Mazda CX-5 Service & Repair Manual: Shift Pressure Control (Learning Control) [Fw6 A EL, Fw6 Ax EL]
Outline
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The TCM optimizes the hydraulic pressure for clutch engagement and disengagement through learning correction of the clutch engagement pressure.
NOTE:
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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
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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:
Extractor Chamber Removal/Installation
1. Disconnect the negative battery cable..
2. Remove the following parts:
a. Rear splash shield.
b. Rear combination light.
c. Rear bumper.
3. Insert a tape-wrapped flathead screwdriver shown in the figure and remove
clips in the direction of arrow (1).
4. Remove the extractor cham ...
Propeller Shaft Inspection
1. Measure the propeller shaft center runout using the dial gauge.
If it exceeds the maximum specification, replace the propeller shaft as a
single component.
Propeller shaft maximum runout
0.8 mm {0.031 in}
2. Inspect the play and rotation of the joint by turning ...
M Position Switch [Fw6 A EL, Fw6 Ax EL]
Purpose/Function
The M position switch detects that the selector lever is in the M position.
The M position switch signal is sent to the TCM via CAN, and is used for
manual shift control and engine-transaxle integration control.
Construction
The M position switch is in ...
