2007 NISSAN 350Z EC-498

EC-10
INDEX FOR DTC
Revision: 2006 November2007 350Z
P0345 0345 CMP SEN/CIRC-B2EC-394
P0420 0420 TW CATALYST SYS-B1EC-406
P0430 0430 TW CATALYST SYS-B2EC-406
P0441 0441 EVAP PURG FLOW/MONEC-411
P0442 0442 EVAP SMALL LEAKEC-416
P0443 0443 PURG VOLUME CONT/VEC-423
P0444 0444 PURG VOLUME CONT/VEC-431
P0445 0445 PURG VOLUME CONT/VEC-431
P0447 0447 VENT CONTROL VALVEEC-437
P0448 0448 VENT CONTROL VALVEEC-444
P0451 0451 EVAP SYS PRES SENEC-450
P0452 0452 EVAP SYS PRES SENEC-456
P0453 0453 EVAP SYS PRES SENEC-465
P0455 0455 EVAP GROSS LEAKEC-475
P0456 0456 EVAP VERY SML LEAKEC-482
P0460 0460 FUEL LEV SEN SLOSHEC-490
P0461 0461 FUEL LEVEL SENSOREC-492
P0462 0462 FUEL LEVL SEN/CIRCEC-494
P0463 0463 FUEL LEVL SEN/CIRCEC-494
P0500 0500 VEH SPEED SEN/CIRCEC-496
P0506 0506 ISC SYSTEMEC-498
P0507 0507 ISC SYSTEMEC-500
P0550 0550 PW ST P SEN/CIRCEC-502
P0603 0603 ECM BACK UP/CIRCUITEC-508
P0605 0605 ECMEC-512
P0643 0643 SENSOR POWER/CIRCEC-514
P0700 0700 TCMAT-101
P0705 0705 PNP SW/CIRCAT-102
P0710 0710 ATF TEMP SEN/CIRCAT-134
P0717 0717 TURBINE SENSORAT- 11 3
P0720 0720 VEH SPD SEN/CIR ATAT-108
P0731 0731 A/T 1ST GR FNCTNAT- 11 5
P0732 0732 A/T 2ND GR FNCTNAT- 11 7
P0733 0733 A/T 3RD GR FNCTNAT- 11 9
P0734 0734 A/T 4TH GR FNCTNAT-121
P0735 0735 A/T 5TH GR FNCTNAT-123
P0740 0740 TCC SOLENOID/CIRCAT-125
P0744 0744 A/T TCC S/V FNCTNAT-127
P0745 0745 L/PRESS SOL/CIRCAT-129
P0850 0850 P-N POS SW/CIRCUITEC-520
P1078 1078 EXH TIM SEN/CIR-B1EC-528
P1084 1084 EXH TIM SEN/CIR-B2EC-528
DTC*1
Items
(CONSULT-III screen terms)Reference page
CONSULT-III
GST*
2ECM*3

