Toyota 4Runner: Initialization

Toyota 4Runner Service Manual / Drivetrain / A750e Automatic Transmission / Transaxle / Automatic Transmission System / Initialization

INITIALIZATION

1. RESET MEMORY

NOTICE:

Perform Reset Memory (AT initialization) when replacing the automatic transmission assembly, valve body assembly or any of the shift solenoid valves.
Reset Memory can only be performed with the Techstream.

HINT:

The ECM memorizes the control conditions of the automatic transmission assembly and engine assembly. Therefore, when the automatic transmission assembly, valve body assembly or any of the shift solenoid valves has been replaced, it is necessary to reset the memory so that the ECM can memorize the new information.

The reset procedure is as follows.

(a) Connect the Techstream to the DLC3.

(b) Turn the ignition switch to ON.

(d) Enter the following menus: Powertrain / Engine and ECT / Utility / Reset Memory.

NOTICE:

After performing Reset Memory, be sure to perform the Road Test (See page ) described earlier.

HINT:

The ECM learns through the Road Test.

2. ATF THERMAL DEGRADATION ESTIMATE RESET

NOTICE:

If either of the following conditions is met, perform ATF Thermal Degradation Estimate Reset.

The ATF has been replaced.
HINT:

If 50000 or more is displayed for the Data List item "ATF Thermal Degradation Estimate", thermal degradation of the ATF is suspected. Perform ATF Thermal Degradation Estimate Reset after replacing the ATF.
Approximately 50% or more of the ATF has been replaced during a repair of the transmission or a similar operation.

(a) Connect the Techstream to the DLC3.

(b) Turn the ignition switch to ON.

NOTICE:

Do not start the engine.

(d) Enter the following menus: Powertrain / Engine and ECT / Utility / ATF Thermal Degradation Estimate Reset.

Manual Shifting Test

MANUAL SHIFTING TEST 1. MANUAL SHIFTING TEST HINT: Through this test, it can be determined whether the trouble occurs in an electrical circuit or if it is a mechanical problem in the tr ...

Monitor Drive Pattern

MONITOR DRIVE PATTERN 1. TEST MONITOR DRIVE PATTERN FOR ECT CAUTION: Perform this drive pattern on a level surface and strictly observe the posted speed limits and traffic laws while driving. HI ...

Other materials about Toyota 4Runner:

Reassembly
REASSEMBLY PROCEDURE 1. INSTALL SHIFT LOCK CONTROL ECU SUB-ASSEMBLY (a) Attach the 3 claws to install the shift lock control ECU to the transmission floor shift. (b) Connect the shift lock solenoid connector to the shift lock control ECU. 2. INSTALL IND ...

Rear Brake Flexible Hose
Components COMPONENTS ILLUSTRATION ILLUSTRATION Removal REMOVAL CAUTION / NOTICE / HINT HINT: Use the same procedure for the RH and LH sides. The procedure listed below is for the LH side. PROCEDURE 1. REMOVE REAR WHEEL 2. ...