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
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
.
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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EC
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
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