Initialization

AA80E AUTOMATIC TRANSMISSION: AUTOMATIC TRANSMISSION SYSTEM: INITIALIZATION

1. PERFORM ROAD TEST TO ALLOW TCM TO LEARN

CAUTION:
* Perform the following procedures while strictly observing all traffic laws and speed limits.
* Do not accelerate or decelerate rapidly.
(a) "Road test" procedure is as follows:

(1) Warm up the engine.

(2) According to the replacement parts, perform the road test shown below.












HINT
* *1: After gradually accelerating a distance of approximately 130 m (426.4 ft.) for a period of approximately 15 seconds, gradually decelerate a distance of approximately 45 m (147.6 ft.) for a period of approximately 5 seconds.
* *2: After gradually accelerating a distance of approximately 40 m (131.2 ft.) for a period of approximately 8 seconds, gradually decelerate a distance of approximately 20 m (65.6 ft.) for a period of approximately 5 seconds.
* When decelerating, apply the brakes as necessary to adjust the vehicle speed.





HINT
* *1: The speed, time and distance values are approximate values.
* *2: After accelerating, the deceleration does not need to be performed immediately.

(3) Repeat until the shift shock and engine speed overrun settles down.

NOTICE:
Before repeating tests, stop the vehicle once, and then start moving the vehicle again.

2. RESET MEMORY

NOTICE:
* Perform the Reset Memory (AT initialization) when replacing the engine assembly or ECM.
* The Reset Memory can be performed only with the Techstream.
* Reset Memory cannot be completed by only reconnecting the cable to the negative (-) battery terminal.

HINT
The TCM memorizes the vehicle conditions when the ECT controls the automatic transmission assembly and engine assembly.

(a) The "Reset Memory" procedure is as follows:

(1) Turn the engine switch off.

(2) Connect the Techstream to the DLC3.

(3) Turn the engine switch on (IG).

(4) Turn the Techstream on.

(5) Enter the following menus: Powertrain / ECT / Utility / Reset Memory.

NOTICE:
After performing the Reset Memory, be sure to perform the ROAD TEST Road Test described previously.