Toyota Tundra. Manual — part 2812

Condition (B)

TYPICAL ENABLING CONDITIONS TABLE

TYPICAL MALFUNCTION THRESHOLDS

When either condition below is met: Condition (A) or (B)

Condition (A)

TYPICAL MALFUNCTION THRESHOLDS TABLE

Condition (B)

TYPICAL MALFUNCTION THRESHOLDS TABLE

COMPONENT OPERATING RANGE

COMPONENT OPERATING RANGE TABLE

WIRING DIAGRAM

Fig. 52: Identifying Pressure Control Solenoid - Wiring Diagram

Solenoid current cut status

Not cut

Battery voltage

11 V or higher

Target current

0.1 A or higher

Battery voltage

8 V or higher

Solenoid status from Hybrid IC

Failure

Hybrid IC status

Failure

Output signal duty

Less than 100%

2009 Toyota Tundra

2009 TRANSMISSION AB60F Automatic Transaxle - Tundra

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

INSPECTION PROCEDURE

HINT:

The shift solenoid valve SL1 turns ON/OFF normally when the shift lever is on D:

SHIFT SOLENOID VALVE SL1 REFERENCE TABLE

1. INSPECT NO. 1 TRANSMISSION WIRE (SHIFT SOLENOID VALVE SL1)

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

Fig. 53: 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.

ECM gear shift command

1st

2nd

3rd

4th

5th

6th

Shift solenoid valve SL1

OFF

OFF

OFF

OFF

ON

ON

Tester Connection

Condition Specified Condition

11 (SL1+) - 3 (SL1-)

20°C (68°F)

5.0 to 5.6 ohms

11 (SL1+) - Body ground

Always

10 kohms or higher

3 (SL1-) - Body ground

Always

10 kohms or higher

2009 Toyota Tundra

2009 TRANSMISSION AB60F Automatic Transaxle - Tundra

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

Fig. 54: Identifying D74 ECM Connector Terminals
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.

NG: REPAIR OR REPLACE HARNESS OR CONNECTOR

OK: REPLACE ECM (See ECM )

3. INSPECT SHIFT SOLENOID VALVE SL1

a. Remove shift solenoid valve SL1.

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 1 and the negative (-) lead to

Tester Connection

Condition Specified Condition

D74-14 (SL1+) - D74-15 (SL1-) 20°C (68°F)

5.0 to 5.6 ohms

D74-14 (SL1+) - Body ground

Always

10 kohms or higher

D74-15 (SL1-) - Body ground

Always

10 kohms or higher

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

terminal 2 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. 55: Identifying Shift Solenoid Valve SL1
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.

NG: REPLACE SHIFT SOLENOID VALVE SL1 (See DISASSEMBLY )

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

DTC P0751: SHIFT SOLENOID "A" PERFORMANCE (SHIFT SOLENOID VALVE S1)

DESCRIPTION

The ECM uses signals from the output shaft speed sensor and input speed sensor to detect the actual gear
position (1st, 2nd, 3rd, 4th, 5th or 6th gear).

Then the ECM compares the actual gear with the shift schedule in the ECM memory to detect mechanical
problems of the shift solenoid valves, valve body or automatic transmission (clutch, brake, gear, etc.).

2009 Toyota Tundra

2009 TRANSMISSION AB60F Automatic Transaxle - Tundra