sensor NISSAN 350Z 2007 Z33 Engine Control Owner's Guide
[x] Cancel search | Manufacturer: NISSAN, Model Year: 2007, Model line: 350Z, Model: NISSAN 350Z 2007 Z33Pages: 720
Page 44 of 720
EC-44
POSITIVE CRANKCASE VENTILATION
Revision: 2006 November2007 350Z
POSITIVE CRANKCASE VENTILATIONPFP:11810
DescriptionNBS0002W
SYSTEM DESCRIPTION
This system returns blow-by gas to the intake manifold.
The positive crankcase ventilation (PCV) valve is provided to conduct crankcase blow-by gas to the intake
manifold. During partial throttle operation of the engine, the intake manifold sucks the blow-by gas through the
PCV valve. Normally, the capacity of the valve is sufficient to handle any blow-by and a small amount of venti-
lating air. The ventilating air is then drawn from the air inlet tubes into the crankcase. In this process the air
passes through the hose connecting air inlet tubes to rocker cover. Under full-throttle condition, the manifold
vacuum is insufficient to draw the blow-by flow through the valve. The flow goes through the hose connection
in the reverse direction.
On vehicles with an excessively high blow-by, the valve does not
meet the requirement. This is because some of the flow will go
through the hose connection to the air inlet tubes under all condi-
tions.
1. PCV valve 2. Electric throttle control actuator 3. Mass air flow sensor
A. Normal condition B. Hi-load condition
:Fresh air
:Blow-by air
PBIB3536E
PBIB1588E
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ON BOARD DIAGNOSTIC (OBD) SYSTEM
EC-47
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Revision: 2006 November2007 350Z
ON BOARD DIAGNOSTIC (OBD) SYSTEMPFP:00028
IntroductionNBS0002Z
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-89, "
Fail-safe Chart" .)
Two Trip Detection LogicNBS00030
When a malfunction is detected for the 1st 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 status SRT code Test value
CONSULT-III××××××—
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 -
P0306 is being detected×———— —×—
Misfire (Possible three way cata-
lyst damage) — DTC: P0300 -
P0306 is being detected——×——×——
One trip detection diagnoses
(Refer to EC-48, "
EMISSION-
RELATED DIAGNOSTIC INFOR-
MATION ITEMS" .)—×——×———
Except above — — —×—××—
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ON BOARD DIAGNOSTIC (OBD) SYSTEM
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Revision: 2006 November2007 350ZECT SENSOR P0125 0125 — — 2×EC-239
IAT SENSOR-B1 P0127 0127 — — 2×EC-243
THERMSTAT FNCTN P0128 0128 — — 2×EC-246
A/F SENSOR1 (B1) P0130 0130 —×2×EC-248
A/F SENSOR1 (B1) P0131 0131 —×2×EC-257
A/F SENSOR1 (B1) P0132 0132 —×2×EC-266
A/F SENSOR1 (B1) P0133 0133××2×EC-275
HO2S2 (B1) P0137 0137××2×EC-287
HO2S2 (B1) P0138 0138××2×EC-298
HO2S2 (B1) P0139 0139××2×EC-313
