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:
Engine Abbreviations
AAS
Active Adaptive Shift
ABS
Antilock Brake System
ABDC
After Bottom Dead Center
ACC
Accessories
AFS
Adaptive Front Lighting System
ALC
...
Transaxle Fluid Temperature (Tft) Sensor [Fw6 A EL, Fw6 Ax EL]
Purpose/Function
The transaxle fluid temperature (TFT) sensor detects the ATF temperature
in the oil pan.
The transaxle fluid temperature (TFT) sensor signal is used for automatic
shift control, TCC control, line pressure control, direct electric shift control,
learning contr ...
Identification Numbers
Vehicle Information Labels
Vehicle Identification Number
The vehicle identification number legally identifies your vehicle. The number
is on a plate attached to the left top side of the dashboard. This plate can easily
be seen through the windshield.
Motor Vehicle Safety Standard Label
...
