Index Infiniti Infiniti FX35 / FX45 (S50) - service repair manual 2008 year

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Infiniti FX35 / FX45. Manual - part 323

IVIS (INFINITI VEHICLE IMMOBILIZER SYSTEM-NATS)

EC-53

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IVIS (INFINITI VEHICLE IMMOBILIZER SYSTEM-NATS)

Description

INFOID:0000000001325913

• If the security indicator lights up with the ignition switch in the ON position or “NATS MALFUNC-

TION” is displayed on “SELF-DIAG RESULTS” screen, perform self-diagnostic results mode with
CONSULT-III using NATS program card. Refer to

• Confirm no self-diagnostic results of IVIS (NATS) is displayed before touching “ERASE” in “SELF-

DIAG RESULTS” mode with CONSULT-III.

• When replacing ECM, initialization of IVIS (NATS) system and registration of all IVIS (NATS) ignition

key IDs must be carried out with CONSULT-III using NATS program card.
Therefore, be sure to receive all keys from vehicle owner. Regarding the procedures of IVIS (NATS)
initialization and all IVIS (NATS) ignition key ID registration, refer to CONSULT-III Operation Manual,
IVIS/NVIS.

EC-54

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ON BOARD DIAGNOSTIC (OBD) SYSTEM

ON BOARD DIAGNOSTIC (OBD) SYSTEM

Introduction

INFOID:0000000001325914

The ECM has an on board diagnostic system, which detects malfunctions related to engine sensors or actua-
tors. The ECM also records various emission-related diagnostic information including:

The above information can be checked using procedures listed in the table below.

×

: Applicable

—: Not applicable

*: When DTC and 1st trip DTC simultaneously appear on the display, they cannot be clearly distinguished from each other.

The malfunction indicator lamp (MIL) on the instrument panel lights up when the same malfunction is detected
in two consecutive trips (Two trip detection logic), or when the ECM enters fail-safe mode. (Refer to

"Fail-Safe Chart"

Two Trip Detection Logic

INFOID:0000000001325915

When a malfunction is detected for the 1st time, 1st trip DTC and 1st trip Freeze Frame data are stored in the
ECM memory. The MIL will not light up at this stage. <1st trip>
If the same malfunction is detected again during the next drive, the DTC and Freeze Frame data are stored in
the ECM memory, and the MIL lights up. The MIL lights up at the same time when the DTC is stored. <2nd
trip> The “trip” in the “Two Trip Detection Logic” means a driving mode in which self-diagnosis is performed
during vehicle operation. Specific on board diagnostic items will cause the ECM to light up or blink the MIL,
and store DTC and Freeze Frame data, even in the 1st trip, as shown below.

×

: Applicable

—: Not applicable

When there is an open circuit on MIL circuit, the ECM cannot warn the driver by lighting up MIL when there is
malfunction on engine control system.

Emission-related diagnostic information

Diagnostic service

Diagnostic Trouble Code (DTC)

Service $03 of SAE J1979

Freeze Frame data

Service $02 of SAE J1979

System Readiness Test (SRT) code

Service $01 of SAE J1979

1st Trip Diagnostic Trouble Code (1st Trip DTC)

Service $07 of SAE J1979

1st Trip Freeze Frame data

Test values and Test limits

Service $06 of SAE J1979

Calibration ID

Service $09 of SAE J1979

DTC

1st trip DTC

Freeze

Frame data

1st trip Freeze

Frame data

SRT code

SRT status

Test value

CONSULT-III

×

×

×

×

×

×

—

GST

×

×

×

—

×

×

×

ECM

×

×

*

—

—

—

×

—

Items

MIL

DTC

1st trip DTC

1st trip

2nd trip

1st trip

displaying

2nd trip

displaying

1st trip

displaying

2nd trip

display-

ing

Blinking

Lighting

up

Blinking

Lighting

up

Misfire (Possible three way catalyst
damage) — DTC: P0300 - P0306 is
being detected

×

—

—

—

—

—

×

—

Misfire (Possible three way catalyst
damage) — DTC: P0300 - P0306 is
being detected

—

—

×

—

—

×

—

—

One trip detection diagnoses (Re-
fer to

EC-55, "Emission-Related Di-

agnostic Information"

—

×

—

—

×

—

—

—

Except above

—

—

—

×

—

×

×

—

ON BOARD DIAGNOSTIC (OBD) SYSTEM

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Therefore, when electrical controlled throttle and part of ECM related diagnoses are continuously detected as
NG for 5 trips, ECM warns the driver that engine control system malfunctions and MIL circuit is open by means
of operating fail-safe function.
The fail-safe function also operates when above diagnoses except MIL circuit are detected and demands the
driver to repair the malfunction.

Emission-Related Diagnostic Information

INFOID:0000000001325916

EMISSION-RELATED DIAGNOSTIC INFORMATION ITEMS

×

: Applicable

—: Not applicable

Engine operating condition in fail-safe mode

Engine speed will not rise more than 2,500 rpm due to the fuel cut

Items

(CONSULT-III screen terms)

DTC*

1

SRT code

Trip

MIL

Reference

page

CONSULT-III

GST*

2

ECM*

3

CAN COMM CIRCUIT

U1000

1000*

5

—

1

×

CAN COMM CIRCUIT

U1001

1001*

5

—

2

(Models with

ASCD)

—

1 or 2

(Models with

ICC)

CONTROL UNIT(CAN)

U1010

1010

—

1

×

NO DTC IS DETECTED.
FURTHER TESTING
MAY BE REQUIRED.

