World Transmission Operation Flashcards
World Transmission Operation
1995, 1996, 2006, 2009
The T-Handle shift selector has R, N, D, 4, 3, 2, 1 a MODE button and a digital display.
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World Transmission Operation
When a range selection is made the digital display shows the chosen operation (if the ECU determines the shift is acceptable) and the transmission will shift to the initial range as indicated on the display. While in the D (Drive) mode it is not necessary to select the right moment to upshift or downshift during changing road and traffic conditions, the transmission will do it all for you.
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World Transmission Operation
Unless road conditions dictate using a specific gear, the full automatic position will provide sufficient vehicle performance. Under full acceleration (100% pedal travel) the transmission shift points occur at approximately _____ rpm.
2100
World Transmission Operation
When all segments of the digital display are illuminated for more than ___ seconds, the ECU did not complete initialization.
When display is blank, there is no power to the selector.
When display shows a “cat eye” symbol, a selector-related fault code has been logged.
12
World Transmission Operation
Hold Over Button - 2006 - 2009
Shift selector has 3 locked positions to prevent accidentally selecting Reverse, Neutral or Drive.
Select R, N, D by holding override button and move lever.
Once D is selected, lower forward range positions may be selected without pressing the hold override.
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World Transmission Operation
Mode button - TO access 5th gear, allows shifting from 4th to 5th. Also diagnostic code information
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World Transmission Operation
Conditions which illuminate the CHECK TRANS light will disable the shift selector and the digital display will show the range actually attained. The transmission will not shift into range if a CHECK TRANS code is active. When the display shows either R or D has been requested and the display is flashing, the requested range has not been achieved due to an inhibit function. Some inhibit functions are vehicle-related and will not result in diagnostic codes.
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World Transmission Operation
If the apparatus has a T handle Range selector the vehicle will not start unless _____ has been selected.
Neutral
World Transmission Operation
Unless road conditions dictate using a specific gear, the full automatic position will provide sufficient performance.
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World Transmission Operation
First gear range - used for pulling through mud, when max traction is desired, maneuvering in tight spaces, driving up or down steep grades
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World Transmission Operation
R (Reverse)
Completely stop the vehicle and let the engine return to idle before shifting from a
forward range to Reverse or from Reverse to a forward range.
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World Transmission Operation
Do not idle in R (Reverse) for more than ___ minutes. Extended idling in R (Reverse) may cause transmission damage. Always select N (Neutral) whenever time at idle exceeds five minutes.
five
World Transmission Operation
When ,taking a shift be sure to always plan in Neutral when transitioning from reverse to a forward range and visa versa
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Transmission speed range 1996 - 2003
Gear RPM Speed 1 2100 \_\_\_\_ 2 2100 \_\_\_\_ 3 2100 \_\_\_\_ 4 2100 \_\_\_\_ 5 2100 \_\_\_\_
15 23 33 53 68
Transmission speed range 2006 - 2009
Gear RPM Speed 1 2100 \_\_\_\_ 2 2100 \_\_\_\_ 3 2100 \_\_\_\_ 4 2100 \_\_\_\_ 5 2100 \_\_\_\_
14 26 35 50 68
World Transmission Operation
Diagnostic codes are numerical indications relating to a malfunction in transmission
operation. Each code consists of a ___ digit main code and a two-digit subcode. These
codes are logged in a list in the World Transmission ECU memory with the most severe or otherwise most recent code listed first. A maximum of ___ codes (numbered d1
through d5) may be listed in memory at one time.
two
five
Transmission -
A maximum of ___ codes (numbered d1
through d5) may be listed in memory at one time.
five
World Transmission Operation
As codes are added, the oldest nonactive code is dropped from the list. If all codes are active, the code with the ____ priority that is not included on the severity list is dropped from the list.
lowest
World Transmission Operation
An active code is any code that is current in the ECU _____ making process. Historical codes are codes that are retained in the ECU’s memory and will not necessarily affect the ECU decision making process.
decision
World Transmission Operation
1995/96 - 2006/09
To enter the transmission diagnostic mode, press the Display Mode button on the lever
shift selector twice. This will start the transmission diagnostic code sequence(s). The first code sequence starts with the alpha-numeric code designation d1, then main code
(two digits), sub-code (two digits), and ends with alpha-numeric designation d1 and then
the sequence repeats. Press the mode button momentarily to display codes for position(s)
d2 through d5 in the same manner.
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World Transmission Operation
After a fixed number of ignition cycles, a code may be deleted from memory if it has not recurred.
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World Transmission Operation
Entering Diagnostic Mode - 2000 - 2003
Push the up and down arrows together twice.
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World Transmission Operation
Exiting diagnostic mode
1995 - 2003 - Pres and hold the MODE button for approx ___ seconds and resume operation
10
World Transmission Operation
Exiting diagnostic mode
2006 - 2009 - Hold the mode button for ___ seconds to clear active codes & resume operation. Some codes are self - clearing & others require ignition cycles
3
World Transmission Operation
Because the transmission fluid cools, lubricates, and transmits hydraulic power, it is important that the proper fluid level be maintained at all times.
If the fluid level is too low, the converter and clutches do not receive an adequate supply of fluid. If fluid level is too high, the fluid can aerate. Aerated fluid can cause the transmission to shift erratically or overheat.
