Toyota Tundra. Manual — part 1562

Reference: Inspection using an oscilloscope.

Fig. 146: Identifying Waveform
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.

Standard

WAVEFORM REFERENCE

HINT:

While cranking or idling the engine, check the waveform between terminals IGT (1 to 8) and E1, and IGF1 or
IGF2 and E1 of the ECM connector.

MONITOR DESCRIPTION



ECM

Tester Connection

Tool Setting

Condition

Specified Condition

D74-40 (IGT1) - D74-81 (E1)

2 V/DIV., 20 msec./DIV. Idling

The correct waveform is as shown

D74-33 (IGT2) - D74-81 (E1)

2 V/DIV., 20 msec./DIV. Idling

The correct waveform is as shown

D74-37 (IGT3) - D74-81 (E1)

2 V/DIV., 20 msec./DIV. Idling

The correct waveform is as shown

D74-34 (IGT4) - D74-81 (E1)

2 V/DIV., 20 msec./DIV. Idling

The correct waveform is as shown

D74-35 (IGT5) - D74-81 (E1)

2 V/DIV., 20 msec./DIV. Idling

The correct waveform is as shown

D74-36 (IGT6) - D74-81 (E1)

2 V/DIV., 20 msec./DIV. Idling

The correct waveform is as shown

D74-38 (IGT7) - D74-81 (E1)

2 V/DIV., 20 msec./DIV. Idling

The correct waveform Is as shown

D74-39 (IGT8) - D74-81 (E1)

2 V/DIV., 20 msec./DIV. Idling

The correct waveform is as shown

D74-104 (IGF1) - D74-81 (E1) 2 V/DIV., 20 msec./DIV. Idling

The correct waveform is as shown

D74-105 (IGF2) - D74-81 (E1) 2 V/DIV., 20 msec./DIV. Idling

The correct waveform is as shown

2009 Toyota Tundra

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

Fig. 147: Ignition Coil With Igniter Communication Diagram
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.

If the ECM does not receive any IGF signals despite transmitting the IGT signal, it interprets this as a fault in
the igniter and stores a DTC.

If the malfunction is not repaired successfully, a DTC is stored 1 second after the engine is next started.

MONITOR STRATEGY

MONITOR STRATEGY

TYPICAL ENABLING CONDITIONS

TYPICAL ENABLING CONDITIONS

Related DTCs

P0351: Igniter (cylinder 1) malfunction
P0352: Igniter (cylinder 2) malfunction
P0353: Igniter (cylinder 3) malfunction
P0354: Igniter (cylinder 4) malfunction
P0355: Igniter (cylinder 5) malfunction
P0356: Igniter (cylinder 6) malfunction
P0357: Igniter (cylinder 7) malfunction
P0358: Igniter (cylinder 8) malfunction

Required Sensors/Components (Main)

Igniter

Required Sensors/Components (Related)

Crankshaft position sensor

Frequency of Operation

Continuous

Duration

About 1 second

MIL Operation

Immediate

Sequence of Operation

None

Monitor runs whenever following DTCs not present

None

Either of following conditions A or B met

-

A. Engine speed

1500 RPM or less

B. Starter

OFF

Either of following conditions C or D met

-

C. Both of following conditions (a) and (b) met

-

2009 Toyota Tundra

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

TYPICAL MALFUNCTION THRESHOLDS

TYPICAL MALFUNCTION THRESHOLDS

COMPONENT OPERATING RANGE

COMPONENT OPERATING RANGE

WIRING DIAGRAM

Fig. 148: Ignition Coil - Wiring Diagram (1 Of 2)
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.

Fig. 149: Ignition Coil - Wiring Diagram (2 Of 2)
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.

INSPECTION PROCEDURE

(a) Engine speed

500 RPM or less

(b) Battery voltage

6 V or more

D. All of following conditions (a), (b) and (c) met

-

(a) Engine speed

More than 500 RPM

(b) Battery voltage

10 V or more

(c) Number of sparks after CPU reset

5 sparks or more

IGF signal ECM does not receive any IGF signal despite ECM sending IGT signal to igniter

IGF signal

Igniter transmits IGF signal when it receives IGT signal from ECM

2009 Toyota Tundra

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

HINT:

Read freeze frame data using the Techstream. Freeze frame data records the engine condition when
malfunctions are detected. When troubleshooting, freeze frame data can help determine if the vehicle was
moving or stationary, if the engine was warmed up or not, if the air-fuel ratio was lean or rich, and other data
from the time the malfunction occurred.

1. INSPECT IGNITION COIL ASSEMBLY (POWER SOURCE)

a. Disconnect the D10, D12, D14, D16, D19, D21, D23 or D25 ignition coil with igniter connector.

Fig. 150: Identifying Terminals Of D10, D12, D14, D16, D19, D21, D23 Or D25 Ignition Coil
With Igniter Connector
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.

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

Standard resistance

RESISTANCE SPECIFIED CONDITION

c. Turn the ignition switch to ON.

d. Measure the voltage according to the value(s) in the table below.

Standard voltage

VOLTAGE SPECIFIED CONDITION

Tester Connection

Condition Specified Condition

D10-4 (GND) - Body ground Always

Below 1 ohms

D25-4 (GND) - Body ground Always

Below 1 ohms

D12-4 (GND) - Body ground Always

Below 1 ohms

D23-4 (GND) - Body ground Always

Below 1 ohms

D14-4 (GND) - Body ground Always

Below 1 ohms

D21-4 (GND) - Body ground Always

Below 1 ohms

D16-4 (GND) - Body ground Always

Below 1 ohms

D19-4 (GND) - Body ground Always

Below 1 ohms

2009 Toyota Tundra

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