Infiniti QX56 (JA60). Manual — part 452

EC-460

< ECU DIAGNOSIS >

[VK56DE]

ECM

A/F SENSOR1 (B2)

P0151

0151

—

2

×

EC-141

A/F SENSOR1 (B2)

P0152

0152

—

2

×

EC-145

A/F SENSOR1 (B2)

P0153

0153

×

2

×

EC-149

HO2S2 (B2)

P0157

0157

×

2

×

EC-155

HO2S2 (B2)

P0158

0158

×

2

×

EC-160

HO2S2 (B2)

P0159

0159

×

2

×

EC-167

FUEL SYS-LEAN-B1

P0171

0171

—

2

×

EC-172

FUEL SYS-RICH-B1

P0172

0172

—

2

×

EC-177

FUEL SYS-LEAN-B2

P0174

0174

—

2

×

EC-172

FUEL SYS-RICH-B2

P0175

0175

—

2

×

EC-177

FTT SENSOR

P0181

0181

—

2

×

EC-182

FTT SEN/CIRCUIT

P0182

0182

—

2

×

EC-185

FTT SEN/CIRCUIT

P0183

0183

—

2

×

EC-185

TP SEN 1/CIRC-B1

P0222

0222

—

1

×

EC-188

TP SEN 1/CIRC-B1

P0223

0223

—

1

×

EC-188

MULTI CYL MISFIRE

P0300

0300

—

2

×

EC-192

CYL 1 MISFIRE

P0301

0301

—

2

×

EC-192

CYL 2 MISFIRE

P0302

0302

—

2

×

EC-192

CYL 3 MISFIRE

P0303

0303

—

2

×

EC-192

CYL 4 MISFIRE

P0304

0304

—

2

×

EC-192

CYL 5 MISFIRE

P0305

0305

—

2

×

EC-192

CYL 6 MISFIRE

P0306

0306

—

2

×

EC-192

CYL 7 MISFIRE

P0307

0307

—

2

×

EC-192

CYL 8 MISFIRE

P0308

0308

—

2

×

EC-192

KNOCK SEN/CIRC-B1

P0327

0327

—

2

—

EC-198

KNOCK SEN/CIRC-B1

P0328

0328

—

2

—

EC-198

KNOCK SEN/CIRC-B2

P0332

0332

—

2

—

EC-198

KNOCK SEN/CIRC-B2

P0333

0333

—

2

—

EC-198

CKP SEN/CIRCUIT

P0335

0335

—

2

×

EC-201

CMP SEN/CIRC-B1

P0340

0340

—

2

×

EC-205

TW CATALYST SYS-B1

P0420

0420

×

2

×

EC-209

TW CATALYST SYS-B2

P0430

0430

×

2

×

EC-209

EVAP PURG FLOW/MON

P0441

0441

×

2

×

EC-213

EVAP SMALL LEAK

P0442

0442

×

2

×

EC-218

PURG VOLUME CONT/V

P0443

0443

—

2

×

EC-225

PURG VOLUME CONT/V

P0444

0444

—

2

×

EC-231

PURG VOLUME CONT/V

P0445

0445

—

2

×

EC-231

VENT CONTROL VALVE

P0447

0447

—

2

×

EC-234

VENT CONTROL VALVE

P0448

0448

—

2

×

EC-238

EVAP SYS PRES SEN

P0451

0451

—

2

×

EC-242

EVAP SYS PRES SEN

P0452

0452

—

2

×

EC-245

EVAP SYS PRES SEN

P0453

0453

—

2

×

EC-249

Items

(CONSULT-IIl screen terms)

DTC*

1

SRT code

Trip

MIL

Reference

page

CONSULT-IIl

GST*

2

ECM*

3

ECM

EC-461

< ECU DIAGNOSIS >

[VK56DE]

