Toyota FJ Cruiser (GSJ 10, 15 series). Instruction — part 85

1GR-FE ENGINE CONTROL SYSTEM – SFI SYSTEM

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TYPICAL ENABLING CONDITIONS

TYPICAL MALFUNCTION THRESHOLDS

COMPONENT OPERATING RANGE

FAIL-SAFE

When this DTC, as well as other DTCs relating to ETCS (Electronic Throttle Control System)
malfunctions, is set, the ECM enters fail-safe mode. During fail-safe mode, the ECM cuts the current to
the throttle actuator off, and the throttle valve is returned to a 6

° throttle angle by the return spring. The

ECM then adjusts the engine output by controlling the fuel injection (intermittent fuel-cut) and ignition
timing, in accordance with the accelerator pedal opening angle, to allow the vehicle to continue at a
minimal speed. If the accelerator pedal is depressed firmly and gently, the vehicle can be driven slowly.
Fail-safe mode continues until a pass condition is detected, and the ignition switch is then turned OFF.

WIRING DIAGRAM

MIL Operation

Immediate

Sequence of Operation

None

Monitor runs whenever following DTCs not present

None

Electronic throttle actuator power

ON

Battery voltage

8 V or more

Electronic throttle actuator power supply voltage (+BM)

Less than 4 V

Throttle actuator power supply voltage

11 to 14 V

ETCS

Battery

ECM

+BM

ME01

2

1

7

E47

3

B2

A133422E02

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INSPECTION PROCEDURE

HINT:
Read freeze frame data using an intelligent tester. Freeze frame data record 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.

(a) Remove the ETCS fuse from the engine room R/B.
(b) Check the ETCS fuse resistance.

Standard resistance:

Below 1

Ω

(c) Reinstall the ETCS fuse.

NG

OK

(a) Measure the voltage between the terminals of the B2

and E47 ECM connectors.
Standard Voltage

OK

NG

1

CHECK FUSE (ETCS FUSE)

ETCS Fuse

Engine Room R/B:

A133438E01

CHECK FOR SHORT IN ALL HARNESSES
AND CONNECTORS CONNECTED TO FUSE
AND REPLACE FUSE

2

INSPECT ECM (+BM VOLTAGE)

B2

E47

ME01 (-)

+BM (+)

ECM Connector

G100798E12

Tester Connections

Specified Conditions

+BM (E47-7) - ME01 (B2-3)

11 to 14 V

CHECK FOR INTERMITTENT PROBLEMS

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(a) Check the harness and connector between the ETCS

fuse and ECM.
(1) Remove the ETCS fuse from the engine room R/B.
(2) Disconnect the E47 ECM connector.
(3) Check the resistance.

Standard Resistance (Check for open)

Standard Resistance (Check for short)

(4) Reinstall the ETCS fuse.
(5) Reconnect the ECM connector.

(b) Check the harness and connector between the ETCS

fuse and positive battery cable.
(1) Remove the ETCS fuse from the engine room R/B.
(2) Disconnect the positive battery cable.
(3) Check the resistance.

Standard Resistance (Check for open)

Standard Resistance (Check for short)

(4) Reinstall the ETCS fuse.
(5) Reconnect the positive battery cable.

NG

OK

3

CHECK HARNESS AND CONNECTOR (ECM - ETCS FUSE, ETCS FUSE - BATTERY)

1

2

E47

+BM

ECM Connector

ETCS Fuse

Engine Room R/B:

A133448E01

Tester Connections

Specified Conditions

ETCS fuse (2) - +BM (E47-7)

Below 1

Ω

Tester Connections

Specified Conditions

ETCS fuse (2) or +BM (E47-7) - Body ground

10 k

Ω or higher

Tester Connections

Specified Conditions

Positive battery cable - ETCS fuse (1)

Below 1

Ω

Tester Connections

Specified Conditions

Positive battery cable or ETCS fuse (1) - Body

ground

10 k

Ω or higher

REPAIR OR REPLACE HARNESS OR
CONNECTOR

REPLACE ECM (See page

ES-446

)

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DESCRIPTION

The Electronic Throttle Control System (ETCS) is composed of the throttle actuator, Throttle Position (TP)
sensor, Accelerator Pedal Position (APP) sensor, and ECM. The ECM operates the throttle actuator to
regulate the throttle valve in response to driver inputs. The TP sensor detects the opening angle of the
throttle valve, and provides the ECM with feedback so that the throttle valve can be appropriately
controlled by the ECM.

MONITOR DESCRIPTION

The ECM determines the actual opening angle of the throttle valve from the TP sensor signal. The actual
opening angle is compared to the target opening angle commanded by the ECM. If the difference
between these two values is outside the standard range, the ECM interprets this as a malfunction in the
ETCS. The ECM then illuminates the MIL and sets the DTC.
If the malfunction is not repaired successfully, the DTC is set when the accelerator pedal is quickly
released (to close the throttle valve) after the engine speed reaches 5,000 rpm by the accelerator pedal
being fully depressed (fully open the throttle valve).

MONITOR STRATEGY

TYPICAL ENABLING CONDITIONS

TYPICAL MALFUNCTION THRESHOLDS

DTC

P2119

Throttle Actuator Control Throttle Body Range /
Performance

DTC No.

DTC Detection Conditions

Trouble Areas

P2119

Throttle valve opening angle continues to vary greatly from
target opening angle (1 trip detection logic)

•

ETCS

•

ECM

Related DTCs

P2119: ETCS malfunction

Required Sensors/Components (Main)

Throttle actuator

Required Sensors/Components (Related)

-

Frequency of Operation

Continuous

Duration

1 second

MIL Operation

Immediate

Sequence of Operation

None

Monitor runs whenever following DTCs not present

None

System guard

*

ON

*

System guard set when following conditions met

-

Throttle motor

ON

Motor duty calculation

Executing

TPS fail determination

Fail determined

Motor current-cut operation

Not executing

Actuator power supply

4 V or more

Motor fail determination

Fail determined

Either of following conditions A or B met

-

A. Commanded closed TP - current closed TP

0.3 V or more for 1 second

B. Commanded open TP - current open TP

0.3 V or more for 0.6 seconds