Toyota Tundra. Manual — part 2790

ECM

ELECTRONIC CIRCUIT INSPECTION PROCEDURE

No lock-up or no lock-
up off

Shift solenoid
valve SLU
circuit*

DTC P2759: TORQUE CONVERTER CLUTCH
PRESSURE CONTROL SOLENOID CONTROL
CIRCUIT ELECTRICAL (SHIFT SOLENOID VALVE
SLU)

Stop light switch
circuit*

DTC P0724: BRAKE SWITCH "B" CIRCUIT HIGH

ECM

ELECTRONIC CIRCUIT INSPECTION PROCEDURE

No lock-up

No. 1 ATF
temperature
sensor circuit*

DTC P0710, P0712, P0713: TRANSMISSION FLUID
TEMPERATURE SENSOR "A" CIRCUIT;
TRANSMISSION FLUID TEMPERATURE SENSOR
"A" CIRCUIT LOW INPUT; TRANSMISSION FLUID
TEMPERATURE SENSOR "A" CIRCUIT HIGH
INPUT

Shift solenoid
valve SLU
circuit*

DTC P2759: TORQUE CONVERTER CLUTCH
PRESSURE CONTROL SOLENOID CONTROL
CIRCUIT ELECTRICAL (SHIFT SOLENOID VALVE
SLU)

Engine coolant
temperature
sensor circuit*

DIAGNOSTIC TROUBLE CODE TABLE

Stop light switch
circuit*

DTC P0724: BRAKE SWITCH "B" CIRCUIT HIGH

Speed sensor NT
circuit*

DTC P0717: TURBINE SPEED SENSOR CIRCUIT NO
SIGNAL

ECM

ELECTRONIC CIRCUIT INSPECTION PROCEDURE

No lock-up off

Shift solenoid
valve SLU
circuit*

DTC P2759: TORQUE CONVERTER CLUTCH
PRESSURE CONTROL SOLENOID CONTROL
CIRCUIT ELECTRICAL (SHIFT SOLENOID VALVE
SLU)

ECM

ELECTRONIC CIRCUIT INSPECTION PROCEDURE

Shift point too high or
too low

Shift solenoid
valve SLT
circuit*

DTC P2716: PRESSURE CONTROL SOLENOID "D"
ELECTRICAL (SHIFT SOLENOID VALVE SLT)

Speed sensor NT
circuit*

DTC P0717: TURBINE SPEED SENSOR CIRCUIT NO
SIGNAL

Speed sensor SP2
circuit*

DTC P0722: OUTPUT SPEED SENSOR CIRCUIT NO
SIGNAL

Throttle position
sensor circuit*

DIAGNOSTIC TROUBLE CODE TABLE

Tow/haul pattern
select switch
circuit

PATTERN SELECT SWITCH CIRCUIT

No. 1 ATF

DTC P0710, P0712, P0713: TRANSMISSION FLUID
TEMPERATURE SENSOR "A" CIRCUIT;

2009 Toyota Tundra

2009 TRANSMISSION AB60F Automatic Transaxle - Tundra

temperature
sensor circuit*

TRANSMISSION FLUID TEMPERATURE SENSOR
"A" CIRCUIT LOW INPUT; TRANSMISSION FLUID
TEMPERATURE SENSOR "A" CIRCUIT HIGH
INPUT

ECM

ELECTRONIC CIRCUIT INSPECTION PROCEDURE

Up-shift to 4th from 3rd
while engine is cold

Engine coolant
temperature
sensor circuit*

DIAGNOSTIC TROUBLE CODE TABLE

ECM

ELECTRONIC CIRCUIT INSPECTION PROCEDURE

Up-shift to 5th from 4th
while engine is cold

Engine coolant
temperature
sensor circuit*

DIAGNOSTIC TROUBLE CODE TABLE

ECM

ELECTRONIC CIRCUIT INSPECTION PROCEDURE

No gear change by
shifting into "+" or "-"
while shift lever on S

Transmission
control switch
circuit

TRANSMISSION CONTROL SWITCH CIRCUIT

ECM

ELECTRONIC CIRCUIT INSPECTION PROCEDURE

Harsh engagement (N -
> D)

Shift solenoid
valve SLT
circuit*

DTC P2716: PRESSURE CONTROL SOLENOID "D"
ELECTRICAL (SHIFT SOLENOID VALVE SLT)

Speed sensor NT
circuit*

DTC P0717: TURBINE SPEED SENSOR CIRCUIT NO
SIGNAL

ECM

ELECTRONIC CIRCUIT INSPECTION PROCEDURE

Harsh engagement
(lock-up)

Speed sensor NT
circuit*

DTC P0717: TURBINE SPEED SENSOR CIRCUIT NO
SIGNAL

Speed sensor SP2
circuit*

DTC P0722: OUTPUT SPEED SENSOR CIRCUIT NO
SIGNAL

Shift solenoid
valve SLU
circuit*

DTC P2759: TORQUE CONVERTER CLUTCH
PRESSURE CONTROL SOLENOID CONTROL
CIRCUIT ELECTRICAL (SHIFT SOLENOID VALVE
SLU)

ECM

ELECTRONIC CIRCUIT INSPECTION PROCEDURE

Harsh engagement (any
gear position)

Throttle position
sensor circuit*

DIAGNOSTIC TROUBLE CODE TABLE

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)

