2006 INFINITI M35 Factory Service Manual

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Page 2305 of 5621

INFINITI M35 2006 Factory Service Manual EC-762
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POSITIVE CRANKCASE VENTILATION
Revision: 2006 January2006 M35/M45
PCV VALVE VENTILATION HOSE
1. Check hoses and hose connections for leaks.
2. Disconnect all hoses and clean with compr

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INFINITI M35 2006 Factory Service Manual IVIS (INFINITI VEHICLE IMMOBILIZER SYSTEM-NATS)
EC-763
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Revision: 2006 January2006 M35/M45
IVIS (INFINITI VEHICLE IMMOBILIZER SYSTEM-NATS)PFP:28591
DescriptionNBS005A

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INFINITI M35 2006 Factory Service Manual EC-764
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ON BOARD DIAGNOSTIC (OBD) SYSTEM
Revision: 2006 January2006 M35/M45
ON BOARD DIAGNOSTIC (OBD) SYSTEMPFP:00028
IntroductionNBS005A1
The ECM has an on board diagnostic system, which dete

EC-764
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ON BOARD DIAGNOSTIC (OBD) SYSTEM
Revision: 2006 January2006 M35/M45
ON BOARD DIAGNOSTIC (OBD) SYSTEMPFP:00028
IntroductionNBS005A1
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 EC-819,
"Fail-Safe Chart" .)
Two Trip Detection LogicNBS005A2
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 DTCFreeze
Frame data1st trip Freeze
Frame dataSRT code SRT status Test value
CONSULT-II
—
GST
—
ECM*— — ——
ItemsMIL DTC 1st trip DTC
1st trip 2nd trip
1st trip
displaying2nd trip
displaying1st trip
displaying2nd trip
display-
ing BlinkingLighting
upBlinkingLighting
up
Misfire (Possible three way cata-
lyst damage) — DTC: P0300 -
P0308 is being detected
———— ——
Misfire (Possible three way cata-
lyst damage) — DTC: P0300 -
P0308 is being detected——
————
One trip detection diagnoses
(Refer to EC-765, "
EMISSION-
RELATED DIAGNOSTIC INFOR-
MATION ITEMS" .)—
—————
Except above — — —
——

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INFINITI M35 2006 Factory Service Manual ON BOARD DIAGNOSTIC (OBD) SYSTEM
EC-765
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Revision: 2006 January2006 M35/M45
Therefore, when electrical controlled throttle and part of ECM related diagnoses are conti

ON BOARD DIAGNOSTIC (OBD) SYSTEM
EC-765
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Revision: 2006 January2006 M35/M45
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 InformationNBS005A3
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 codeTest value/
Test limit
(GST only)Trip MILReference
page CONSULT-II
GST*
2ECM*3
CAN COMM CIRCUIT U1000
1000*4—— 1EC-886
CAN COMM CIRCUIT U1001
1001*4—— 2 —EC-886
CONTROL UNIT(CAN) U1010 1010 — — 1EC-889
NO DTC IS DETECTED.
FURTHER TESTING
MAY BE REQUIRED.P0000 0000———
Flashing*8—
INT/V TIM CONT-B1 P0011 0011 — — 2
EC-891
INT/V TIM CONT-B2 P0021 0021 — — 2EC-891
A/F SEN1 HTR (B1) P0031 0031 —2EC-904
A/F SEN1 HTR (B1) P0032 0032 —2EC-904
HO2S2 HTR (B1) P0037 0037 —2EC-911
HO2S2 HTR (B1) P0038 0038 —2EC-911
A/F SEN1 HTR (B2) P0051 0051 —2EC-904
A/F SEN1 HTR (B2) P0052 0052 —2EC-904
HO2S2 HTR (B2) P0057 0057 —2EC-911
HO2S2 HTR (B2) P0058 0058 —2EC-911
INT/V TIM V/CIR-B1 P0075 0075 — — 2EC-920
INT/V TIM V/CIR-B2 P0081 0081 — — 2EC-920
MAF SEN/CIRCUIT P0101 0101 — — 2EC-927
MAF SEN/CIRCUIT P0102 0102 — — 1EC-936
MAF SEN/CIRCUIT P0103 0103 — — 1EC-936
IAT SEN/CIRCUIT P0112 0112 — — 2EC-943
IAT SEN/CIRCUIT P0113 0113 — — 2EC-943
ECT SEN/CIRC P0117 0117 — — 1EC-948
ECT SEN/CIRC P0118 0118 — — 1EC-948
TP SEN 2/CIRC P0122 0122 — — 1EC-954
TP SEN 2/CIRC P0123 0123 — — 1EC-954
ECT SENSOR P0125 0125 — — 1EC-961
IAT SENSOR P0127 0127 — — 2EC-964
THERMSTAT FNCTN P0128 0128 — — 2EC-967
A/F SENSOR1 (B1) P0130 0130 —2EC-969
A/F SENSOR1 (B1) P0131 0131 —2EC-979
A/F SENSOR1 (B1) P0132 0132 —2EC-988
A/F SENSOR1 (B1) P0133 01332EC-997
HO2S2 (B1) P0137 01372EC-1009

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INFINITI M35 2006 Factory Service Manual EC-766
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ON BOARD DIAGNOSTIC (OBD) SYSTEM
Revision: 2006 January2006 M35/M45
HO2S2 (B1) P0138 01382EC-1020
HO2S2 (B1) P0139 01392EC-1033
A/F SENSOR1 (B2) P0150 0150 —2EC-969
A/F SENSOR1 (B2)