A/F SENSOR1 (B2) P0150 0150 —×2×EC-248
A/F SENSOR1 (B2) P0151 0151 —×2×EC-257
A/F SENSOR1 (B2) P0152 0152 —×2×EC-266
A/F SENSOR1 (B2) P0153 0153××2×EC-275
HO2S2 (B2) P0157 0157××2×EC-287
HO2S2 (B2) P0158 0158××2×EC-298
HO2S2 (B2) P0159 0159××2×EC-313
FUEL SYS-LEAN-B1 P0171 0171 — — 2×EC-324
FUEL SYS-RICH-B1 P0172 0172 — — 2×EC-334
FUEL SYS-LEAN-B2 P0174 0174 — — 2×EC-324
FUEL SYS-RICH-B2 P0175 0175 — — 2×EC-334
FTT SENSOR P0181 0181 — — 2×EC-344
FTT SEN/CIRCUIT P0182 0182 — — 2×EC-348
FTT SEN/CIRCUIT P0183 0183 — — 2×EC-348
EOT SENSOR P0196 0196 — — 2×EC-352
EOT SEN/CIRCUIT P0197 0197 — — 2×EC-239
EOT SEN/CIRCUIT P0198 0198 — — 2×EC-239
TP SEN 1/CIRC-B1 P0222 0222 — — 1×EC-361
TP SEN 1/CIRC-B1 P0223 0223 — — 1×EC-361
TP SEN 2/CIRC-B2 P0227 0227 — — 1×EC-229
TP SEN 2/CIRC-B2 P0228 0228 — — 1×EC-229
MULTI CYL MISFIRE P0300 0300 — — 2×EC-371
CYL 1 MISFIRE P0301 0301 — — 2×EC-371
CYL 2 MISFIRE P0302 0302 — — 2×EC-371
CYL 3 MISFIRE P0303 0303 — — 2×EC-371
CYL 4 MISFIRE P0304 0304 — — 2×EC-371
CYL 5 MISFIRE P0305 0305 — — 2×EC-371
CYL 6 MISFIRE P0306 0306 — — 2×EC-371
KNOCK SEN/CIRC-B1 P0327 0327 — — 2 —EC-379
KNOCK SEN/CIRC-B1 P0328 0328 — — 2 —EC-379
KNOCK SEN/CIRC-B2 P0332 0332 — — 2 —EC-379
KNOCK SEN/CIRC-B2 P0333 0333 — — 2 —EC-379
Items
(CONSULT-III screen terms)DTC*
1
SRT codeTest value/
Test limit
(GST only)TripMIL lighting
upReference
page CONSULT-III
GST*
2ECM*3
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EC-50
ON BOARD DIAGNOSTIC (OBD) SYSTEM
Revision: 2006 November2007 350Z
CKP SEN/CIRCUIT P0335 0335 — — 2×EC-386
CMP SEN/CIRC-B1 P0340 0340 — — 2×EC-394
CMP SEN/CIRC-B2 P0345 0345 — — 2×EC-394
TW CATALYST SYS-B1 P0420 0420××2×EC-406
TW CATALYST SYS-B2 P0430 0430××2×EC-406
EVAP PURG FLOW/MON P0441 0441××2×EC-411
EVAP SMALL LEAK P0442 0442××2×EC-416
PURG VOLUME CONT/V P0443 0443 — — 2×EC-423
PURG VOLUME CONT/V P0444 0444 — — 2×EC-431
PURG VOLUME CONT/V P0445 0445 — — 2×EC-431
VENT CONTROL VALVE P0447 0447 — — 2×EC-437
VENT CONTROL VALVE P0448 0448 — — 2×EC-444
EVAP SYS PRES SEN P0451 0451 — — 2×EC-450
EVAP SYS PRES SEN P0452 0452 — — 2×EC-456
EVAP SYS PRES SEN P0453 0453 — — 2×EC-465
EVAP GROSS LEAK P0455 0455 — — 2×EC-475
EVAP VERY SML LEAK P0456 0456
×*4×2×EC-482
FUEL LEV SEN SLOSH P0460 0460 — — 2×EC-490
FUEL LEVEL SENSOR P0461 0461 — — 2×EC-492
FUEL LEVL SEN/CIRC P0462 0462 — — 2×EC-494
FUEL LEVL SEN/CIRC P0463 0463 — — 2×EC-494
VEH SPEED SEN/CIRC*6P0500 0500 — — 2×EC-496
ISC SYSTEM P0506 0506 — — 2×EC-498
ISC SYSTEM P0507 0507 — — 2×EC-500
PW ST P SEN/CIRC P0550 0550 — — 2 —EC-502
ECM BACK UP/CIRCUIT P0603 0603 — — 2×EC-508
ECM P0605 0605 — — 1 or 2× or —EC-512
SENSOR POWER/CIRC P0643 0643 — — 1×EC-514
TCM P0700 0700 — — 1×AT- 1 0 1
PNP SW/CIRC P0705 0705 — — 2×AT- 1 0 2
ATF TEMP SEN/CIRC P0710 0710 — — 2×AT- 1 3 4
