Toyota Tundra. Manual — part 2784

2009 TRANSMISSION

AB60F Automatic Transaxle - Tundra

AUTOMATIC TRANSMISSION SYSTEM

PRECAUTION

NOTE:



When disconnecting the cable from the negative (-) battery terminal,
initialize the following systems after the cable is reconnected (see
INITIALIZATION ).



Perform the Reset Memory procedures (A/T initialization) after replacing
the automatic transmission assembly, valve body assembly or any of the
shift solenoid valves (see INITIALIZATION ).

HINT:

Reset Memory cannot be completed by only reconnecting the cable to the
negative (-) battery terminal.

CAUTION: When using compressed air, always aim away from yourself to prevent

Automatic Transmission Fluid (ATF) or kerosene from spraying on your
face.

NOTE:



The automatic transmission is composed of precision-made parts,
necessitating careful inspection before reassembly because even a small
nick could cause fluid leakage or affect performance.



The procedures are organized so that you work on only one component
group at a time. This will help avoid confusion with similar-looking parts of
different sub-assemblies being on your workbench at the same time.



The component groups are inspected and repaired from the converter
housing side.



Whenever possible, complete the inspection, repair and reassembly before
proceeding to the next component group. If a defect is found in a certain
component group during reassembly, inspect and repair this group
immediately. If a component group cannot be assembled because parts
are being ordered, be sure to keep all parts of the group in a separate
container while proceeding with disassembly, inspection, repair and
reassembly of other component groups.



Use of Toyota Genuine ATF WS is recommended.



All disassembled parts should be washed clean, and compressed air
should be blown through any fluid passages and holes.



Dry all parts with compressed air. Never use a cloth.

2009 Toyota Tundra

2009 TRANSMISSION AB60F Automatic Transaxle - Tundra

2009 Toyota Tundra

2009 TRANSMISSION AB60F Automatic Transaxle - Tundra

DEFINITION OF TERMS

DEFINITION OF TERMS



The recommended ATF or kerosene should be used for cleaning.



After cleaning, the parts should be arranged in the order they were
removed for efficient inspection, repairs, and reassembly.



New discs for the brakes and clutches that will be used for replacement
must be soaked in ATF for at least 15 minutes before reassembly.



All oil seal rings, clutch discs, clutch plates, rotating parts, and sliding
surfaces should be coated with ATF prior to reassembly.



All old gaskets and rubber O-rings must be replaced.



Do not apply adhesive cement to gaskets and similar parts.



Make sure that the ends of the snap rings are not aligned with any cutouts.
Also make sure that snap rings are correctly installed into the grooves.



If a worn bushing is to be replaced, the sub-assembly containing the
bushing must also be replaced.



Check the thrust bearings and races for wear or damage. Replace them if
necessary.



Use petroleum jelly to keep parts in place.



When working with FIPG material, perform the following:

Using a razor blade and gasket scraper, remove all old FIPG material from
the gasket surface.

Clean all components thoroughly to remove all foreign matter.

Clean both sealing surfaces with a non-residue solvent.

Apply FIPG material in a continuous line approximately 1 mm (0.0394 in.)
in diameter on the sealing surface.

Reassemble parts within 10 minutes of applying FIPG material. Failing to
do so will require the FIPG material to be removed and reapplied.

Term

Definition

Monitor description

Description of what the ECM monitors and how it detects malfunctions
(monitoring purpose and its details).

Related DTCs

Group of diagnostic trouble codes that are output by the ECM based on the same
malfunction detection logic.

Typical enabling
condition

Preconditions that allow the ECM to detect malfunctions.
With all preconditions satisfied, the ECM sets the DTC when the monitored value
(s) exceeds the malfunction threshold(s).

The priority order that is applied to monitoring if multiple sensors and

2009 Toyota Tundra

2009 TRANSMISSION AB60F Automatic Transaxle - Tundra

PARTS LOCATION

Sequence of operation

components are used to detect the malfunction.
While a sensor is being monitored, the next sensor or component will not be
monitored until the previous monitoring has concluded.

Required
sensor/components

The sensors and components that are used by the ECM to detect malfunctions.

Frequency of
operation

The number of times that the ECM checks for malfunctions per driving cycle.
"Once per driving cycle" means that the ECM detects the malfunction only one
time during a single driving cycle.
"Continuous" means that the ECM detects the malfunction every time the
enabling condition is met.

Duration

The minimum time that the ECM must detect a continuous deviation in the
monitored value(s) before setting a DTC. This timing begins after the "typical
enabling conditions" are met.

Malfunction
thresholds

Beyond this value, the ECM will conclude that there is a malfunction and set a
DTC.

MIL operation

MIL illumination timing after a defect is detected.
"Immediately" means that the ECM illuminates the MIL the instant the ECM
determines that there is a malfunction.
"2 driving cycles" means that the ECM illuminates the MIL if the same
malfunction is detected again in the 2nd driving cycle.

Component operating
range

Normal operation range of sensors and solenoids under normal driving conditions.
Use these ranges as a reference.
They cannot be used to judge if a sensor or solenoid is defective or not.

2009 Toyota Tundra

2009 TRANSMISSION AB60F Automatic Transaxle - Tundra

Fig. 1: Identifying Automatic Transmission System Components (1 Of 3)
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.

2009 Toyota Tundra

2009 TRANSMISSION AB60F Automatic Transaxle - Tundra