Toyota Tundra. Manual — part 2808

d. Turn the ignition switch to ON.

e. Turn the Techstream on.

f. Enter the following menus: Powertrain/Engine and ECT/Data List.

g. According to the display on the Techstream, read the Data List.

Engine and ECT:

DATA LIST TABLE

HINT:



SPD (SP2) is always 0 while driving:

Open or short in the sensor or circuit.



The SPD (SP2) value displayed on the Techstream is much lower than the actual vehicle
speed:

Sensor trouble, improper installation, or intermittent connection trouble in the circuit.

1. INSPECT SPEED SENSOR SP2 INSTALLATION

a. Check the speed sensor SP2 installation.

OK: The installation bolt is tightened properly and there is no clearance between the sensor
and transmission case.

Fig. 43: Identifying Clearance Between Sensor & Transmission Case

Tester

Display

Measurement Item/Range

Normal Condition

Diagnostic

Note

SPD

(SP2)

Output shaft speed/ Min.: 0 km/h (0
MPH) Max.: 255 km/h (158 MPH)

Vehicle stopped: 0 km/h (0 MPH)
(output shaft speed is equal to
vehicle speed)

-

2009 Toyota Tundra

2009 TRANSMISSION AB60F Automatic Transaxle - Tundra

Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.

NG: SECURELY INSTALL OR REPLACE SPEED SENSOR SP2

OK: Go to next step.

2. INSPECT SPEED SENSOR SP2

a. Disconnect the D66 speed sensor connector.

b. Measure the resistance according to the value (s) in the table below.

Standard resistance

TESTER CONNECTION SPECIFIED CONDITION TABLE

Fig. 44: Identifying D66 Speed Sensor Connector Terminals
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.

NG: REPLACE SPEED SENSOR SP2 (See REMOVAL )

OK: Go to next step.

3. CHECK HARNESS AND CONNECTOR (SPEED SENSOR SP2 - ECM)

a. Disconnect the D74 ECM connector.

b. Measure the resistance according to the value (s) in the table below.

Standard resistance

TESTER CONNECTION SPECIFIED CONDITION TABLE

Tester Connection Condition Specified Condition

1 - 2

20°C (68°F)

560 to 680 ohms

2009 Toyota Tundra

2009 TRANSMISSION AB60F Automatic Transaxle - Tundra

Result

B: REPLACE ECM See REMOVAL

C: REPLACE ECM See REMOVAL

Fig. 45: Identifying D74 ECM Connector Terminals
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.

NG: REPAIR OR REPLACE HARNESS OR CONNECTOR

DTC P0724: BRAKE SWITCH "B" CIRCUIT HIGH

DESCRIPTION

The purpose of this circuit is to prevent the engine from stalling while driving in the lock-up condition when the
brakes are suddenly applied.

When the brake pedal is depressed, this switch sends a signal to the ECM. Then the ECM cancels the operation
of the lock-up clutch while braking is in progress.

DTC DETECTION CONDITION TABLE

Tester Connection

Condition Specified Condition

D74-101 (SP2+) - D74-100 (SP2-) 20°C (68°F)

560 to 680 ohms

D74-101 (SP2+) - Body ground

Always

10 kohms or higher

D74-100 (SP2-) - Body ground

Always

10 kohms or higher

Result

Proceed To

NG

A

OK (for 3UR-FE)

B

OK (for 3UR-FBE)

C

2009 Toyota Tundra

2009 TRANSMISSION AB60F Automatic Transaxle - Tundra

MONITOR DESCRIPTION

This DTC indicates that the stop light switch remains ON. When the stop light switch remains ON during "stop
and go" driving, the ECM interprets this as a fault in the stop light switch and the MIL comes on and the ECM
stores the DTC. The vehicle must stop (less than 3 km/h (2 MPH)) and go (30 km/h (19 MPH) or more) 5 times
for 2 driving cycles in order to detect a malfunction.

MONITOR STRATEGY

MONITOR STRATEGY TABLE

TYPICAL ENABLING CONDITIONS

The stop light switch remains ON during GO and STOP 5 times.

GO and STOP is defined as follows

TYPICAL ENABLING CONDITIONS TABLE

TYPICAL MALFUNCTION THRESHOLDS

TYPICAL MALFUNCTION THRESHOLDS TABLE

DTC

Code

DTC Detection Condition

Trouble Area

P0724

The stop light switch remains ON even when the vehicle is driven in a
STOP (less than 3 km/h (2 MPH)) and GO (30 km/h (19 MPH) or
more) pattern 5 times. (2-trip detection logic)



Short in stop light
switch signal
circuit



Stop light switch



ECM

Related DTCs

P0724: Stop light switch/Range check/Rationality

Required sensors/Components

Stop light switch, Vehicle speed sensor

Frequency of operation

Continuous

Duration

GO and STOP 5 times

MIL operation

2 driving cycles

Sequence of operation

None

The monitor will run whenever the following DTCs
are not stored

None

Battery voltage

8 V or higher

Ignition switch

ON

Starter

OFF

GO: (Vehicle speed is 30 km/h (18.65 MPH) or
more)

Once

STOP: (Vehicle speed is less than 3 km/h (1.86
MPH))

Once

2009 Toyota Tundra

2009 TRANSMISSION AB60F Automatic Transaxle - Tundra