TURBINE SENSOR P0717 0717 — — 2×AT- 11 3
VEH SPD SEN/CIR AT*6P0720 0720 — — 2×AT- 1 0 8
A/T 1ST GR FNCTN P0731 0731 — — 2×AT- 11 5
A/T 2ND GR FNCTN P0732 0732 — — 2×AT- 11 7
A/T 3RD GR FNCTN P0733 0733 — — 2×AT- 11 9
A/T 4TH GR FNCTN P0734 0734 — — 2×AT- 1 2 1
A/T 5TH GR FNCTN P0735 0735 — — 2×AT- 1 2 3
TCC SOLENOID/CIRC P0740 0740 — — 2×AT- 1 2 5
A/T TCC S/V FNCTN P0744 0744 — — 2×AT- 1 2 7
L/PRESS SOL/CIRC P0745 0745 — — 2×AT- 1 2 9
P-N POS SW/CIRCUIT P0850 0850 — — 2×EC-520
Items
(CONSULT-III screen terms)DTC*
1
SRT codeTest value/
Te s t l i m i t
(GST only)TripMIL lighting
upReference
page CONSULT-III
GST*
2ECM*3
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Revision: 2006 November2007 350ZEXH TIM SEN/CIR-B1 P1078 1078 — — 2×EC-528
EXH TIM SEN/CIR-B2 P1084 1084 — — 2×EC-528
CLOSED LOOP-B1 P1148 1148 — — 1×EC-540
CLOSED LOOP-B2 P1168 1168 — — 1×EC-540
TCS C/U FUNCTN P1211 1211 — — 2 —EC-541
TCS/CIRC P1212 1212 — — 2 —EC-542
ENG OVER TEMP P1217 1217 — — 1×EC-543
CTP LEARNING-B1 P1225 1225 — — 2 —EC-557
CTP LEARNING-B1 P1226 1226 — — 2 —EC-559
ETC FUNCTION/CIRC-B2 P1233 1233 — — 1×EC-561
CTP LEARNING-B2 P1234 1234 — — 2 —EC-557
CTP LEARNING-B2 P1235 1235 — — 2 —EC-559
ETC MOT-B2 P1236 1236 — — 1×EC-571
ETC ACTR-B2 P1238 1238 — — 1×EC-580
TP SENSOR-B2 P1239 1239 — — 1×EC-582
ETC MOT PWR-B2 P1290 1290 — — 1×EC-592
COLD START CONTROL P1421 1421 — — 2×EC-600
ASCD SW P1564 1564 — — 1 —EC-602
ASCD BRAKE SW P1572 1572 — — 1 —EC-610
ASCD VHL SPD SEN P1574 1574 — — 1 —EC-625
NATS MALFUNCTIONP1610 -
P16151610 - 1615 — — 2 —EC-46
IN PULY SPEED P1715 1715 — — 2 —EC-627
A/T INTERLOCK P1730 1730 — — 1×AT- 1 4 1
I/C SOLENOID/CIRC P1752 1752 — — 1×AT- 1 4 5
FR/B SOLENOID/CIRC P1757 1757 — — 1×AT- 1 4 7
D/C SOLENOID/CIRC P1762 1762 — — 1×AT- 1 4 9
HLR/C SOL/CIRC P1767 1767 — — 1×AT- 1 5 1
LC/B SOLENOID/CIRC P1772 1772 — — 1×AT- 1 5 3
LC/B SOLENOID FNCT P1774 1774 — — 1×AT- 1 5 5
BRAKE SW/CIRCUIT P1805 1805 — — 2 —EC-628
ETC MOT PWR-B1 P2100 2100 — — 1×EC-592
ETC FUNCTION/CIRC-B1 P2101 2101 — — 1×EC-561
ETC MOT PWR P2103 2103 — — 1×EC-592
ETC MOT-B1 P2118 2118 — — 1×EC-571
ETC ACTR-B1 P2119 2119 — — 1×EC-580
APP SEN 1/CIRC P2122 2122 — — 1×EC-633
APP SEN 1/CIRC P2123 2123 — — 1×EC-633
APP SEN 2/CIRC P2127 2127 — — 1×EC-641
APP SEN 2/CIRC P2128 2128 — — 1×EC-641
TP SENSOR2/CIRC-B2 P2132 2132 — — 1×EC-361
TP SENSOR2/CIRC-B2 P2133 2133 — — 1×EC-361
TP SENSOR-B1 P2135 2135 — — 1×EC-582
Items
(CONSULT-III screen terms)DTC*
1
SRT codeTest value/
Test limit
(GST only)TripMIL lighting
upReference
page CONSULT-III
GST*
2ECM*3
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EC-52
ON BOARD DIAGNOSTIC (OBD) SYSTEM
Revision: 2006 November2007 350Z
*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: SRT code will not be set if the self-diagnostic result is NG.
