Toyota Tundra. Manual — part 2789

c. Turn the Techstream on.

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

HINT:

The ECM learns through the Road Test.

MONITOR DRIVE PATTERN

1. TEST MONITOR DRIVE PATTERN FOR ECT

HINT:

Performing this drive pattern is one method to simulate the ECT's malfunction detection conditions. The
DTCs may not be detected through ordinary, everyday driving. Also, DTCs may not be detected through
this drive pattern.

a. Preparation for driving

1. Warm up the engine sufficiently (engine coolant temperature is 60°C (140°F) or higher).

2. Drive the vehicle when the atmospheric temperature is -10°C (14°F) or higher. Malfunctions

are not detected when the atmospheric temperature is less than -10°C

b. Drive pattern

1. Drive the vehicle through all the gears. Stop --> 1st --> 2nd --> 3rd --> 4th --> 5th --> 5th

(lock-up ON) --> 6th --> 6th (lock-up ON).

2. Repeat the above drive pattern 3 times or more.

NOTE:

After performing the Rest Memory, be sure to perform ROAD TEST
described earlier.

CAUTION: Perform this drive pattern on a level surface and strictly observe the

posted speed limits and traffic laws while driving.

NOTE:



When using the Techstream, the monitor status can be checked in

Data List (see DATA LIST/ACTIVE TEST ).



In the event that the drive pattern must be interrupted (due to traff
conditions or other factors), the drive pattern can be resumed and
most cases, the monitor can be completed.

2009 Toyota Tundra

2009 TRANSMISSION AB60F Automatic Transaxle - Tundra

HINT:

*: Drive at such a speed in the uppermost gear to engage lock-up. The vehicle can be driven
at a speed lower than the speed shown in the above diagram under the lock-up condition.

PROBLEM SYMPTOMS TABLE

HINT:



Use the table below to help determine the cause of the problem symptom. The potential causes of the
symptoms are listed in order of probability in the "Suspected area" column of the table. Check each
symptom by checking the suspected areas in the order they are listed. Replace parts as necessary.



The Matrix Table is divided into 2 chapters. When troubleshooting, check Chapter 1 first. If instructions
are given in Chapter 1 to proceed to 2, proceed as instructed.



If the instruction "Proceed to next circuit inspection shown in problem symptoms table" is given in the
flowchart for a circuit, proceed to the next suspected area in the table.



If the problem still occurs even though there are no malfunctions in any of the circuits, check the ECM
and replace it if necessary.

Fig. 8: Identifying Vehicle Speed Driving Pattern
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.

NOTE:

It is necessary to drive the vehicle for approximately 30 minutes
to detect DTC P0711 (No. 1 ATF temperature sensor
malfunction).

2009 Toyota Tundra

2009 TRANSMISSION AB60F Automatic Transaxle - Tundra



*: When the circuit is defective, a DTC may be output.

1. CHAPTER 1: ELECTRONIC CIRCUIT MATRIX TABLE

PROBLEM SYMPTOMS TABLE

Symptom

Suspected Area

Reference

No up-shift (1st -> 2nd)

Shift solenoid
valve S1 circuit*

DTC P0973, P0974: SHIFT SOLENOID "A" CONTROL
CIRCUIT LOW (SHIFT SOLENOID VALVE S1);
SHIFT SOLENOID "A" CONTROL CIRCUIT HIGH
(SHIFT SOLENOID VALVE S1)

ECM

ELECTRONIC CIRCUIT INSPECTION PROCEDURE

No up-shift (2nd -> 3rd)

Shift solenoid
valve S2 circuit*

DTC P0976, P0977: SHIFT SOLENOID "B" CONTROL
CIRCUIT LOW (SHIFT SOLENOID VALVE S2);
SHIFT SOLENOID "B" CONTROL CIRCUIT HIGH
(SHIFT SOLENOID VALVE S2)

ECM

ELECTRONIC CIRCUIT INSPECTION PROCEDURE

No up-shift (3rd -> 4th)

Shift solenoid
valve S3 circuit*

DTC P0979, P0980: SHIFT SOLENOID "C" CONTROL
CIRCUIT LOW (SHIFT SOLENOID VALVE S3);
SHIFT SOLENOID "C" CONTROL CIRCUIT HIGH
(SHIFT SOLENOID VALVE S3)

Engine coolant
temperature
sensor circuit*

DIAGNOSTIC TROUBLE CODE TABLE

ECM

ELECTRONIC CIRCUIT INSPECTION PROCEDURE

No up-shift (4th -> 5th)

Shift solenoid
valve S4 circuit*

DTC P0982, P0983: SHIFT SOLENOID "D" CONTROL
CIRCUIT LOW (SHIFT SOLENOID VALVE S4);
SHIFT SOLENOID "D" CONTROL CIRCUIT HIGH
(SHIFT SOLENOID VALVE S4)

