Infiniti Q45. Manual - part 344

INDEX FOR DTC

EC-15

C

D

E

F

G

H

I

J

K

L

M

A

EC

FUEL SYS-LEAN-B2

P0174

0174

EC-316

FUEL SYS-RICH-B1

P0172

0172

EC-328

FUEL SYS-RICH-B2

P0175

0175

EC-328

HLR/C SOL/CIRC

P1767

1767

AT-153

HLR/C SOL FNCTN

P1769

1769

AT-155

HO2S2 (B1)

P0137

0137

EC-276

HO2S2 (B1)

P0138

0138

EC-288

HO2S2 (B1)

P0139

0139

EC-304

HO2S2 (B2)

P0157

0157

EC-276

HO2S2 (B2)

P0158

0158

EC-288

HO2S2 (B2)

P0159

0159

EC-304

HO2S2 HTR (B1)

P0037

0037

EC-180

HO2S2 HTR (B1)

P0038

0038

EC-180

HO2S2 HTR (B2)

P0057

0057

EC-180

HO2S2 HTR (B2)

P0058

0058

EC-180

I/C SOLENOID/CIRC

P1752

1752

AT-141

I/C SOLENOID FNCTN

P1754

1754

AT-143

IAT SEN/CIRCUIT

P0112

0112

EC-211

IAT SEN/CIRCUIT

P0113

0113

EC-211

IAT SENSOR

P0127

0127

EC-231

IN PULY SPEED

P1715

1715

EC-616

INT/V TIM CONT-B1

P0011

0011

EC-161

INT/V TIM CONT-B2

P0021

0021

EC-161

INT/V TIM V/CIR-B1

P0075

0075

EC-188

INT/V TIM V/CIR-B2

P0081

0081

EC-188

INTK TIM S/CIRC-B1

P1140

1140

EC-502

INTK TIM S/CIRC-B2

P1145

1145

EC-502

ISC SYSTEM

P0506

0506

EC-476

ISC SYSTEM

P0507

0507

EC-478

KNOCK SEN/CIRC-B1

P0327

0327

EC-365

KNOCK SEN/CIRC-B1

P0328

0328

EC-365

KNOCK SEN/CIRC-B2

P0332

0332

EC-365

KNOCK SEN/CIRC-B2

P0333

0333

EC-365

L/PRESS SOL/CIRC

P0745

0745

AT-124

LC/B SOLENOID FNCT

P1774

1774

AT-159

LC/B SOLENOID/CIRC

P1772

1772

AT-157

MAF SEN/CIRCUIT

P0101

0101

EC-195

MAF SEN/CIRCUIT

P0102

0102

EC-204

MAF SEN/CIRCUIT

P0103

0103

EC-204

MULTI CYL MISFIRE

P0300

0300

EC-355

NATS MALFUNCTION

P1610 - P1615

1610 - 1615

EC-46

Items

 (CONSULT-II screen terms)

DTC*

1

Reference page

CONSULT-II

GST*

2

ECM*

3

EC-16

INDEX FOR DTC

*1: 1st trip DTC No. is the same as DTC No.
*2: This number is prescribed by SAE J2012.
*3: In Diagnostic Test Mode II (Self-diagnostic results), this number is controlled by NISSAN.
*4: The troubleshooting for this DTC needs CONSULT-II.
*5: When the fail-safe operations for both self-diagnoses occur at the same time, the MIL illuminates.
*6: Models with ICC.

NO DTC IS DETECTED. 
FURTHER TESTING 
MAY BE REQUIRED.

P0000

0000

—

P-N POS SW/CIRCUIT

P0850

0850

EC-497

PNP SW/CIRC

P0705

0705

AT-107

PURG VOLUME CONT/V

P0443

0443

EC-404

PURG VOLUME CONT/V

P0444

0444

EC-412

PURG VOLUME CONT/V

P0445

0445

EC-412

PW ST P SEN/CIRC

P0550

0550

EC-480

SENSOR POWER/CIRC

P0643

0643

EC-492

TCC SOLENOID/CIRC

P0740

0740

AT-120

TCM

P0700

0700

AT-106

TCS C/U FUNCTN

P1211

1211

EC-512

TCS/CIRC

P1212

1212

EC-513

THERMSTAT FNCTN

P0128

0128

EC-234

TP SEN 1/CIRC

P0222

0222

EC-348

TP SEN 1/CIRC

P0223

0223

EC-348

TP SEN 2/CIRC

P0122

0122

EC-221

TP SEN 2/CIRC

P0123

0123

EC-221

TP SENSOR

P2135

2135

EC-661

TURBINE SENSOR

P0717

0717

AT-111

TW CATALYST SYS-B1

P0420

0420

EC-386

TW CATALYST SYS-B2

P0430

0430

EC-386

VC CUT/V BYPASS/V

P1491

1491

EC-570

VC/V BYPASS/V

P1490

1490

EC-563

VEH SPD SEN/CIR AT*

5

P0720

0720

AT-113

VEH SPEED SEN/CIRC*

5

P0500

0500

EC-474

VENT CONTROL VALVE

P0447

0447

EC-419

VENT CONTROL VALVE

P0448

0448

EC-430

VIAS S/V CIRC

P1800

1800

EC-617

Items

 (CONSULT-II screen terms)