*5: The troubleshooting for this DTC needs CONSULT-III.
*6: When the fail-safe operations for both self-diagnoses occur, the MIL illuminates.
*7: When the ECM is in the mode of displaying SRT status, MIL may flash. For the details, refer to EC-56, "
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
results 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-61, "
HOW
TO ERASE EMISSION-RELATED DIAGNOSTIC INFORMATION" .
For malfunctions in which 1st trip DTCs are displayed, refer to EC-48, "
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-III.
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-82, "
WORK FLOW" . Then perform DTC Confir-
mation 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-III
With GST
CONSULT-III or GST (Generic Scan Tool) Examples: P0340, P0850, P1148, etc.
These DTCs are prescribed by SAE J2012.
(CONSULT-III 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-III can identify malfunction status as shown below. Therefore, using CONSULT-III (if
available) is recommended.
A sample of CONSULT-III 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-III. Time data indicates how many
times the vehicle was driven after the last detection of a DTC.
APP SENSOR P2138 2138 — — 1×EC-650
A/F SENSOR1 (B1) P2A00 2A00 —×2×EC-659
A/F SENSOR1 (B2) P2A03 2A03 —×2×EC-659
Items
(CONSULT-III screen terms)DTC*
1
SRT codeTest value/
Te s t l i m i t
(GST only)TripMIL lighting
upReference
page CONSULT-III
GST*
2ECM*3
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EC-54
ON BOARD DIAGNOSTIC (OBD) SYSTEM
Revision: 2006 November2007 350Z
*: If completion of several SRTs is required, perform driving patterns (DTC confirmation procedure), one by one based on the priority for
models with CONSULT-III.
SRT Set Timing
SRT is set as “CMPLT” after self-diagnosis has been performed one or more times. Completion of SRT is
done regardless of whether the result is OK or NG. The set timing is different between OK and NG results and
is shown in the table below.
OK: Self-diagnosis is carried out and the result is OK.
NG: Self-diagnosis is carried out and the result is NG.
—: Self-diagnosis is not carried out.
When all SRT related self-diagnoses showed OK results in a single cycle (Ignition OFF-ON-OFF), the SRT will
indicate “CMPLT”. → Case 1 above
When all SRT related self-diagnoses showed OK results through several different cycles, the SRT will indicate
“CMPLT” at the time the respective self-diagnoses have at least one OK result. → Case 2 above
If one or more SRT related self-diagnoses showed NG results in 2 consecutive cycles, the SRT will also indi-
cate “CMPLT”. → Case 3 above
The table above shows that the minimum number of cycles for setting SRT as “INCMP” is one (1) for each
self-diagnosis (Case 1 & 2) or two (2) for one of self-diagnoses (Case 3). However, in preparation for the state
emissions inspection, it is unnecessary for each self-diagnosis to be executed twice (Case 3) for the following
reasons:
The SRT will indicate “CMPLT” at the time the respective self-diagnoses have one (1) OK result.
The emissions inspection requires “CMPLT” of the SRT only with OK self-diagnosis results.
SRT item
(CONSULT-III indica-
tion)Perfor-
mance Pri-
ority*Required self-diagnostic items to set the SRT to “CMPLT”Corresponding DTC
No.
