Toyota Tundra. Manual — part 1639

Fig. 298: VC - Wiring Diagram (1 Of 3)
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.

Fig. 299: VC - Wiring Diagram (2 Of 3)
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.

Fig. 300: VC - Wiring Diagram (3 Of 3)
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.

INSPECTION PROCEDURE

1. CHECK MIL

2009 Toyota Tundra

2009 ENGINE PERFORMANCE Engine Control System (3UR-FBE) - Tundra

Saturday, June 19, 2010 7:34:48 PM

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© 2006 Mitchell Repair Information Company, LLC.

a. Check that the Malfunction Indicator Lamp (MIL) lights up when turning the ignition switch to

ON.

OK:

MIL lights up

NG: Go to step 2

OK: SYSTEM OK

2. CHECK COMMUNICATION BETWEEN TECHSTREAM AND ECM

a. Connect the Techstream to the DLC3.

b. Turn the ignition switch to ON and Techstream ON.

c. Check the communication between the Techstream and ECM.

Result

COMMUNICATION RESULT

A: GO TO MIL CIRCUIT

B: Go to Next Step

3. CHECK MIL (THROTTLE POSITION SENSOR)

a. Disconnect the D9 throttle body connector.

b. Turn the ignition switch to ON.

c. Check the MIL.

Result

MIL ILLUMINATION RESULT

A: REPLACE THROTTLE BODY ASSEMBLY (See REMOVAL )

B: Go to Next Step

4. CHECK MIL (ACCELERATOR PEDAL POSITION SENSOR)

Result

Proceed to

Communication is possible

A

Communication is not possible

B

Result

Proceed to

MIL illuminates

A

MIL does not illuminate

B

2009 Toyota Tundra

2009 ENGINE PERFORMANCE Engine Control System (3UR-FBE) - Tundra

Saturday, June 19, 2010 7:34:48 PM

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© 2006 Mitchell Repair Information Company, LLC.

a. Disconnect the A14 accelerator pedal position sensor connector.

b. Turn the ignition switch to ON.

c. Check the MIL

Result

MIL ILLUMINATION RESULT

A: REPLACE ACCELERATOR PEDAL POSITION SENSOR (See REMOVAL )

B: Go to Next Step

5. CHECK MIL (CANISTER PUMP MODULE)

a. Disconnect the R1 canister pump module connector.

Fig. 301: Identifying R1 Canister Pump Module Connector
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.

b. Turn the ignition switch to ON.

c. Check the MIL.

Result

MIL ILLUMINATION RESULT

A: REPLACE CHARCOAL CANISTER ASSEMBLY (See REMOVAL )

B: Go to Next Step

Result

Proceed to

MIL illuminates

A

MIL does not illuminate

B

Result

Proceed to

MIL illuminates

A

MIL does not illuminate

B

2009 Toyota Tundra

2009 ENGINE PERFORMANCE Engine Control System (3UR-FBE) - Tundra

Saturday, June 19, 2010 7:34:48 PM

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© 2006 Mitchell Repair Information Company, LLC.

6. CHECK MIL (AIR SWITCHING VALVE for Bank 1)

a. Disconnect the D58 air switching valve connector.

b. Turn the ignition switch to ON.

c. Check the MIL

Result

MIL ILLUMINATION RESULT

A: REPLACE AIR SWITCHING VALVE (See REMOVAL )

B: Go to Next Step

7. CHECK MIL (AIR SWITCHING VALVE for Bank 2)

a. Disconnect the D59 air switching valve connector.

b. Turn the ignition switch to ON.

c. Check the MIL.

Result

MIL ILLUMINATION RESULT

A: REPLACE AIR SWITCHING VALVE (See REMOVAL )

B: Go to Next Step

8. CHECK MIL (POWER STEERING OIL PRESSURE SENSOR)

a. Disconnect the D46 power steering oil pressure sensor connector.

b. Turn the ignition switch to ON.

c. Check the MIL

Result

MIL ILLUMINATION RESULT

Result

Proceed to

MIL illuminates

A

MIL does not illuminate

B

Result

Proceed to

MIL illuminates

A

MIL does not illuminate

B

Result

Proceed to

MIL illuminates

A

MIL does not illuminate

B

2009 Toyota Tundra

2009 ENGINE PERFORMANCE Engine Control System (3UR-FBE) - Tundra

Saturday, June 19, 2010 7:34:48 PM

Page 652

© 2006 Mitchell Repair Information Company, LLC.