift Pressure Control (Line Pressure Control) [Fw6 A EL, Fw6 Ax EL]
Outline
The TCM drives the pressure control solenoid and adjusts the pressure based
on the accelerator pedal depression amount, vehicle speed, ATF temperature,
and gear shift signal. As a ...
Other materials:
Camshaft Position (CMP) Sensor
Purpose/Function
Detects the camshaft speed as basic information for mainly determining the
fuel injection timing and ignition timing.
Detects the camshaft speed and inputs it to the PCM as a CMP signal.
Construction
Intake CMP sensor
Installed on the cylinder head.
...
Refrigerant Line
Purpose
The system piping connects each related part of the refrigerant system.
Construction
Block-type piping has been adopted to the pipe connection, improving the
efficiency of piping related servicing.
The pipes in the piping system consist of the following parts.
...
Customer Assistance (Puerto Rico)
Your complete and permanent satisfaction is our business. That is why all Authorized
Mazda Dealers have the knowledge and the tools to keep your Mazda vehicle in top
condition.
If you have any questions or recommendations for improvement regarding the service
of your Mazda vehicle or servicin ...