CATALYST 2 Three way catalyst function P0420, P0430
EVAP SYSTEM1 EVAP control system P0442
2 EVAP control system P0456
2 EVAP control system purge flow monitoring P0441
HO2S2 Air fuel ratio (A/F) sensor 1 P0133, P0153
Heated oxygen sensor 2 P0139, P0159
Heated oxygen sensor 2 P0137, P0157
Heated oxygen sensor 2 P0138, P0158
Self-diagnosis resultExample
DiagnosisIgnition cycle
← ON → OFF ← ON → OFF ← ON → OFF ← ON →
All OK Case 1 P0400 OK (1) — (1) OK (2) — (2)
P0402 OK (1) — (1) — (1) OK (2)
P1402 OK (1) OK (2) — (2) — (2)
SRT of EGR “CMPLT” “CMPLT” “CMPLT” “CMPLT”
Case 2 P0400 OK (1) — (1) — (1) — (1)
P0402 — (0) — (0) OK (1) — (1)
P1402 OK (1) OK (2) — (2) — (2)
SRT of EGR “INCMP” “INCMP” “CMPLT” “CMPLT”
NG exists Case 3 P0400 OK OK — —
P0402 — — — —
P1402 NG — NGNG
(Consecutive
NG)
(1st trip)
DTC1st trip DTC — 1st trip DTCDTC
(= MIL “ON”)
SRT of EGR “INCMP” “INCMP” “INCMP” “CMPLT”
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Revision: 2006 November2007 350Z
HOW TO ERASE EMISSION-RELATED DIAGNOSTIC INFORMATION
How to Erase DTC
WITH CONSULT-III
The emission related diagnostic information in the ECM can be erased by selecting “ERASE” in the “SELF-
DIAG RESULTS” mode with CONSULT-III.
If DTCs are displayed for both ECM and TCM (Transmission control module), they need to be erased individu-
ally from the ECM and TCM (Transmission control module).
NOTE:
If the DTC is not for A/T related items (see EC-8, "
INDEX FOR DTC" ), skip steps 2 through 4.
1. If the ignition switch stays ON after repair work, be sure to turn ignition switch OFF once. Wait at least 10
seconds and then turn it ON (engine stopped) again.
2. Turn CONSULT-III ON and touch “A/T”.
3. Touch “SELF-DIAG RESULTS”.
HO2SAir fuel ratio (A/F) sensor 1 (Bank 1)P0131 41H 8EH Min. 5mV
P0132 42H 0EH Max. 5mV
P2A00 43H 0EH Max. 0.002
P2A00 44H 8EH Min. 0.002
P0133 45H 8EH Min. 0.004
P0130 46H 0EH Max. 5mV
P0130 47H 8EH Min. 5mV
P0133 48H 8EH Min. 0.004
Air fuel ratio (A/F) sensor 1 (Bank 2)P0151 4CH 8FH Min. 5mV
P0152 4DH 0FH Max 5mV
P2A03 4EH 0FH Max. 0.002
P2A03 4FH 8FH Min. 0.002
P0153 50H 8FH Min. 0.004
P0150 51H 0FH Max. 5mV
P0150 52H 8FH Min. 5mV
P0153 53H 8FH Min. 0.004
Heated oxygen sensor 2 (Bank 1)P0138 1CH 06H Max. 10mV
P0139 19H 86H Min. 10mV/500 ms
P0137 1AH 86H Min. 10 mV
P0138 1BH 06H Max. 10 mV
Heated oxygen sensor 2 (Bank 2)P0158 24H 07H Max 10mV
P0159 21H 87H Min. 10 mV/500 ms
P0157 22H 87H Min. 10 mV
P0158 23H 07H Max. 10 mV
HO2S HTRAir fuel ratio (A/F) sensor 1 heater (Bank 1) P0032 57H 10H Max. 5 mV
P0031 58H 90H Max. 5 mV
Air fuel ratio (A/F) sensor 1 heater (Bank 2)P0052 59H 11H Max. 5 mV
P0051 5AH 91H Max. 5 mV
Heated oxygen sensor 2 heater (Bank 1)P0038 2DH 0AH Max. 20 mV
P0037 2EH 8AH Min. 20 mV
Heated oxygen sensor 2 heater (Bank 2)P0058 2FH 0BH Max. 20 mV
P0057 30H 8BH Min. 20 mV Item Self-diagnostic test item DTCTest value (GST display)
Test limit Conversion
TID CID
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Revision: 2006 November2007 350Z
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.