INDEX FOR DTC
EC-15
C
D
E
F
G
H
I
J
K
L
MA
EC
Revision: 2006 November2007 350ZEXH TIM SEN/CIR-B2 P1084 1084EC-528
EXH/V TIM CONT-B1 P0014 0014EC-160
EXH/V TIM CONT-B2 P0024 0024EC-160
FR/B SOLENOID/CIRC P1757 1757AT- 1 4 7
FTT SEN/CIRCUIT P0182 0182EC-348
FTT SEN/CIRCUIT P0183 0183EC-348
FTT SENSOR P0181 0181EC-344
FUEL LEV SEN SLOSH P0460 0460EC-490
FUEL LEVEL SENSOR P0461 0461EC-492
FUEL LEVL SEN/CIRC P0462 0462EC-494
FUEL LEVL SEN/CIRC P0463 0463EC-494
FUEL SYS-LEAN-B1 P0171 0171EC-324
FUEL SYS-LEAN-B2 P0174 0174EC-324
FUEL SYS-RICH-B1 P0172 0172EC-334
FUEL SYS-RICH-B2 P0175 0175EC-334
HLR/C SOL/CIRC P1767 1767AT- 1 5 1
HO2S2 (B1) P0137 0137EC-287
HO2S2 (B1) P0138 0138EC-298
HO2S2 (B1) P0139 0139EC-313
HO2S2 (B2) P0157 0157EC-287
HO2S2 (B2) P0158 0158EC-298
HO2S2 (B2) P0159 0159EC-313
HO2S2 HTR (B1) P0037 0037EC-173
HO2S2 HTR (B1) P0038 0038EC-173
HO2S2 HTR (B2) P0057 0057EC-173
HO2S2 HTR (B2) P0058 0058EC-173
I/C SOLENOID/CIRC P1752 1752AT- 1 4 5
IAT SEN/CIRCUIT-B1 P0112 0112EC-218
IAT SEN/CIRCUIT-B1 P0113 0113EC-218
IAT SENSOR-B1 P0127 0127EC-243
IN PULY SPEED P1715 1715EC-627
INT/V TIM CONT-B1 P0011 0011EC-156
INT/V TIM CONT-B2 P0021 0021EC-156
INT/V TIM V/CIR-B1 P0075 0075EC-183
INT/V TIM V/CIR-B2 P0081 0081EC-183
ISC SYSTEM P0506 0506EC-498
ISC SYSTEM P0507 0507EC-500
KNOCK SEN/CIRC-B1 P0327 0327EC-379
KNOCK SEN/CIRC-B1 P0328 0328EC-379
KNOCK SEN/CIRC-B2 P0332 0332EC-379
KNOCK SEN/CIRC-B2 P0333 0333EC-379
L/PRESS SOL/CIRC P0745 0745AT- 1 2 9
Items
(CONSULT-III screen terms)DTC*
1
Reference page
CONSULT-III
GST*
2ECM*3

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

EC-498
DTC P0506 ISC SYSTEM
Revision: 2006 November2007 350Z
DTC P0506 ISC SYSTEMPFP:23781
DescriptionNBS000AM
NOTE:
If DTC P0506 is displayed with other DTC, first perform the trouble diagnosis for the other DTC.
The ECM controls the engine idle speed to a specified level through the fine adjustment of the air, which is let
into the intake manifold, by operating the electric throttle control actuator. The operating of the throttle valve is
varied to allow for optimum control of the engine idling speed. The crankshaft position sensor (POS) detects
the actual engine speed and sends a signal to the ECM.
The ECM controls the electric throttle control actuator so that the engine speed coincides with the target value
memorized in the ECM. The target engine speed is the lowest speed at which the engine can operate steadily.
The optimum value stored in the ECM is determined by taking into consideration various engine conditions,
such as during warming up, deceleration, and engine load (air conditioner, power steering and cooling fan
operation, etc.).
On Board Diagnosis LogicNBS000AN
DTC Confirmation ProcedureNBS000AO
NOTE:

If DTC Confirmation Procedure has been previously conducted, always turn ignition switch OFF and wait
at least 10 seconds before conducting the next test.

If the target idle speed is out of the specified value, perform EC-77, "Idle Air Volume Learning" ,
before conducting DTC Confirmation Procedure. For the target idle speed, refer to EC-718, "
SER-
VICE DATA AND SPECIFICATIONS (SDS)" .
TESTING CONDITION:

Before performing the following procedure, confirm that battery voltage is more than 11V at idle.

Always perform the test at a temperature above −10°C (14°F).
WITH CONSULT-III
1. Open engine hood.
2. Start engine and warm it up to normal operating temperature.
3. Turn ignition switch OFF and wait at least 10 seconds.
4. Restart engine and run it for at least 1 minute at idle speed.
5. Check 1st trip DTC.
6. If 1st trip DTC is detected, go to EC-498, "
Diagnostic Procedure" .
WITH GST
Follow the procedure “WITH CONSULT-III” above.
Diagnostic ProcedureNBS000AP
1. CHECK INTAKE AIR LEAK
1. Start engine and let it idle.
2. Listen for an intake air leak after the mass air flow sensor.
OK or NG
OK >> GO TO 2.
NG >> Discover air leak location and repair.
DTC No. Trouble diagnosis name DTC detecting condition Possible cause
P0506
0506Idle speed control sys-
tem RPM lower than
expectedThe idle speed is less than the target idle
speed by 100 rpm or more.

Electric throttle control actuator

Intake air leak