P0000

0000

—

—

Flashing*

8

—

INT/V TIM CONT-B1

P0011

0011

—

2

×

INT/V TIM CONT-B2

P0021

0021

—

2

×

A/F SEN1 HTR (B1)

P0031

0031

—

2

×

A/F SEN1 HTR (B1)

P0032

0032

—

2

×

HO2S2 HTR (B1)

P0037

0037

—

2

×

HO2S2 HTR (B1)

P0038

0038

—

2

×

A/F SEN1 HTR (B2)

P0051

0051

—

2

×

A/F SEN1 HTR (B2)

P0052

0052

—

2

×

HO2S2 HTR (B2)

P0057

0057

—

2

×

HO2S2 HTR (B2)

P0058

0058

—

2

×

INT/V TIM V/CIR-B1

P0075

0075

—

2

×

INT/V TIM V/CIR-B2

P0081

0081

—

2

×

MAF SEN/CIRCUIT-B1

P0101

0101

—

2

×

MAF SEN/CIRCUIT-B1

P0102

0102

—

1

×

MAF SEN/CIRCUIT-B1

P0103

0103

—

1

×

IAT SEN/CIRCUIT-B1

P0112

0112

—

2

×

IAT SEN/CIRCUIT-B1

P0113

0113

—

2

×

ECT SEN/CIRC

P0117

0117

—

1

×

ECT SEN/CIRC

P0118

0118

—

1

×

TP SEN 2/CIRC-B1

P0122

0122

—

1

×

TP SEN 2/CIRC-B1

P0123

0123

—

1

×

ECT SENSOR

P0125

0125

—

2

×

IAT SENSOR-B1

P0127

0127

—

2

×

THERMSTAT FNCTN

P0128

0128

—

2

×

EC-56

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ON BOARD DIAGNOSTIC (OBD) SYSTEM

A/F SENSOR1 (B1)

P0130

0130

—

2

×

A/F SENSOR1 (B1)

P0131

0131

—

2

×

A/F SENSOR1 (B1)

P0132

0132

—

2

×

A/F SENSOR1 (B1)

P0133

0133

×

2

×

HO2S2 (B1)

P0137

0137

×

2

×

HO2S2 (B1)

P0138

0138

×

2

×

HO2S2 (B1)

P0139

0139

×

2

×

A/F SENSOR1 (B2)

P0150

0150

—

2

×

A/F SENSOR1 (B2)

P0151

0151

—

2

×

A/F SENSOR1 (B2)

P0152

0152

—

2

×

A/F SENSOR1 (B2)

P0153

0153

×

2

×

HO2S2 (B2)

P0157

0157

×

2

×

HO2S2 (B2)

P0158

0158

×

2

×

HO2S2 (B2)

P0159

0159

×

2

×

FUEL SYS-LEAN-B1

P0171

0171

—

2

×

FUEL SYS-RICH-B1

P0172

0172

—

2

×

FUEL SYS-LEAN-B2

P0174

0174

—

2

×

FUEL SYS-RICH-B2

P0175

0175

—

2

×

FTT SENSOR

P0181

0181

—

2

×

FTT SEN/CIRCUIT

P0182

0182

—

2

×

FTT SEN/CIRCUIT

P0183

0183

—

2

×

TP SEN 1/CIRC-B1

P0222

0222

—

1

×

TP SEN 1/CIRC-B1

P0223

0223

—

1

×

MULTI CYL MISFIRE

P0300

0300

—

2

×

CYL 1 MISFIRE

P0301

0301

—

2

×

CYL 2 MISFIRE

P0302

0302

—

2

×

CYL 3 MISFIRE

P0303

0303

—

2

×

CYL 4 MISFIRE

P0304

0304

—

2

×

CYL 5 MISFIRE

P0305

0305

—

2

×

CYL 6 MISFIRE

P0306

0306

—

2

×

KNOCK SEN/CIRC-B1

P0327

0327

—

2

—

KNOCK SEN/CIRC-B1

P0328

0328

—

2

—

CKP SEN/CIRCUIT

P0335

0335

—

2

×

CMP SEN/CIRC-B1

P0340

0340

—

2

×

CMP SEN/CIRC-B2

P0345

0345

—

2

×

TW CATALYST SYS-B1

P0420

0420

×

2

×

TW CATALYST SYS-B2

P0430

0430

×

2

×

EVAP PURG FLOW/MON

P0441

0441

×

2

×

EVAP SMALL LEAK

P0442

0442

×

2

×

PURG VOLUME CONT/V

P0443

0443

—

2

×

PURG VOLUME CONT/V

P0444

0444

—

2

×

PURG VOLUME CONT/V

P0445

0445

—

2

×

Items

(CONSULT-III screen terms)

DTC*

1

SRT code

Trip

MIL

Reference

page

CONSULT-III

GST*

2

ECM*

3

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