DTC*

1

Reference page

CONSULT-II

GST*

2

ECM*

3

PRECAUTIONS

EC-17

C

D

E

F

G

H

I

J

K

L

M

A

EC

PRECAUTIONS

PFP:00001

Precautions for Supplemental Restraint System (SRS) “AIR BAG” and “SEAT 
BELT PRE-TENSIONER”

NBS001PY

The Supplemental Restraint System such as “AIR BAG” and “SEAT BELT PRE-TENSIONER”, used along
with a front seat belt, helps to reduce the risk or severity of injury to the driver and front passenger for certain
types of collision. This system includes seat belt switch inputs and dual stage front air bag modules. The SRS
system uses the seat belt switches to determine the front air bag deployment, and may only deploy one front
air bag, depending on the severity of a collision and whether the front occupants are belted or unbelted.
Information necessary to service the system safely is included in the SRS and SB section of this Service Man-
ual.

WARNING:

●

To avoid rendering the SRS inoperative, which could increase the risk of personal injury or death
in the event of a collision which would result in air bag inflation, all maintenance must be per-
formed by an authorized NISSAN/INFINITI dealer.

●

Improper maintenance, including incorrect removal and installation of the SRS, can lead to per-
sonal injury caused by unintentional activation of the system. For removal of Spiral Cable and Air
Bag Module, see the SRS section.

●

Do not use electrical test equipment on any circuit related to the SRS unless instructed to in this
Service Manual. SRS wiring harnesses can be identified by yellow and/or orange harnesses or
harness connectors.

On Board Diagnostic (OBD) System of Engine and A/T

NBS001PZ

The ECM has an on board diagnostic system. It will light up the malfunction indicator lamp (MIL) to warn the
driver of a malfunction causing emission deterioration.

CAUTION:

●

Be sure to turn the ignition switch OFF and disconnect the negative battery terminal before any
repair or inspection work. The open/short circuit of related switches, sensors, solenoid valves,
etc. will cause the MIL to light up.

●

Be sure to connect and lock the connectors securely after work. A loose (unlocked) connector will
cause the MIL to light up due to the open circuit. (Be sure the connector is free from water, grease,
dirt, bent terminals, etc.)

●

Certain systems and components, especially those related to OBD, may use a new style slide-
locking type harness connector. For description and how to disconnect, refer to 

PG-60, "HAR-

NESS CONNECTOR"

 .

●

Be sure to route and secure the harnesses properly after work. The interference of the harness
with a bracket, etc. may cause the MIL to light up due to the short circuit.

●

Be sure to connect rubber tubes properly after work. A misconnected or disconnected rubber tube
may cause the MIL to light up due to the malfunction of the EVAP system or fuel injection system,
etc.

●

Be sure to erase the unnecessary malfunction information (repairs completed) from the ECM and
TCM (Transmission control module) before returning the vehicle to the customer.

Precaution

NBS001Q0

●

Always use a 12 volt battery as power source.

●

Do not attempt to disconnect battery cables while engine is
running.

●

Before connecting or disconnecting the ECM harness con-
nector, turn ignition switch OFF and disconnect battery
ground cable. Failure to do so may damage the ECM
because battery voltage is applied to ECM even if ignition
switch is turned OFF.

●

Before removing parts, turn ignition switch OFF and then
disconnect battery ground cable.

SEF289H

EC-18

PRECAUTIONS

●

Do not disassemble ECM.

●

If a battery terminal is disconnected, the memory will return
to the ECM value.
The ECM will now start to self-control at its initial value.
Engine operation can vary slightly when the terminal is dis-
connected. However, this is not an indication of a malfunc-
tion. Do not replace parts because of a slight variation.

●

If the battery is disconnected, the following emission-
related diagnostic information will be lost within 24 hours.

–

Diagnostic trouble codes

–

1st trip diagnostic trouble codes

–

Freeze frame data

–

1st trip freeze frame data

–

System readiness test (SRT) codes

–

Test values

●

When connecting ECM harness connector, fasten it
securely with a lever as far as it will go as shown in the fig-
ure.

●

When connecting or disconnecting pin connectors into or
from ECM, take care not to damage pin terminals (bend or
break).
Make sure that there are not any bends or breaks on ECM
pin terminal, when connecting pin connectors.

●

Securely connect ECM harness connectors.
A poor connection can cause an extremely high (surge)
voltage to develop in coil and condenser, thus resulting in
damage to ICs.

●

Keep engine control system harness at least 10 cm (4 in)
away from adjacent harness, to prevent engine control sys-
tem malfunctions due to receiving external noise, degraded
operation of ICs, etc.

●

Keep engine control system parts and harness dry.

●

Before replacing ECM, perform ECM Terminals and Refer-
ence Value inspection and make sure ECM functions prop-
erly. Refer to 

EC-105, "ECM Terminals and Reference Value"

.

●

Handle mass air flow sensor carefully to avoid damage.

●

Do not disassemble mass air flow sensor.

●

Do not clean mass air flow sensor with any type of deter-
gent.

●

Do not disassemble electric throttle control actuator.

●

Even a slight leak in the air intake system can cause seri-
ous incidents.

●

Do not shock or jar the camshaft position sensor (PHASE), crankshaft position sensor (POS).

PBIB1164E

SEC406D

PBIB0090E

MEF040D