Mitsubishi Eclipse II technical information manual page 201

text version of content this owner's manual page from owners manual to the vehicle Mitsubishi Eclipse, year of production 1995 - 1999:

POWER TRAIN- Automatic Transaxle Adaptive Coast Down Scheduling Adaptive scheduling may result in delayed 4-3 or 3-2 downshifts under certain conditions in orderto maintain good shift quality.d Speed Control When the transmission temperature range is either bus should fail, this logic will not be initiated with warm or hot, the 4-3 shift pattern is modified to speed control “on”, and the vehicle may lose more kickdown earlier if a cruise control “on” signal is speed and not kick down on grades. received over the CCD bus from the PCM. If the Manifold Absolute Pressure (MAP) This signal is used to calculate changes in engineshift quality and reduce 3-4 shift hunting on steeper output torque to the input shaft of the transaxle. This information is used by the TCM to improveroad grades. A loss of this signal will cancel grade hunting detection logic. Throttle Failure A throttle default value of 25 degrees throttle opening able performance level. Throttle induced kickdowns is substituted to provide reasonable driveability. Third gear is substituted for fourth to provide a toler-will become unavailable, but selection of drive and low shift lever operation remains normal. CCD Bus Failure The initial predicted fluid temperature is based oneffects of this are as follows; Defaults are possible the battery temperature after an extended time off. if the actual transaxle temperature is within the ex- It is important to understand that if this data becomes treme cold range. The 3-4 shift will occur at a higher invalid (out of normal range or the CCD bus fails),speed for approximately the first minute of operation the TCM will substitute -3 degrees F. for ambient in-gear (see supercold“OD” shift schedule). A reduc- temperature. This is done because the control logic tion in upshift shift quality is possible for approxi- \ for the colder temperature range is designed tomately 4 minutes if the actual transaxle temperature tolerate an actual warmer transaxle. Some of theis in the warm to hot range.J Loss of Prime Protection Special logic is included in the fail safe routinesThe result will be a loss of oil pump prime and to identify a loss of oil pump prime. A no pressurepossibly a no drive condition. The special logic pre- condition is usually due to a low fluid level and vents the inappropriate setting of diagnostic trouble typically occurs following hard braking or cornering. This will cause the oil filter to be exposed to air.code. Torque Converter EMCC Logic The use of partial Electronically Modulated Converter Clutch (EMCC) is available at speeds as low as 17 mph, giving the advantage of improved fuel economy while buffering the rest of the power-train from engine firing pulses. Full EMCC is utilized under certain conditions to improve gas mileage. Both full EMCC I or partial EMCC may also be scheduled to help reduce I I heat build-up of the transaxle or its fluid under certain 1 %g’ 1-1 $!& . driving conditions. Torque converter full EMCC and partial EMCC avail- ability depends on many different input conditions. These include shift lever position (D, 2, L), current gear range (second, third, or fourth), engine coolant temperature, input speed, and throttle angle. No’ The outputs controlling the torque converter are; d EMCC, Partial EMCC, Full EMCC and Gradual to No EMCC. The boxes in the chart represent the four EMCC logic states.

owners manual Mitsubishi Eclipse

owners manual Mitsubishi Eclipse - year of production: 1995, 1996, 1997, 1998, 1999 - Mitsubishi Eclipse II technical information manual EN