Toyota Tundra. Manual — part 2842

Fig. 115: Identifying Shift Solenoid Valve SLU - Wiring Diagram
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.

INSPECTION PROCEDURE

1. INSPECT NO. 1 TRANSMISSION WIRE (SHIFT SOLENOID VALVE SLU)

a. Disconnect the D63 No. 1 transmission wire 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

12 (SLU+) - 4 (SLU-)

20°C (68°F)

5.0 to 5.6 ohms

12 (SLU+) - Body ground

Always

10 kohms or higher

4 (SLU-) - Body ground

Always

10 kohms or higher

2009 Toyota Tundra

2009 TRANSMISSION AB60F Automatic Transaxle - Tundra

Fig. 116: Identifying D63 No. 1 Transmission Wire Connector Terminals
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.

NG: Go to step 3

OK: Go to next step.

2. CHECK HARNESS AND CONNECTOR (NO. 1 TRANSMISSION WIRE - 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

Result

Fig. 117: Identifying D74 ECM Connector Terminals
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.

NG: REPAIR OR REPLACE HARNESS OR CONNECTOR

Tester Connection

Condition Specified Condition

D74-10 (SLU+) - D74-11 (SLU-) 20°C (68°F)

5.0 to 5.6 ohms

D74-10 (SLU+) - Body ground

Always

10 kohms or higher

D74-11 (SLU-) - 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

B: OK (for 3UR-FE) (See REMOVAL )

C: OK (for 3UR-FBE) (See REMOVAL )

3. INSPECT SHIFT SOLENOID VALVE SLU

a. Remove shift solenoid valve SLU.

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

Standard resistance

TESTER CONNECTION SPECIFIED CONDITION TABLE

c. Connect the battery's positive (+) lead with a 21 W bulb to terminal 2 and the negative (-) lead to

terminal 1 of the solenoid valve connector. Then check that the valve moves and makes an
operating noise.

OK: Valve moves and makes an operating noise.

Fig. 118: Identifying Shift Solenoid Valve SLU

Tester Connection Condition Specified Condition

1 - 2

20°C (68°F)

5.0 to 5.6 ohms

2009 Toyota Tundra

2009 TRANSMISSION AB60F Automatic Transaxle - Tundra

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

NG: REPLACE SHIFT SOLENOID VALVE SLU (See DISASSEMBLY )

OK: REPAIR OR REPLACE NO. 1 TRANSMISSION WIRE (See REMOVAL )

DTC P2772: FOUR WHEEL DRIVE (4WD) LOW SWITCH CIRCUIT RANGE/PERFORMANCE

DESCRIPTION

The ECM detects the signal from the transfer 4L position switch.

This DTC indicates that the transfer 4L position switch remains on.

DTC DETECTION CONDITION TABLE

MONITOR DESCRIPTION

The ECM monitors the transfer-case 4L position switch to determine when the transfer-case 4L gear is engaged.
If the transfer-case 4L gears remain engaged under the following conditions, the ECM will conclude that there
is a malfunction of the 4L position switch, illuminate the MIL and store the DTC:



The 4L switch indicates that the 4L transfer-case gears are engaged.



The transfer-case shifter is in the "4H" position.



The transfer-case output shaft RPM is between 1000 and 3000 RPM.



The specified time period has elapsed.

MONITOR STRATEGY

MONITOR STRATEGY TABLE

DTC

Code

DTC Detection Condition

Trouble Area

P2772

Transfer 4L position switch remains ON while vehicle is running
under following conditions for 1.8 sec. or more (1-trip detection
logic)

a. Output shaft speed between 1000 and 3000 RPM

b. Transfer position switch is in 4H



Short in transfer 4L
position switch circuit



4WD control ECU



ECM

Related DTCs

P2772: Transfer 4L position switch/ON malfunction

Required sensors/Components

Transfer 4L position switch

Frequency of operation

Continuous

Duration

ON malfunction (A): 1.8 sec.
ON malfunction (B): 0.5 sec.

MIL operation

1 driving cycle

Sequence of operation

None

2009 Toyota Tundra

2009 TRANSMISSION AB60F Automatic Transaxle - Tundra