Shift solenoid
valve SLU
circuit*

DTC P2759: TORQUE CONVERTER CLUTCH
PRESSURE CONTROL SOLENOID CONTROL
CIRCUIT ELECTRICAL (SHIFT SOLENOID VALVE
SLU)

Shift solenoid

2009 Toyota Tundra

2009 TRANSMISSION AB60F Automatic Transaxle - Tundra

valve SLT
circuit*

DTC P2716: PRESSURE CONTROL SOLENOID "D"
ELECTRICAL (SHIFT SOLENOID VALVE SLT)

Speed sensor NT
circuit*

DTC P0717: TURBINE SPEED SENSOR CIRCUIT NO
SIGNAL

ECM

ELECTRONIC CIRCUIT INSPECTION PROCEDURE

Poor acceleration

No. 2 ATF
temperature
sensor circuit*

DTC P2740, P2742, P2743: TRANSMISSION FLUID
TEMPERATURE SENSOR "B" CIRCUIT;
TRANSMISSION FLUID TEMPERATURE SENSOR
"B" CIRCUIT LOW INPUT; TRANSMISSION FLUID
TEMPERATURE SENSOR "B" CIRCUIT HIGH
INPUT

Shift solenoid
valve SLT
circuit*

DTC P2716: PRESSURE CONTROL SOLENOID "D"
ELECTRICAL (SHIFT SOLENOID VALVE SLT)

ECM

ELECTRONIC CIRCUIT INSPECTION PROCEDURE

No engine brake

ECM

ELECTRONIC CIRCUIT INSPECTION PROCEDURE

No kick-down

ECM

ELECTRONIC CIRCUIT INSPECTION PROCEDURE

Engine stalls when
starting off or stopping

Shift solenoid
valve SLU
circuit*

DTC P2759: TORQUE CONVERTER CLUTCH
PRESSURE CONTROL SOLENOID CONTROL
CIRCUIT ELECTRICAL (SHIFT SOLENOID VALVE
SLU)

ECM

ELECTRONIC CIRCUIT INSPECTION PROCEDURE

ATF temperature
warning light remains
on, lock-up at 3rd gear
and/or shift point too
high

No. 2 ATF
temperature
sensor circuit*

DTC P2740, P2742, P2743: TRANSMISSION FLUID
TEMPERATURE SENSOR "B" CIRCUIT;
TRANSMISSION FLUID TEMPERATURE SENSOR
"B" CIRCUIT LOW INPUT; TRANSMISSION FLUID
TEMPERATURE SENSOR "B" CIRCUIT HIGH
INPUT

Engine coolant
temperature
sensor circuit*

DIAGNOSTIC TROUBLE CODE TABLE

ECM

ELECTRONIC CIRCUIT INSPECTION PROCEDURE

Malfunction in shifting

Park/neutral
position switch
circuit*

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

Transmission
control switch
circuit

TRANSMISSION CONTROL SWITCH CIRCUIT

ECM

ELECTRONIC CIRCUIT INSPECTION PROCEDURE

Harsh engagement (1st -
> 2nd -> 3rd -> 4th ->
5th)

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)

Slip or shudder (5th -> Shift solenoid

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

2009 Toyota Tundra

2009 TRANSMISSION AB60F Automatic Transaxle - Tundra

2. CHAPTER 2: ON-VEHICLE REPAIR AND OFF-VEHICLE REPAIR

PROBLEM SYMPTOMS TABLE

6th -> and 6th -> 5th)

valve SR circuit* SHIFT SOLENOID "E" CONTROL CIRCUIT HIGH

(SHIFT SOLENOID VALVE SR)

Symptom

Suspected Area

Reference

Vehicle does not move when shift
lever is in any forward position or
reverse position

Transmission control cable
(for Column Shift Type)

TRANSMISSION CONTROL
CABLE (FOR COLUMN SHIFT
TYPE)

Transmission control cable
(for Floor Shift Type)

TRANSMISSION CONTROL
CABLE (FOR FLOOR SHIFT
TYPE)

Manual valve

AUTOMATIC TRANSMISSION
UNIT

Parking lock pawl

AUTOMATIC TRANSMISSION
UNIT

Rear planetary gear unit

AUTOMATIC TRANSMISSION
UNIT

Torque converter clutch

TORQUE CONVERTER CLUTCH
AND DRIVE PLATE

Vehicle does not move with shift
lever on R

Valve body assembly

VALVE BODY ASSEMBLY

B4 brake

AUTOMATIC TRANSMISSION
UNIT

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

Valve body assembly

VALVE BODY ASSEMBLY

B3 brake

AUTOMATIC TRANSMISSION
UNIT

F1 one-way clutch

AUTOMATIC TRANSMISSION
UNIT

F2 one-way clutch

AUTOMATIC TRANSMISSION
UNIT

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

Valve body assembly

VALVE BODY ASSEMBLY

C3 clutch

AUTOMATIC TRANSMISSION
UNIT

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

Valve body assembly

VALVE BODY ASSEMBLY

C2 clutch

AUTOMATIC TRANSMISSION
UNIT

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

Valve body assembly

VALVE BODY ASSEMBLY

B1 brake

AUTOMATIC TRANSMISSION
UNIT

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

Valve body assembly

VALVE BODY ASSEMBLY

B2 brake

AUTOMATIC TRANSMISSION
UNIT

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

Valve body assembly

VALVE BODY ASSEMBLY

2009 Toyota Tundra

2009 TRANSMISSION AB60F Automatic Transaxle - Tundra