Toyota FJ Cruiser (GSJ 10, 15 series). Manual — part 61

1GR-FE ENGINE CONTROL SYSTEM – SFI SYSTEM

ES–199

ES

VVT Sensor Range Check:

Camshaft Position/Crankshaft Position Misalignment:

VVT Sensor Range Check (Fluctuating, Low voltage, High voltage):

VVT Sensor Range Check (While starting engine):

VVT Sensor Range Check (After starting engine):

VVT Sensor Range Check (Fluctuating, Low voltage, High voltage):

TYPICAL MALFUNCTION THRESHOLDS

VVT Sensor Range Check:

Camshaft Position/Crankshaft Position Misalignment:

VVT Sensor Range Check (Fluctuating):

VVT Sensor Range Check (Low voltage):

VVT Sensor Range Check (High voltage):

VVT Sensor Range Check (While starting engine):

VVT Sensor Range Check (After starting engine):

VVT Sensor Range Check (Fluctuating):

VVT Sensor Range Check (Low voltage):

Starter

ON

Minimum battery voltage while starter ON

Less than 11 V

Engine RPM

600 rpm or more

Starter

OFF

Starter

OFF

Ignition switch ON and time after ignition switch changed from OFF to
ON

2 seconds or more

Starter

ON

Battery voltage while starter ON once at least

Less than 11 V

Engine RPM

600 rpm or more

Starter

OFF

Battery voltage

8 V or more

Ignition switch

ON

Starter

OFF

Ignition switch ON and time after ignition switch changed from OFF to
ON

2 seconds or more

Battery voltage

8 V or more

VVT sensor signal

No signal

Camshaft position and crankshaft position phases

Mis-aligned

VVT sensor voltage

Less than 0.3 V, or more than 4.7 V

VVT sensor voltage

Less than 0.3 V

VVT sensor voltage

More than 4.7 V

VVT sensor signal

No signal

VVT sensor signal

No signal

VVT sensor voltage

Less than 0.3 V, or more than 4.7 V

VVT sensor voltage

Less than 0.3 V

ES–200

1GR-FE ENGINE CONTROL SYSTEM – SFI SYSTEM

ES

VVT Sensor Range Check (High voltage):

COMPONENT OPERATING RANGE

WIRING DIAGRAM

INSPECTION PROCEDURE

HINT:
Read freeze frame data using an intelligent tester. Freeze frame data records the engine conditions when
a malfunction is detected. When troubleshooting, freeze frame data can help determine if the vehicle was
running or stopped, 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.

VVT sensor voltage

More than 4.7 V

VVT sensor voltage

0.3 to 4.7 V

VVT Sensor RH (Bank 1)

VVT Sensor LH (Bank 2)

VVR+

VVR-

VC

VC

VVL+

VVL-

VV1+

VV1-

VC

VV2+

VV2-

ECM

B15

B27

3

2

1

1

3

2

19
B3
29
B3
23
B1

18
B3
28
B3

A133477E01

1GR-FE ENGINE CONTROL SYSTEM – SFI SYSTEM

ES–201

ES

(a) Inspect the ECM using an oscilloscope.

(1) While the engine is idling, check the waveform

between the terminals of the ECM connector.
Standard

OK

NG

(a) Disconnect the B15 or B27 VVT sensor connector.
(b) Measure the voltage between the terminals of the VVT

sensor.
Standard Voltage

(c) Reconnect the VVT sensor connector.

NG

OK

1

CHECK ECM TERMINAL VOLTAGE

B3

ECM Connector

NE+

NE-

VV1+

VV1- VV2-

VV2+

NE

VV1

VV2

GND
GND

GND

VV1, VV2 and NE Signal Waveforms

A116157E02

Items

Contents

Terminals

NE+ - NE-

VV1+ - VV1-
VV2+ - VV2-

Equipment Settings

5 V/Division, 20 ms/Division

Conditions

Cranking or idling

Tester Connections

Specified Conditions

VV1+ (B3-19) - VV1- (B3-29)

Correct waveform as shown in

illustration

VV2+ (B3-18) - VV2- (B3-28)

NE+ (B3-21) - NE- (B3-20)

CHECK FOR INTERMITTENT PROBLEMS

2

CHECK VVT SENSOR (SENSOR POWER SOURCE)

VVT Sensor

Wire Harness Side:

B15 Bank 1

B27 Bank 2

VC

G038815E03

Tester Connection

Specified Condition

VC (3) - Body ground

4.5 to 5.5 V

REPAIR OR REPLACE POWER SOURCE
CIRCUIT

ES–202

1GR-FE ENGINE CONTROL SYSTEM – SFI SYSTEM

ES

(a) Disconnect the B15 or B27 VVT sensor connector.
(b) Disconnect the B3 ECM connector.
(c) Check the resistance.

Standard Resistance (Check for open)

Standard Resistance (Check for short)

(d) Reconnect the VVT sensor connector.
(e) Reconnect the ECM connector.

NG

OK

(a) Check the VVT sensor installation.

OK:

Sensor is installed correctly.

NG

OK

NG

OK

3

CHECK HARNESS AND CONNECTOR (VVT SENSOR - ECM)

B15

VVT Sensor Connector

Wire Harness Side:

ECM Connector

Bank 1

B27 Bank 2

B3

VV2+

VV2-

VV1+

VV1-

VVR+ or
VVL+

VVR- or
VVL-

Front View

A116306E02

Tester Connections

Specified Conditions

VVR+ (B15-1) - VV1+ (B3-19)

Below 1

Ω

VVL+ (B27-1) - VV2+ (B3-18)

VVR- (B15-2) - VV1- (B3-29)

VVL- (B27-2) - VV2- (B3-28)

Tester Connections

Specified

Conditions

VVR+ (B15-1) or VV1+ (B3-19) - Body ground

10 k

Ω or higher

VVL+ (B27-1) or VV2+ (B3-18) - Body ground

VVR- (B15-2) or VV1- (B3-29) - Body ground

VVL- (B27-2) or VV2- (B3-28) - Body ground

REPAIR OR REPLACE HARNESS OR
CONNECTOR

4

CHECK SENSOR INSTALLATION (VVT SENSOR)

Normal

Abnormal

Clearance

BR03795E39

SECURELY REINSTALL SENSOR

5

CHECK VALVE TIMING (See page

ES-79

)

ADJUST VALVE TIMING