Infiniti G35 (V35). Manual - part 313

TROUBLE DIAGNOSIS

EC-133

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Operation

1.

“AUTO TRIG”

●

While trying to detect the DTC/1st trip DTC by performing the DTC Confirmation Procedure, be sure to
select to “DATA MONITOR (AUTO TRIG)” mode. You can confirm the malfunction at the moment it is
detected.

●

While narrowing down the possible causes, CONSULT-II should be set in “DATA MONITOR (AUTO
TRIG)” mode, especially in case the incident is intermittent.
When you are inspecting the circuit by gently shaking (or twisting) the suspicious connectors, compo-
nents and harness in the DTC Confirmation Procedure, the moment a malfunction is found the DTC/1st
trip DTC will be displayed. (Refer to INCIDENT SIMULATION TESTS in 

GI-27, "How to Perform Effi-

cient Diagnosis for an Electrical Incident"

 .)

2.

“MANU TRIG”

●

If the malfunction is displayed as soon as “DATA MONITOR” is selected, reset CONSULT-II to “MANU
TRIG”. By selecting “MANU TRIG” you can monitor and store the data. The data can be utilized for fur-
ther diagnosis, such as a comparison with the value for the normal operating condition.

Generic Scan Tool (GST) Function

NBS000NL

DESCRIPTION

Generic Scan Tool (OBDII scan tool) complying with SAE J1978 has
8 different functions explained below.
ISO9141 is used as the protocol.
The name GST or Generic Scan Tool is used in this service manual.

PBIB0197E

SEF139P

EC-134

TROUBLE DIAGNOSIS

FUNCTION

INSPECTION PROCEDURE

1.

Turn ignition switch OFF.

2.

Connect GST to data link connector, which is located under LH
dash panel near the hood opener handle.

Diagnostic test mode

Function

Service $01

READINESS TESTS

This diagnostic service gains access to current emission-related data values, including 
analog inputs and outputs, digital inputs and outputs, and system status information.

Service $02

(FREEZE DATA)

This diagnostic service gains access to emission-related data value which were stored by 
ECM during the freeze frame. For details, refer to 

EC-124, "Freeze Frame Data and 1st 

Trip Freeze Frame Data"

 .

Service $03

DTCs

This diagnostic service gains access to emission-related power train trouble codes which 
were stored by ECM.

Service $04

CLEAR DIAG INFO

This diagnostic service can clear all emission-related diagnostic information. This 
includes:

●

Clear number of diagnostic trouble codes (Service $01)

●

Clear diagnostic trouble codes (Service $03)

●

Clear trouble code for freeze frame data (Service $01)

●

Clear freeze frame data (Service $02)

●

Reset status of system monitoring test (Service $01)

●

Clear on board monitoring test results (Service $06 and $07)

Service $06

(ON BOARD TESTS)

This diagnostic service accesses the results of on board diagnostic monitoring tests of 
specific components/systems that are not continuously monitored.

Service $07

(ON BOARD TESTS)

This diagnostic service enables the off board test drive to obtain test results for emission-
related powertrain components/systems that are continuously monitored during normal 
driving conditions.

Service $08

—

This diagnostic service can close EVAP system in ignition switch ON position (Engine 
stopped). When this diagnostic service is performed, EVAP canister vent control valve 
can be closed.
In the following conditions, this mode cannot function.

●

Low ambient temperature

●

Low battery voltage

●

Engine running

●

Ignition switch OFF

●

Low fuel temperature

●

Too much pressure is applied to EVAP system

Service $09

(CALIBRATION ID)

This diagnostic service enables the off-board test device to request specific vehicle infor-
mation such as Vehicle Identification Number (VIN) and Calibration IDs.

PBIB2546E

TROUBLE DIAGNOSIS

EC-135

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3.

Turn ignition switch ON.

4.

Enter the program according to instruction on the screen or in
the operation manual.
(*: Regarding GST screens in this section, sample screens are
shown.)

5.

Perform each diagnostic mode according to each service proce-
dure.
For further information, see the GST Operation Manual of
the tool maker.

CONSULT-II Reference Value in Data Monitor

NBS000NM

Remarks:

●

 Specification data are reference values.

●

 Specification data are output/input values which are detected or supplied by the ECM at the connector.

* Specification data may not be directly related to their components signals/values/operations.
i.e. Adjust ignition timing with a timing light before monitoring IGN TIMING, because the monitor may show the specification data in

spite of the ignition timing not being adjusted to the specification data. This IGN TIMING monitors the data calculated by the ECM
according to the signals input from the camshaft position sensor and other ignition timing related sensors.

SEF398S

SEF416S

MONITOR ITEM

CONDITION

SPECIFICATION

ENG SPEED

●

Run engine and compare CONSULT-II value with the tachometer indication.

Almost the same speed as the 
tachometer indication

MAS A/F SE-B1

See 

EC-141, "TROUBLE DIAGNOSIS - SPECIFICATION VALUE"

 .