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INFINITI M35 2006 Factory Service Manual ON BOARD DIAGNOSTIC (OBD) SYSTEM
EC-767
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Revision: 2006 January2006 M35/M45EVAP SYS PRES SEN P0451 0451 — — 2EC-1160
EVAP SYS PRES SEN P0452 0452 — — 2EC-1163

ON BOARD DIAGNOSTIC (OBD) SYSTEM
EC-767
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Revision: 2006 January2006 M35/M45EVAP SYS PRES SEN P0451 0451 — — 2EC-1160
EVAP SYS PRES SEN P0452 0452 — — 2EC-1163
EVAP SYS PRES SEN P0453 0453 — — 2EC-1170
EVAP GROSS LEAK P0455 0455 — — 2EC-1178
EVAP VERY SML LEAK P0456 0456*72EC-1185
FUEL LEV SEN SLOSH P0460 0460 — — 2EC-1194
FUEL LEVEL SENSOR P0461 0461 — — 2EC-1196
FUEL LEVL SEN/CIRC P0462 0462 — — 2EC-1198
FUEL LEVL SEN/CIRC P0463 0463 — — 2EC-1198
VEH SPEED SEN/CIRC*5P0500 0500 — — 2EC-1200
ISC SYSTEM P0506 0506 — — 2EC-1202
ISC SYSTEM P0507 0507 — — 2EC-1204
PW ST P SEN/CIRC P0550 0550 — — 2 —EC-1206
ECM BACK UP/CIRCUIT P0603 0603 — — 2EC-1211
ECM P0605 0605 — — 1 or 2 or —EC-1215
SENSOR POWER/CIRC P0643 0643 — — 1EC-1218
TCM P0700 0700 — — 1AT- 11 2
PNP SW/CIRC P0705 0705 — — 2AT- 11 3
ATF TEMP SEN/CIRC P0710 0710 — — 2AT-135
TURBINE SENSOR P0717 0717 — — 2AT- 11 7
VEH SPD SEN/CIR AT*5P0720 0720 — — 2AT- 11 9
TCC SOLENOID/CIRC P0740 0740 — — 2AT-126
A/T TCC S/V FNCTN P0744 0744 — — 2AT-128
L/PRESS SOL/CIRC P0745 0745 — — 2AT-130
P-N POS SW/CIRCUIT P0850 0850 — — 2EC-1223
INTK TIM S/CIRC-B1 P1140 1140 — — 2EC-1228
INTK TIM S/CIRC-B2 P1145 1145 — — 2EC-1228
CLOSED LOOP-B1 P1148 1148 — — 1EC-1236
CLOSED LOOP-B2 P1168 1168 — — 1EC-1236
TCS C/U FUNCTN P1211 1211 — — 2 —EC-1237
TCS/CIRC P1212 1212 — — 2 —EC-1238
ENG OVER TEMP P1217 1217 — — 1EC-1239
FPCM/CIRCUIT P1220 1220 — — 2EC-1251
CTP LEARNING P1225 1225 — — 2 —EC-1259
CTP LEARNING P1226 1226 — — 2 —EC-1261
BAT CURRENT SENSOR P1550 1550 — — 2 —EC-1263
BAT CURRENT SENSOR P1551 1551 — — 2 —EC-1269
BAT CURRENT SENSOR P1552 1552 — — 2 —EC-1269
BAT CURRENT SENSOR P1553 1553 — — 2 —EC-1275
BAT CURRENT SENSOR P1554 1554 — — 2 —EC-1281
Items
(CONSULT-II screen terms)DTC*
1
SRT codeTest value/
Test limit
(GST only)Trip MILReference
page CONSULT-II
GST*
2ECM*3

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INFINITI M35 2006 Factory Service Manual EC-768
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ON BOARD DIAGNOSTIC (OBD) SYSTEM
Revision: 2006 January2006 M35/M45
ASCD SW P1564 1564 — — 1 —EC-1287

(Models
with ICC)
EC-1294

(Models
with ASCD)
ICC COMMAND VALUE*
6P1568

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INFINITI M35 2006 Factory Service Manual ON BOARD DIAGNOSTIC (OBD) SYSTEM
EC-769
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*1: 1st trip DTC No. is the same as DTC No.
*2: This number is prescribed by SAE J2012.
*3

ON BOARD DIAGNOSTIC (OBD) SYSTEM
EC-769
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*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.
*7: SRT code will not be set if the self-diagnostic result is NG.
*8: When the ECM is in the mode of displaying SRT status, MIL may flash. For the details, refer to EC-773, "
How to Display SRT Status"
.
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 EC-778, "
HOW
TO ERASE EMISSION-RELATED DIAGNOSTIC INFORMATION" .
For malfunctions in which 1st trip DTCs are displayed, refer to EC-765, "
EMISSION-RELATED DIAGNOSTIC
INFORMATION ITEMS" . These items are required by legal regulations to continuously monitor the system/
component. In addition, the items monitored non-continuously are also displayed on CONSULT-II.
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-812, "
WORK FLOW" . Then perform DTC Con-
firmation Procedure or Overall Function Check to try to duplicate the malfunction. If the malfunction is dupli-
cated, 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-II
With GST
CONSULT-II or GST (Generic Scan Tool) Examples: P0340, P0850, P11 4 8 , e t c .
These DTCs are prescribed by SAE J2012.
(CONSULT-II 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-II can identify malfunction status as shown below. Therefore, using CONSULT-II (if
available) is recommended.
A sample of CONSULT-II display for DTC and 1st trip DTC is shown below. DTC or 1st trip DTC of a malfunc-
tion is displayed in SELF-DIAGNOSTIC RESULTS mode of CONSULT-II. 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].

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