C

D

E

F

G

H

I

J

K

L

M

A

EC

N

P

O

EVAP GROSS LEAK

P0455

0455

—

2

×

EC-254

EVAP VERY SML LEAK

P0456

0456

×*

4

2

×

EC-261

FUEL LEV SEN SLOSH

P0460

0460

—

2

×

EC-269

FUEL LEVEL SENSOR

P0461

0461

—

2

×

EC-271

FUEL LEVL SEN/CIRC

P0462

0462

—

2

×

EC-273

FUEL LEVL SEN/CIRC

P0463

0463

—

2

×

EC-273

VEH SPEED SEN/CIRC*

6

P0500

0500

—

2

×

EC-275

ISC SYSTEM

P0506

0506

—

2

×

EC-277

ISC SYSTEM

P0507

0507

—

2

×

EC-279

PW ST P SEN/CIRC

P0550

0550

—

2

—

EC-281

ECM BACK UP/CIRC

P0603

0603

—

2

×

EC-284

ECM

P0605

0605

—

1 or 2

× or —

EC-286

ECM

P0607

0607

—

1

×

EC-288

SENSOR POWER/CIRC

P0643

0643

—

1

×

EC-289

TRANSMISSION CONT

P0700

0700

—

1

×

TM-44

T/M RANGE SENSOR A

P0705

0705

—

2

×

TM-45

FLUID TEMP SENSOR A

P0710

0710

—

2

×

TM-73

INPUT SPEED SENSOR A

P0717

0717

—

2

×

TM-48

OUTPUT SPEED SENSOR*

6

P0720

0720

—

2

×

TM-50

1GR INCORRECT RATION

P0731

0731

—

2

×

TM-55

2GR INCORRECT RATION

P0732

0732

—

2

×

TM-57

3GR INCORRECT RATION

P0733

0733

—

2

×

TM-59

4GR INCORRECT RATION

P0734

0734

—

2

×

TM-61

5GR INCORRECT RATION

P0735

0735

—

2

×

TM-63

TORQUE CONVERTER

P0740

0740

—

2

×

TM-65

TORQUE CONVERTER

P0744

0744

—

2

×

TM-67

PC SOLENOID A

P0745

0745

—

2

×

TM-69

P-N POS SW/CIRCUIT

P0850

0850

—

2

×

EC-292

INTK TIM S/CIRC-B1

P1140

1140

—

2

×

EC-295

INTK TIM S/CIRC-B2

P1145

1145

—

2

×

EC-295

CLOSED LOOP-B1

P1148

1148

—

1

×

EC-299

CLOSED LOOP-B2

P1168

1168

—

1

×

EC-299

TCS C/U FUNCTN

P1211

1211

—

2

—

EC-300

TCS/CIRC

P1212

1212

—

2

—

EC-301

ENG OVER TEMP

P1217

1217

—

1

×

EC-36

CTP LEARNING-B1

P1225

1225

—

2

—

EC-306

CTP LEARNING-B1

P1226

1226

—

2

—

EC-308

COLD START CONTROL

P1421

1421

—

2

×

EC-310

BAT CURRENT SENSOR

P1550

1550

—

2

—

EC-312

BAT CURRENT SENSOR

P1551

1551

—

2

—

EC-316

BAT CURRENT SENSOR

P1552

1552

—

2

—

EC-316

BAT CURRENT SENSOR

P1553

1553

—

2

—

EC-320

Items

(CONSULT-IIl screen terms)

DTC*

1

SRT code

Trip

MIL

Reference

page

CONSULT-IIl

GST*

2

ECM*

3

EC-462

< ECU DIAGNOSIS >

[VK56DE]

ECM

*1: 1st trip DTC No. is the same as DTC No.
*2: This number is prescribed by SAE J2012.

BAT CURRENT SENSOR

P1554

1554

—

2

—

EC-324

ASCD SW

P1564

1564

—

1

—

EC-328

(Models

with ICC)

EC-332

(Models

with ASCD)

ICC COMMAND VALUE*

9

P1568

1568

—

1

—

EC-336

ASCD BRAKE SW

P1572

1572

—

1

—

EC-337

(Models

with ICC)

EC-344

(Models

with ASCD)

ASCD VHL SPD SEN*

8

P1574

1574

—

1

—

EC-349

(Models

with ICC)

EC-351

(Models

with ASCD)

ID DISCARD IMM-ECM

P1611

1611

—

2

—

SEC-41

CHAIN OF ECM-IMMU

P1612

1612

—

2

—

SEC-37

CHAIN OF IMMU-KEY

P1614

1614

—

2

—

SEC-31

DIFFERENCE OF KEY

P1615

1615

—

2

—

SEC-34

INTERLOCK

P1730

1730

—

1

×

TM-78

INPUT CLUTCH SOLENOID

P1752

1752

—

1

×

TM-82

FR BRAKE SOLENOID

P1757

1757

—

1

×

TM-84

DRCT CLUTCH SOLENOID

P1762

1762

—

1

×

TM-86

HLR CLUTCH SOLENOID

P1767

1767

—

1

×

TM-88

L C BRAKE SOLENOID

P1772

1772

—

1

×

TM-90

L C BRAKE SOLENOID

P1774

1774

—

1

×

TM-92

BRAKE SW/CIRCUIT

P1805

1805

—

2

—

EC-353

ETC MOT PWR-B1

P2100

2100

—

1

×

EC-356

ETC FUNCTION/CIRC-B1

P2101

2101

—

1

×

EC-359

ETC MOT PWR

P2103

2103

—

1

×

EC-356

ETC MOT-B1

P2118

2118

—

1

×

EC-363

ETC ACTR-B1

P2119

2119

—

1

×

EC-365

APP SEN 1/CIRC

P2122

2122

—

1

×

EC-367

APP SEN 1/CIRC

P2123

2123

—

1

×

EC-367

APP SEN 2/CIRC

P2127

2127

—

1

×

EC-370

APP SEN 2/CIRC

P2128

2128

—

1

×

EC-370

TP SENSOR-B1

P2135

2135

—

1

×

EC-374

APP SENSOR

P2138

2138

—

1

×

EC-378

A/F SENSOR1 (B1)