Shift solenoid
valve SR circuit*

DTC P0985, P0986: SHIFT SOLENOID "E" CONTROL
CIRCUIT LOW (SHIFT SOLENOID VALVE SR);
SHIFT SOLENOID "E" CONTROL CIRCUIT HIGH
(SHIFT SOLENOID VALVE SR)

Shift solenoid
valve SL1
circuit*

DTC P0748: PRESSURE CONTROL SOLENOID "A"
ELECTRICAL (SHIFT SOLENOID VALVE SL1)

Shift solenoid
valve SL2
circuit*

DTC P0778: PRESSURE CONTROL SOLENOID "B"
ELECTRICAL (SHIFT SOLENOID VALVE SL2)

Engine coolant
temperature
sensor circuit*

DIAGNOSTIC TROUBLE CODE TABLE

ECM

ELECTRONIC CIRCUIT INSPECTION PROCEDURE

Park/neutral
position switch
circuit*

DTC P0705: TRANSMISSION RANGE SENSOR
CIRCUIT MALFUNCTION (PRNDL INPUT)

2009 Toyota Tundra

2009 TRANSMISSION AB60F Automatic Transaxle - Tundra

No up-shift (5th -> 6th)

Engine coolant
temperature
sensor circuit*

DIAGNOSTIC TROUBLE CODE TABLE

Shift solenoid
valve S2 circuit*

DTC P0976, P0977: SHIFT SOLENOID "B" CONTROL
CIRCUIT LOW (SHIFT SOLENOID VALVE S2);
SHIFT SOLENOID "B" CONTROL CIRCUIT HIGH
(SHIFT SOLENOID VALVE S2)

ECM

ELECTRONIC CIRCUIT INSPECTION PROCEDURE

No down-shift (6th ->
5th)

Park/neutral
position switch
circuit*

DTC P0705: TRANSMISSION RANGE SENSOR
CIRCUIT MALFUNCTION (PRNDL INPUT)

Shift solenoid
valve S2 circuit*

DTC P0976, P0977: SHIFT SOLENOID "B" CONTROL
CIRCUIT LOW (SHIFT SOLENOID VALVE S2);
SHIFT SOLENOID "B" CONTROL CIRCUIT HIGH
(SHIFT SOLENOID VALVE S2)

ECM

ELECTRONIC CIRCUIT INSPECTION PROCEDURE

No down-shift (5th ->
4th)

Shift solenoid
valve S4 circuit*

DTC P0982, P0983: SHIFT SOLENOID "D" CONTROL
CIRCUIT LOW (SHIFT SOLENOID VALVE S4);
SHIFT SOLENOID "D" CONTROL CIRCUIT HIGH
(SHIFT SOLENOID VALVE S4)

Shift solenoid
valve SR circuit*

DTC P0985, P0986: SHIFT SOLENOID "E" CONTROL
CIRCUIT LOW (SHIFT SOLENOID VALVE SR);
SHIFT SOLENOID "E" CONTROL CIRCUIT HIGH
(SHIFT SOLENOID VALVE SR)

Shift solenoid
valve SL1
circuit*

DTC P0748: PRESSURE CONTROL SOLENOID "A"
ELECTRICAL (SHIFT SOLENOID VALVE SL1)

Shift solenoid
valve SL2
circuit*

DTC P0778: PRESSURE CONTROL SOLENOID "B"
ELECTRICAL (SHIFT SOLENOID VALVE SL2)

ECM

ELECTRONIC CIRCUIT INSPECTION PROCEDURE

No down-shift (4th ->
3rd)

Shift solenoid
valve S3 circuit*

DTC P0979, P0980: SHIFT SOLENOID "C" CONTROL
CIRCUIT LOW (SHIFT SOLENOID VALVE S3);
SHIFT SOLENOID "C" CONTROL CIRCUIT HIGH
(SHIFT SOLENOID VALVE S3)

ECM

ELECTRONIC CIRCUIT INSPECTION PROCEDURE

No down-shift (3rd ->
2nd)

Shift solenoid
valve S2 circuit*

DTC P0976, P0977: SHIFT SOLENOID "B" CONTROL
CIRCUIT LOW (SHIFT SOLENOID VALVE S2);
SHIFT SOLENOID "B" CONTROL CIRCUIT HIGH
(SHIFT SOLENOID VALVE S2)

ECM

ELECTRONIC CIRCUIT INSPECTION PROCEDURE

No down-shift (2nd ->
1st)

Shift solenoid
valve S1 circuit*

DTC P0973, P0974: SHIFT SOLENOID "A" CONTROL
CIRCUIT LOW (SHIFT SOLENOID VALVE S1);
SHIFT SOLENOID "A" CONTROL CIRCUIT HIGH
(SHIFT SOLENOID VALVE S1)

2009 Toyota Tundra

2009 TRANSMISSION AB60F Automatic Transaxle - Tundra