Toyota Tundra. Manual — part 1478

Fig. 8: SFI System Diagram (2 Of 6)
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.

Fig. 9: SFI System Diagram (3 Of 6)
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.

Fig. 10: SFI System Diagram (4 Of 6)
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.

2009 Toyota Tundra

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

Fig. 11: SFI System Diagram (5 Of 6)
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.

Fig. 12: SFI System Diagram (6 Of 6)
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.

HOW TO PROCEED WITH TROUBLESHOOTING

HINT:

*: Use the Techstream.

1. VEHICLE BROUGHT TO WORKSHOP

2. CUSTOMER PROBLEM ANALYSIS

3. CONNECT TECHSTREAM TO DLC3*

HINT:

If the display indicates a communication fault in the Techstream, inspect the DLC3.

4. CHECK DTC AND FREEZE FRAME DATA*

HINT:

Record or print DTCs and freeze frame data, if necessary.

5. CLEAR DTC AND FREEZE FRAME DATA*

2009 Toyota Tundra

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

6. CONDUCT VISUAL INSPECTION

7. SET CHECK MODE DIAGNOSIS*

8. CONFIRM PROBLEM SYMPTOMS

HINT:

If the engine does not start, first perform the "CHECK DTC" procedures and "CONDUCT BASIC
INSPECTION" procedures below.

Result

RESULT REFERENCE

B: GO TO STEP 10

A: Go to next step.

9. SIMULATE SYMPTOMS

10. CHECK DTC*

Result

RESULT REFERENCE

B: GO TO STEP 12

A: Go to next step.

11. REFER TO DTC CHART

NEXT: GO TO STEP 14

12. CONDUCT BASIC INSPECTION

Result

RESULT REFERENCE

Result

Proceed to

Malfunction does not occur

A

Malfunction occurs

B

Result

Proceed to

Malfunction code

A

No code

B

Result

Proceed to

2009 Toyota Tundra

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

B: GO TO STEP 17

A: Go to next step.

13. REFER TO PROBLEM SYMPTOMS TABLE

Result

RESULT REFERENCE

B: GO TO STEP 17

A: Go to next step.

14. CHECK ECM POWER SOURCE CIRCUIT

15. CONDUCT CIRCUIT INSPECTION

Result

RESULT REFERENCE

B: GO TO STEP 18

A: Go to next step.

16. CHECK FOR INTERMITTENT PROBLEMS

NEXT: GO TO STEP 18

17. CONDUCT PARTS INSPECTION

18. IDENTIFY PROBLEM

19. ADJUST AND/OR REPAIR

20. CONDUCT CONFIRMATION TEST

NEXT: END

Malfunctioning parts not confirmed

A

Malfunctioning parts confirmed

B

Result

Proceed to

Malfunctioning circuit confirmed

A

Malfunctioning parts confirmed

B

Result

Proceed to

Malfunction not confirmed

A

Malfunction confirmed

B

2009 Toyota Tundra

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