Toyota Tacoma 2015-2018 Service Manual: Initialization
INITIALIZATION
1. RESET MEMORY
NOTICE:
- Perform Reset Memory (AT initialization) when replacing the automatic transmission assembly, transmission valve body assembly or any of the shift solenoid valves.
- Reset Memory can be performed only with the Techstream.
HINT:
The ECM memorizes the vehicle conditions when the ECT controls the automatic transmission assembly and transmission valve body assembly. Therefore, when the automatic transmission assembly, transmission 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.
(c) Turn the Techstream 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
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) 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.
(c) Turn the Techstream on.
(d) Enter the following menus: Powertrain / Engine and ECT / Utility / ATF Thermal Degradation Estimate Reset.
Road Test
ROAD TEST
1. PROBLEM SYMPTOM CONFIRMATION
(a) Based on the result of the customer problem analysis, try to reproduce the
symptoms. If the problem is that the transmission does not shift up or down ...
Manual Shifting Test
MANUAL SHIFTING TEST
1. PERFORM MANUAL SHIFTING TEST
HINT:
Using this test, it can be determined whether a problem is in an electrical
circuit or if it is a mechanical problem in the tr ...
Other materials:
Inspection
INSPECTION
PROCEDURE
1. INSPECT OIL PUMP RELIEF VALVE
(a) Coat the oil pump relief valve with engine oil and check that it
falls smoothly into the valve hole by its own weight.
If the valve does not fall smoothly, replace the timing chain cover assembly.
...
Driver Side Power Window Auto Up / Down Function does not Operate with Power
Window Master Switch
DESCRIPTION
If the manual up/down function can be performed but the auto up/down function
cannot, then the fail-safe mode may be functioning.
If the power window initialization (See page
) has not been performed, the auto up/down function will not operate.
WIRING DIAGRAM
CAUTION / NOTICE ...
Portable Player cannot be Registered
CAUTION / NOTICE / HINT
HINT:
Some versions of "Bluetooth" compatible audio players may not function, or the
function may be limited using the navigation receiver assembly, even if the portable
audio player itself can play files (See page ).
PROCEDURE
1.
CHE ...
