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3660-01
1. OVERVIEW
2WD4WD
The Model 6F24 6 speed automatic transaxle is electronically controlled. The control system is
comprised of the following components:
External transaxle control unit (TCU)
Input and output speed sensors
Six variable force solenoids(VFS) and two on/off solenoids
Torque converter
ATF temperature sensor -
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TCU controls the oil pressure for various internal clutches and brakes to select the gear. It also controls
the electronic elements, shift pressure and torque converter slip. If the system is defective, TCU provides
FMEC (Failure Mode Effect Control) to maintain the functionality of transaxle. This keeps the basic
function of transaxle (gear selection) even when there are failure in controls and power supply.
There are selector shaft position sensor (inhibitor switch) and oil temperature sensor in transaxle. In
manual mode, TCU receives the information from TGS (Transmission Gear Selector) through PCB
(Printed Circuit Board) when driver selects the manual shift mode. TCU communicates with other electric
control modules through CAN. In order to ensure a safe driving state and to prevent damage to the
automatic transmission, TCU switches to Limp-Home mode in the event of critical faults.
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The front sub frame consists of 4 body bush mountings(A) and 2 engine bush mountings(B) which
reduce the vibration from the powertrain and road, and also control the torque. And the two engine bush
mountings consist of an engine mounting which supports the engine powertrain and a transmission
mounting.
The engine side and transmission side mountings are rubber mountings with brackets and insulators
while the body mounting is a rubber bush mounting which is fitted to the frame.
Installation of front sub
frame (4WD)The installation of the front sub frame is the same for both automatic
transmission and manual transmission. For 4WD, the PTU and the
propeller shaft are installed.
Installation of front sub
frame (2WD)The installation of the front sub frame is the same for both automatic
transmission and manual transmission.
PTU assembly
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4015-01
Installation of rear sub
frame (4WD)The installation of the rear sub frame is the same for both automatic
transmission and manual transmission. For 4WD, the E-coupling, propeller
shaft and rear axle are installed.
Installation of rear sub
frame (2WD) The installation of the rear sub frame is the same for both automatic
transmission and manual transmission.
The rear sub frame system consists of body bush mountings and direct mountings which reduce the
vibration transmitted from the powertrain and road to the vehicle body.
For 4WD, it consists of 4 body mountings (bush mountings) and 2 axle mountings (bush mountings) and
for 2WD, it consists of 4 body mountings (direct mountings).
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Instrument cluster display related to TPMS (with standard)
DOT LCD display TPMS warning lamp Global warning lamp
2. LAYOUT 1. OVERVIEW
The TPMS is used to reduce the accident rate, enhance driving stability and avoid an unnecessary fuel
consumption and tire wear by monitoring the tire pressure and temperature to inform the driver of tire
pressure information and its status through the instrument cluster. The wheel module fitted in the tire
transmits the internal data for the tire to the TPMS ECU periodically through the wireless transmission.
The TPMS ECU can detect the positions of the wheel modules fitted to each wheel automatically and
sends the signal on tire condition through the CAN line to the instrument cluster so that the driver can
identify the wheel module in question.
Instrument cluster display related to TPMS (with supervision)
DOT LCD display TPMS warning lamp Global warning lamp