Toyota FJ Cruiser (GSJ 10, 15 series). Instruction — part 23

1GR-FE ENGINE CONTROL SYSTEM – SFI SYSTEM

ES–47

ES

CHECK MODE PROCEDURE

HINT:
Intelligent tester only:
Compared to normal mode, check mode is more sensitive to
malfunctions. Therefore, check mode can detect the
malfunctions that cannot be detected by normal mode.
NOTICE:
All the stored DTCs and freeze frame data are erased if:
1) the ECM is changed from normal mode to check mode
or vice versa; or 2) the ignition switch is turned from ON
to ACC or OFF while in check mode.
Before changing modes, always check and make a note
of any DTCs and freeze frame data.

1.

CHECK MODE PROCEDURE (Using an intelligent
tester)
(a) Check and ensure the following conditions:

(1) Battery voltage 11 V or more
(2) Throttle valve fully closed
(3) Transmission in the P or N positions
(4) A/C switched OFF

(b) Turn the ignition switch OFF.
(c) Connect an intelligent tester to the DLC3.
(d) Turn the ignition switch ON.
(e) Turn the tester ON.
(f)

Select the following menu items: DIAGNOSIS /
ENHANCED OBD II / CHECK MODE.

(g) Switch the ECM from normal mode to check mode.

(h) Make sure the MIL flashes as shown in the

illustration.

(i)

Start the engine.

(j)

Make sure the MIL turns off.

(k) Simulate the conditions of the malfunction described

by the customer.

(l)

Check DTCs and freeze frame data using the tester.

Intelligent Tester

DLC3

CAN VIM

H102157E03

0.13 seconds

0.13 seconds

ON

OFF

A076900E12

ES–48

1GR-FE ENGINE CONTROL SYSTEM – SFI SYSTEM

ES

FAIL-SAFE CHART

If any of the following DTCs are set, the ECM enters fail-safe
mode to allow the vehicle to be driven temporarily.

NOTICE:
* The vehicle can be driven slowly when the accelerator
pedal is depressed firmly and slowly. If the accelerator
pedal is depressed quickly, the vehicle may speed up
and slow down erratically.

DTCs

Components

Fail-Safe Operations

Fail-Safe Deactivation

Conditions

P0031, P0032, P0051 and P0052

Air-Fuel Ratio (A/F) Sensor
Heater

ECM turns off A/F sensor heater.

Ignition switch OFF

P0037, P0038, P0057 and P0058

Heated Oxygen (HO2) Sensor
Heater

ECM turns off HO2 sensor heater.

Ignition switch OFF

P0100, P0102 and P0103

Mass Air Flow (MAF) Meter

ECM calculates ignition timing
according to engine speed and
throttle valve position.

Pass condition detected

P0110, P0112 and P0113

Intake Air Temperature (IAT)
Sensor

ECM estimates IAT to be 20

°C

(68

°F).

Pass condition detected

P0115, P0117 and P0118

Engine Coolant Temperature
(ECT) Sensor

ECM estimates ECT to be 80

°C

(176

°F).

Pass condition detected

P0120, P0121, P0122, P0123,
P0220, P0222, P0223, P0604,
P0606, P0607, P0657, P2102,
P2103, P2111, P2112, P2118,
P2119 and P2135

Electronic Throttle Control
System (ETCS)

ECM cuts off throttle actuator
current and throttle valve returned
to 6

° throttle position by return

spring.
ECM then adjusts engine output
by controlling fuel injection
(intermittent fuel-cut) and ignition
timing in accordance with
accelerator pedal opening angle,
to allow vehicle to continue at
minimal speed.*

Pass condition detected and then
ignition switch turned OFF

P0327, P0328, P0332 and P0333

Knock Sensor

ECM sets ignition timing to
maximum retard.

Ignition switch OFF

P0351 to P0356

Igniter

ECM cuts fuel.

Pass condition detected

P2120, P2121, P2122, P2123,
P2125, P2127, P2128 and P2138

Accelerator Pedal Position (APP)
Sensor

APP sensor has 2 sensor circuits:
Main and Sub.
If either of circuits malfunctions,
ECM controls engine using other
circuit.
If both of circuits malfunction,
ECM regards accelerator pedal
as being released. As a result,
throttle valve is closed and engine
idles.

Pass condition detected and then
ignition switch turned OFF

1GR-FE ENGINE CONTROL SYSTEM – SFI SYSTEM

ES–49

ES

DATA LIST / ACTIVE TEST

1.

DATA LIST
HINT:
By reading the DATA LIST displayed on an intelligent
tester, you can check values, including those of the
switches, sensors, and actuators, without removing any
parts. Reading the DATA LIST as the first step of
troubleshooting is one method of shortening diagnostic
time.
NOTICE:
In the table below, the values listed under Normal
Condition are for reference only. Do not depend
solely on these values when determining whether or
not a part is faulty.
(a) Warm up the engine.
(b) Turn the ignition switch OFF.
(c) Connect an intelligent tester to the DLC3.
(d) Turn the ignition switch ON.
(e) Turn the tester ON.
(f)

Select the following menu items: DIAGNOSIS /
ENHANCED OBD II / DATA LIST.

(g) Check the values by referring to the table below.

Intelligent Tester Display

Measurement Item: Range

(Display)

Normal Condition *

Diagnostic Note

INJECTOR

Injection period of No. 1 cylinder:
Min.: 0 ms, Max.: 32.64 ms

1.6 to 2.4 ms: Idling

-

IGN ADVANCE

Ignition timing advance for No. 1
cylinder/
Min.: -64 deg., Max.: 63.5 deg.