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.
MIL Flashing Without DTC
When any SRT codes are not set, MIL may flash without DTC. For the details, refer to EC-56, "How to Display
SRT Status" .
HOW TO SWITCH DIAGNOSTIC TEST MODE
NOTE:
It is better to count the time accurately with a clock.
It is impossible to switch the diagnostic mode when an accelerator pedal position sensor circuit
has a malfunction.
Always ECM returns to Diagnostic Test Mode I after ignition switch is turned OFF.
How to Set Diagnostic Test Mode II (Self-diagnostic Results)
1. Confirm that accelerator pedal is fully released, turn ignition switch ON and wait 3 seconds.
2. Repeat the following procedure quickly 5 times within 5 seconds.
a. Fully depress the accelerator pedal.
b. Fully release the accelerator pedal.
3. Wait 7 seconds, fully depress the accelerator pedal and keep it for approx. 10 seconds until the MIL starts
blinking.
Diagnostic Test
ModeKEY and ENG.
StatusFunction Explanation of Function
Mode I Ignition switch in
ON position
Engine stoppedBULB CHECK This function checks the MIL bulb for damage (blown,
open circuit, etc.).
If the MIL does not come on, check MIL circuit.
Engine running MALFUNCTION
WARNINGThis is a usual driving condition. When a malfunction is
detected twice in two consecutive driving cycles (two trip
detection logic), the MIL will light up to inform the driver
that a malfunction has been detected.
The following malfunctions will light up or blink the MIL in
the 1st trip.
Misfire (Possible three way catalyst damage)
One trip detection diagnoses
Mode II Ignition switch in
ON position
Engine stoppedSELF-DIAGNOSTIC
RESULTSThis function allows DTCs and 1st trip DTCs to be read.
Engine operating condition in fail-safe mode Engine speed will not rise more than 2,500 rpm due to the fuel cut
Page 73 of 720
BASIC SERVICE PROCEDURE
EC-73
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Revision: 2006 November2007 350Z
7. CHECK TARGET IDLE SPEED AGAIN
With CONSULT-III
1. Start engine and warm it up to normal operating temperature.
2. Read idle speed in “DATA MONITOR” mode with CONSULT-III.
Refer to EC-76, "
IDLE SPEED" .
Without CONSULT-III
1. Start engine and warm it up to normal operating temperature.
2. Check idle speed. Refer to EC-76, "
IDLE SPEED" .
OK or NG
OK >> GO TO 10.
NG >> GO TO 8.
8. DETECT MALFUNCTIONING PART
Check the following.
Check camshaft position sensor (PHASE) and circuit.
Refer to EC-394, "
DTC P0340, P0345 CMP SENSOR (PHASE)" .
Check crankshaft position sensor (POS) and circuit.
Refer to EC-386, "
DTC P0335 CKP SENSOR (POS)" .
OK or NG
OK >> GO TO 9.
NG >> 1. Repair or replace.
2. GO TO 4.
9. CHECK ECM FUNCTION
1. Substitute another known-good ECM to check ECM function. (ECM may be the cause of an incident, but
this is a rare case.)
2. Perform initialization of NVIS (NATS) system and registration of all NVIS (NATS) ignition key IDs.
Refer to BL-150, "
NVIS (NISSAN VEHICLE IMMOBILIZER SYSTEM-NATS)" .
>> GO TO 4.
10. CHECK IGNITION TIMING
1. Run engine at idle.
2. Check ignition timing with a timing light.
Refer to EC-76, "
IGNITION TIMING" .
OK or NG
OK >> GO TO 19.
NG >> GO TO 11.A/T: 650 ± 50 rpm (in P or N position)
M/T: 650 ± 50 rpm (in Neutral position)
A/T: 650 ± 50 rpm (in P or N position)
M/T: 650 ± 50 rpm (in Neutral position)
A : Timing indicator
A/T: 15 ± 5° BTDC (in P or N position)
M/T: 15 ± 5° BTDC (in Neutral position)
PBIB3530E