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World Transmission Operation
checking transmission fluid - 1995/96 2006/09
Park on level surface, shift to N, apply parking brake
On the lever shift selector, press the Display Mode button ____
once
checking transmission fluid - 2000 - 2003
Park on level surface, shift to N, apply parking brake
On the push button shift selector, simultaneously press the up and down arrows ___
once
World Transmission Operation
Correct Fluid Level: transmission
“OL” is displayed (OL represents Fluid (Oil) Level Check Mode), followed by “OK”. The “OK” display indicates the fluid is within the “OK” zone.
The sensor display and the transmission dipstick may not agree exactly because
the oil level sensor compensates for fluid temperature.
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World Transmission Operation
“OL” is displayed (OL represents Fluid (Oil) Level Check Mode), followed by “LO” (LO represents Low Oil Level) and the number of quarts the transmission fluid is low. Example: “02” indicates 2 additional quarts of fluid will bring the fluid level within the middle of the “OK” zone.
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World Transmission Operation
“OL” is displayed (OL represents Fluid (Oil) Level Check
Mode), followed by “HI” (HI represents High Oil Level) and the number of quarts the transmission is overfilled. Example: “01” indicates 1 quart of fluid above the full transmission level.
2006-2009 Low or High numbers will be indicated by a “1” not a “01”
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World Transmission Operation
Invalid for Display: “OL” is displayed (OL represents Fluid (Oil) Level Check Mode), followed by - - and a numerical display. The numerical display is a fault code and indicates conditions are not proper to receive the fluid level information, or that there is a system malfunction.
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World Transmission Operation
95/96 - To exit fluid level display mode, press the display button on the lever shift selector twice or momentarily move the shift selector to any range and back to neutral
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World Transmission Operation
2000-2003 TO exit the fluid level display mode, press any range button on the pushbutton shift selector.
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World Transmission Operation
Dipstick - When checking transmission level, if there is not a close correspondence between digital readout and dipstick reading, always refer to the _____ for an accurate reading
dipstick
World Transmission Operation
In order for the digital readout on the transmission pushbutton range selector to display transmission fluid level readings, the following conditions must be met:
- The fluid temperature must be above ___ F and below ___ F.
- The transmission must be in N (Neutral).
- The apparatus has been stationary for approximately
____ minutes to allow the fluid to settle. - The engine is at idle.
140 degrees and 220 degrees
2
World Transmission Operation
Manual hot trans fluid check
Fluid at operating temp of ___ to ___ F
level surface Parking brake Chock wheels Neutral Raise cab with safety lock Clean area around dipstick to insure no dirt or debris enter trans
1-Run engine at idle 500-800 rpm
2-Wipe dipstick clean. safe operating level is anywhere within HOT RUN band on dipstick
3- Adjust fluid as necessary to get within this band.
4 - Must be in Neutral with parking brake set
160 - 200
World Transmission Operation
Cold trans check 95/96 00/03
Can be made in lieu of the hot check to determine if the trans has enough fluid to be operated safely until hot check can be made
Fluid level should be at or near the HOT FULL mark because he fluid level will drop.
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World Transmission Operation
2006/09 - A Cold Check may be made when the fluid temperature is ___ F – ___ F. Before the engine is started, pull the transmission dipstick and confirm that the transmission fluid level is near the HOT RUN mark.
To perform a Cold Check, do the following:
- Start and run the engine at idle (500 to 800 rpm) in N (Neutral) for about one minute.
- Park the vehicle on a level surface, apply the parking brake, chock the wheels and
shift to N (Neutral). - With the engine idling (500 to 800 rpm), shift to D (Drive) and then to R (Reverse) to
clear air from the hydraulic circuits. - Shift to N (Neutral) and leave engine at idle.
- The transmission oil dipstick is located in the access panel at the rear of the engine
doghouse. Clean the area around the dipstick to insure that no dirt or debris enters the
transmission. - Remove the dipstick and wipe clean. Reinsert dipstick into the transmission.
- Remove the dipstick and check the fluid level. If the fluid level on the dipstick is
within the COLD RUN band, the level is satisfactory. If the fluid level is not within this band, add or drain fluid as necessary to bring the level within the COLD RUN band. - Perform a Hot Check at the first opportunity after normal operating temperature
(160oF – 200oF) is reached.
60 - 120 degrees
World Transmission Operation
The electronic control system is programmed to inform the operator of a problem with the transmission system and automatically take action to protect the operator, vehicle and transmission. When the Electronic Control Unit (ECU) detects a problem condition, the ECU restricts shifting, turns on the CHECK TRANS light and registers a diagnostic code.
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World Transmission Operation
If the CHECK TRANS light does not illuminate during ignition or the light remains on after ignition, the system should be checked immediately.
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World Transmission Operation
Continued illumination of the CHECK TRANS light during vehicle operation (other than
start-up) indicates that the ECU has signaled a diagnostic code. Illumination of the CHECK TRANS light is accompanied by a flashing display from the shift selector. The shift selector display will show the actual range attained and the transmission will not respond to shift selector requests.
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World Transmission Operation
Generally, while the CHECK TRANS light is on, up shifts and downshifts will be restricted and direction changes will not occur. Lever shift selectors do not respond to any operator shift requests while the CHECK TRANS light is illuminated. The lockup clutch is disengaged when transmission shifting is restricted or during any critical
transmission malfunction.
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