Infiniti G35 (V35). Manual — part 291
POSITIVE CRANKCASE VENTILATION
EC-45
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EC
PCV VALVE VENTILATION HOSE
1.
Check hoses and hose connections for leaks.
2.
Disconnect all hoses and clean with compressed air. If any hose
cannot be freed of obstructions, replace.
S-ET277
EC-46
IVIS (INFINITI VEHICLE IMMOBILIZER SYSTEM-NATS)
IVIS (INFINITI VEHICLE IMMOBILIZER SYSTEM-NATS)
PFP:28591
Description
NBS000MV
●
If the security indicator lights up with the ignition switch in
the ON position or “NATS MALFUNCTION” is displayed on
“SELF-DIAG RESULTS” screen, perform self-diagnostic
results mode with CONSULT-II using NATS program card.
Refer to
BL-214, "IVIS (INFINITI VEHICLE IMMOBILIZER
.
●
Confirm no self-diagnostic results of IVIS (NATS) is dis-
played before touching “ERASE” in “SELF-DIAG RESULTS”
mode with CONSULT-II.
●
When replacing ECM, initialization of IVIS (NATS) system
and registration of all IVIS (NATS) ignition key IDs must be
carried out with CONSULT-II 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-II Operation Manual,
IVIS/NVIS.
SEF543X
ON BOARD DIAGNOSTIC (OBD) SYSTEM
EC-47
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EC
ON BOARD DIAGNOSTIC (OBD) SYSTEM
PFP:00028
Introduction
NBS000MW
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
Two Trip Detection Logic
NBS000MX
When a malfunction is detected for the first 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 status
SRT code
Test value
CONSULT-II
×
×
×
×
×
×
—
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 cata-
lyst damage) — DTC: P0300 -
P0306 is being detected
×
—
—
—
—
—
×
—
Misfire (Possible three way cata-
lyst damage) — DTC: P0300 -
P0306 is being detected
—
—
×
—
—
×
—
—
One trip detection diagnoses
(Refer to
RELATED DIAGNOSTIC INFOR-
MATION ITEMS"
.)
—
×
—
—
×
—
—
—
Except above
—
—
—
×
—
×
×
—
EC-48
ON BOARD DIAGNOSTIC (OBD) SYSTEM
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
NBS000MY
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-II screen terms)
DTC*
1
SRT code
Test value/
Test limit
(GST only)
Trip
MIL lighting
up
Reference
page
CONSULT-II
GST*
2
ECM*
3
CAN COMM CIRCUIT
U1000
1000*
5
—
—
1 (A/T)
×
2 (M/T)
—
CAN COMM CIRCUIT
U1001
1001*
5
—
—
2
—
CONTROL UNIT(CAN)
U1010
1010
—
—
1 (A/T)
×
2 (M/T)
—
NO DTC IS DETECTED.
FURTHER TESTING
MAY BE REQUIRED.
P0000
0000
—
—
—
Flashing*
7
INT/V TIM CONT-B1
P0011
0011
—
—
2
×
EXH/V TIM CONT-B1*
8
P0014
0014
—
—
2
×
INT/V TIM CONT-B2
P0021
0021
—
—
2
×
EXH/V TIM CONT-B2*
8
P0024
0024
—
—
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
×
EX V/T MGT/RTDR-B1*
8
P0078
0078
—
—
2
×
INT/V TIM V/CIR-B2
P0081
0081
—
—
2
×
EX V/T MGT/RTDR-B2*
8
P0084
0084
—
—
2
×
MAF SEN/CIRCUIT
P0101
0101
—
—
2
×
MAF SEN/CIRCUIT
P0102
0102
—
—
1
×
MAF SEN/CIRCUIT
P0103
0103
—
—
1
×
IAT SEN/CIRCUIT
P0112
0112
—
—
2
×
IAT SEN/CIRCUIT
P0113
0113
—
—
2
×
ECT SEN/CIRC
P0117
0117
—
—
1
×
ECT SEN/CIRC
P0118
0118
—
—
1
×
TP SEN 2/CIRC
P0122
0122
—
—
1
×
TP SEN 2/CIRC
P0123
0123
—
—
1
×
ECT SENSOR
P0125
0125
—
—
2
×
IAT SENSOR
P0127
0127
—
—
2
×
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