B/FUEL SCHDL

See 

EC-141, "TROUBLE DIAGNOSIS - SPECIFICATION VALUE"

 .

A/F ALPHA-B1
A/F ALPHA-B2

See 

EC-141, "TROUBLE DIAGNOSIS - SPECIFICATION VALUE"

 .

COOLAN TEMP/S

●

Engine: After warming up

More than 70

°

C (158

°

F)

A/F SEN1 (B1)
A/F SEN1 (B2)

●

Engine: After warming up

Maintaining engine speed at 2,000 rpm

Fluctuates around 1.5V

HO2S2 (B1)
HO2S2 (B2)

●

Revving engine from idle to 3,000 rpm quickly after the following conditions 
are met.

–

Engine: After warming up

–

Keeping the engine speed between 3,500 rpm and 4,000 rpm for 1 minute 
and idle for 1 minute under no load.

0 - 0.3V 

←→

 Approx. 0.6 - 

1.0V

HO2S2 MNTR(B1)
HO2S2 MNTR(B2)

LEAN 

←→

 RICH

VHCL SPEED SE

●

Turn drive wheels and compare CONSULT-II value with the speedometer 
indication.

Almost the same speed as the 
speedometer indication

BATTERY VOLT

●

Ignition switch: ON (Engine stopped)

11 - 14V

ACCEL SEN 1

●

Ignition switch: ON
(Engine stopped)

Accelerator pedal: Fully released

0.5 - 1.0V

Accelerator pedal: Fully depressed

4.0 - 4.8V

ACCEL SEN 2*

1

●

Ignition switch: ON
(Engine stopped)

Accelerator pedal: Fully released

0.3 - 1.2V

Accelerator pedal: Fully depressed

3.9 - 4.8V

THRTL SEN 1

THRTL SEN 2*

1

●

Ignition switch: ON
(Engine stopped)

●

Shift lever: D (A/T) or 1st (M/T)

Accelerator pedal: Fully released

More than 0.36V

Accelerator pedal: Fully depressed

Less than 4.75V

EC-136

TROUBLE DIAGNOSIS

EVAP SYS PRES

●

Ignition switch: ON

Approx. 1.8 - 4.8V

START SIGNAL

●

Ignition switch: ON 

→

 START 

→

 ON

OFF 

→

 ON 

→

 OFF

CLSD THL POS

●

Ignition switch: ON
(Engine stopped)

Accelerator pedal: Fully released

ON

Accelerator pedal: Slightly depressed

OFF

AIR COND SIG

●

Engine: After warming up, idle 
the engine

Air conditioner switch: OFF

OFF

Air conditioner switch: ON
(Compressor operates.)

ON

P/N POSI SW

●

Ignition switch: ON

Shift lever: P or N (A/T), Neutral (M/T)

ON

Shift lever: Except above position

OFF

PW/ST SIGNAL

●

Engine: After warming up, idle 
the engine

Steering wheel: Not being turned

OFF

Steering wheel: Being turned

ON

LOAD SIGNAL

●

Ignition switch: ON

Rear window defogger switch is ON 
and/or lighting switch is in 2nd

ON

Rear window defogger switch is OFF 
and lighting switch is OFF

OFF

IGNITION SW

●

Ignition switch: ON 

→

 OFF 

→

 ON

ON 

→

 OFF 

→

 ON

HEATER FAN SW

●

Engine: After warming up, idle 
the engine

Heater fan: Operating

ON

Heater fan: Not operating

OFF

BRAKE SW

●

Ignition switch: ON

Brake pedal: Fully released

OFF

Brake pedal: Slightly depressed

ON

INJ PULSE-B1
INJ PULSE-B2

●

Engine: After warming up

●

Shift lever: P or N (A/T), Neutral 
(M/T)

●

Air conditioner switch: OFF

●

No load

Idle

2.0 - 3.0 msec

2,000 rpm

1.9 - 2.9 msec

IGN TIMING

●

Engine: After warming up

●

Shift lever: P or N (A/T), Neutral 
(M/T)

●

Air conditioner switch: OFF

●

No load

Idle

13

°

 - 18

°

 BTDC

2,000 rpm

25

°

 - 45

°

 BTDC

CAL/LD VALUE

●

Engine: After warming up

●

Shift lever: P or N (A/T), Neutral 
(M/T)

●

Air conditioner switch: OFF

●

No load

Idle

5% - 35%

2,500 rpm

5% - 35%

MASS AIRFLOW

●

Engine: After warming up

●

Shift lever: P or N (A/T), Neutral 
(M/T)

●

Air conditioner switch: OFF

●

No load

Idle

2.0 - 6.0 g·m/s

2,500 rpm

7.0 - 20.0 g·m/s

PURG VOL C/V

●

Engine: After warming up

●

Shift lever: P or N (A/T), Neutral 
(M/T)

●

Air conditioner switch: OFF

●

No load

Idle
(Accelerator pedal is not depressed 
even slightly, after engine starting)

0%

2,000 rpm

—

MONITOR ITEM

CONDITION

SPECIFICATION