BTDC 7 to 24

°: Idling

-

CALC LOAD

Calculated load by ECM:
Min.: 0 %, Max.: 100 %

•

11.4 to 16.4 %: Idling

•

13.1 to 18.9 %: Running
without load (2,500 rpm)

-

VEHICLE LOAD

Vehicle load:
Min.: 0 %, Max.: 25,700 %

Actual vehicle load

-

MAF

Air flow rate from MAF meter:
Min.: 0 g/sec, Max.: 655.35 g/sec

3.2 to 4.7 g/sec: Idling
13.1 to 18.9 g/sec: 2,500 rpm

If value approximately 0.0 g/sec:
•

Mass air flow meter power
source circuit open

•

VG circuit open or short
If value 160.0 g/sec or more:

•

E2G circuit open

ENGINE SPD

Engine speed:
Min.: 0 rpm, Max.: 16,383.75 rpm

650 to 750 rpm: Idling

-

VEHICLE SPD

Vehicle speed:
Min.: 0 km/h, Max.: 255 km/h

Actual vehicle speed

Speed indicated on speedometer

COOLANT TEMP

Engine coolant temperature:
Min.: -40

°C, Max.: 140°C

80 to 100

°C

(176 to 212

°F):After warming up

•

If value -40

°C (-40°F): sensor

circuit open

•

If value 140

°C (284°F) or

more: sensor circuit shorted

INTAKE AIR

Intake air temperature:
Min.: -40

°C, Max.: 140°C

Equivalent to ambient air
temperature

•

If value -40

°C (-40°F): sensor

circuit open

•

If value 140

°C (284°F) or

more: sensor circuit shorted

AIR-FUEL RATIO

Air-fuel ratio:
Min.: 0, Max.: 1.999

0.8 to 1.2: During idling

-

PURGE DENSITY

Learning value of purge density/
Min.: -50 , Max.: 350

-40 to 0 %: Idling

Service data

EVAP PURGE FLOW

Purge flow:
Min.: 0 %, Max.: 102.4 %

0 to 100 %: Idling

-

ES–50

1GR-FE ENGINE CONTROL SYSTEM – SFI SYSTEM

ES

EVAP PURGE VSV

EVAP (Purge) VSV control duty:
Min.: 0 %, Max.: 100 %

0 to 100 %: During idling

Order signal from ECM

VAPOR PRES PUMP

Vapor pressure:
Min.: 33.853 kPa,
Max.: 125.596 kPa

Approximately 100 kPa:
Ignition switch ON

EVAP system pressure monitored
by canister pressure sensor

VAPOR PRES CALC

Vapor pressure: (calculated)
Min.: -5.632 kPa,
Max.: 7,153,264 kPa

Approximately 100 kPa:
Ignition switch ON

EVAP system pressure monitored
by canister pressure sensor

KNOCK CRRT VAL

Correction learning value of
knocking:
Min.: -64

° CA, Max.: 1,984° CA

0 to 22

°CA:

Driving, 44 mph (70 km/h)

Service data

KNOCK FB VAL

Feedback value of knocking:
Min.: -64

° CA, Max.: 1,984° CA

-22 to 0

°CA

Driving, 44 mph (70 km/h)

Service data

ACCEL POS #1

Absolute Accelerator Pedal
Position (APP) No. 1:
Min.: 0 %, Max.: 100 %

10 to 22 %: Accelerator pedal
released
54 to 86 %: Accelerator pedal
fully depressed

-

ACCEL POS #2

Absolute APP No. 2:
Min.: 0 %, Max.: 100 %

12 to 42 %: Accelerator pedal
released
66 to 98 %: Accelerator pedal
fully depressed

-

ACCEL POS #1

APP sensor No. 1 voltage:
Min.: 0 V, Max.: 5 V

0.5 to 1.1 V: Accelerator pedal
released.
2.6 to 4.5t V: Accelerator pedal
fully depressed.

-

ACCEL POS #2

APP sensor No. 2 voltage:
Min.: 0 V, Max.: 5 V

1.2 to 2.0 V: Accelerator pedal
released.
3.4 to 5.0 V: Accelerator pedal
fully depressed.

-

ACCEL IDL POS

Whether or not accelerator pedal
position sensor detecting idle:
ON or OFF

ON: Idling

-

THRTL LEARN VAL

Throttle valve fully closed
(learned value):
Min.: 0 V, Max.: 5 V

0.4 to 0.8 V

-

ACCEL SSR #1 AD

Accelerator fully closed value
No.1 (AD):
Min.: 0, Max.: 4.9804 V

-

ETCS service data

ACCEL LRN VAL#1

Accelerator fully closed learning
value No.1:
Min.: 0, Max.: 124.512

-

ETCS service data

ACCEL LRN VAL#2

Accelerator fully closed learning
value No.2:
Min.: 0, Max.: 124.512

-

ETCS service data

FAIL #1

Whether or not fail safe function
executed:
ON or OFF

ON: ETCS has failed

-

FAIL #2

Whether or not fail safe function
executed:
ON or OFF

ON: ETCS has failed

-

ST1

Starter signal:
ON or OFF

ON: Cranking

-

SYS GUARD JUDGE

System guard:
ON or OFF

-

ETCS service data

OPN MALFUNCTION

Open side malfunction:
ON or OFF

-

ETCS service data

THROTTLE POS

Absolute throttle position sensor:
Min.: 0 %, Max.: 100 %

•

10 to 24 %: Throttle fully
closed

•

64 to 96 %: Throttle fully open

Read value with intrusive
operation (active test)

Intelligent Tester Display

Measurement Item: Range

(Display)

Normal Condition *

Diagnostic Note