P2A00

2A00

—

2

×

EC-382

A/F SENSOR1 (B2)

P2A03

2A03

—

2

×

EC-382

Items

(CONSULT-IIl screen terms)

DTC*

1

SRT code

Trip

MIL

Reference

page

CONSULT-IIl

GST*

2

ECM*

3

ECM

EC-463

< ECU DIAGNOSIS >

[VK56DE]

C

D

E

F

G

H

I

J

K

L

M

A

EC

N

P

O

*3: In Diagnostic Test Mode II (Self-diagnostic results), this number is controlled by NISSAN.
*4: SRT code will not be set if the self-diagnostic result is NG.
*5: The troubleshooting for this DTC needs CONSULT-III.
*6: When the fail-safe operations for both self-diagnoses occur, the MIL illuminates.
*7: When the ECM is in the mode of displaying SRT status, MIL may flash. For the details, refer to "How to Display SRT Status".
*8: 2WD models
*9: Models with ICC
*10: Models without ICC

Emission-related Diagnostic Information

INFOID:0000000005149499

DTC AND 1ST TRIP DTC

The 1st trip DTC (whose number is the same as the DTC number) is displayed for the latest self-diagnostic

result obtained. If the ECM memory was cleared previously, and the 1st trip DTC did not reoccur, the 1st trip

DTC will not be displayed.

If a malfunction is detected during the 1st trip, the 1st trip DTC is stored in the ECM memory. The MIL will not

light up (two trip detection logic). If the same malfunction is not detected in the 2nd trip (meeting the required

driving pattern), the 1st trip DTC is cleared from the ECM memory. If the same malfunction is detected in the

2nd trip, both the 1st trip DTC and DTC are stored in the ECM memory and the MIL lights up. In other words,

the DTC is stored in the ECM memory and the MIL lights up when the same malfunction occurs in two consec-

utive trips. If a 1st trip DTC is stored and a non-diagnostic operation is performed between the 1st and 2nd

trips, only the 1st trip DTC will continue to be stored. For malfunctions that blink or light up the MIL during the

1st trip, the DTC and 1st trip DTC are stored in the ECM memory.

Procedures for clearing the DTC and the 1st trip DTC from the ECM memory are described in "HOW TO

ERASE EMISSION-RELATED DIAGNOSTIC INFORMATION".

For malfunctions in which 1st trip DTCs are displayed, refer to "EMISSION-RELATED DIAGNOSTIC INFOR-

MATION ITEMS". These items are required by legal regulations to continuously monitor the system/compo-

nent. In addition, the items monitored non-continuously are also displayed on CONSULT-III.

1st trip DTC is specified in Service $07 of SAE J1979. 1st trip DTC detection occurs without lighting up the MIL

and therefore does not warn the driver of a malfunction. However, 1st trip DTC detection will not prevent the

vehicle from being tested, for example during Inspection/Maintenance (I/M) tests.

When a 1st trip DTC is detected, check, print out or write down and erase (1st trip) DTC and Freeze Frame

data as specified in Work Flow procedure Step 2, refer to

EC-8, "Trouble Diagnosis Introduction"

. Then per-

form DTC Confirmation Procedure or Overall Function Check to try to duplicate the malfunction. If the mal-

function is duplicated, the item requires repair.

How to Read DTC and 1st Trip DTC

DTC and 1st trip DTC can be read by the following methods.

With CONSULT-III
With GST

CONSULT-III or GST (Generic Scan Tool) Examples: P0340, P0850, P1148, etc.

These DTCs are prescribed by SAE J2012.

(CONSULT-III also displays the malfunctioning component or system.)

No Tools

The number of blinks of the MIL in the Diagnostic Test Mode II (Self-Diagnostic Results) indicates the DTC.

Example: 0340, 0850, 1148, etc.

These DTCs are controlled by NISSAN.

• 1st trip DTC No. is the same as DTC No.

• Output of a DTC indicates a malfunction. However, GST or the Diagnostic Test Mode II do not indi-

cate whether the malfunction is still occurring or has occurred in the past and has returned to nor-

mal. CONSULT-III can identify malfunction status as shown below. Therefore, using CONSULT-III (if

available) is recommended.

DTC or 1st trip DTC of a malfunction is displayed in SELF-DIAGNOSTIC RESULTS mode of CONSULT-III.

Time data indicates how many times the vehicle was driven after the last detection of a DTC.

If the DTC is being detected currently, the time data will be [0].

If a 1st trip DTC is stored in the ECM, the time data will be [1t].

FREEZE FRAME DATA AND 1ST TRIP FREEZE FRAME DATA

The ECM records the driving conditions such as fuel system status, calculated load value, engine coolant tem-

perature, short term fuel trim, long term fuel trim, engine speed, vehicle speed, absolute throttle position, base

fuel schedule and intake air temperature at the moment a malfunction is detected.