2007 INFINITI M35 control

FUEL PUMP
EC-675
[VQ35DE]
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EC
Revision: 2007 April2007 M35/M45
FUEL PUMPPFP:17042
DescriptionNBS0057Z
SYSTEM DESCRIPTION
*: ECM determines the start signal status by the signals of engine speed and battery voltage.
The ECM activates the fuel pump for several seconds after the ignition switch is turned ON to improve engine
startability. If the ECM receives a engine speed signal from the camshaft position sensor (PHASE), it knows
that the engine is rotating, and causes the pump to operate. If the engine speed signal is not received when
the ignition switch is ON, the engine stalls. The ECM stops pump operation and prevents battery discharging,
thereby improving safety. The ECM does not directly drive the fuel pump. It controls the ON/OFF fuel pump
relay, which in turn controls the fuel pump.
COMPONENT DESCRIPTION
A turbine type design fuel pump is used in the fuel tank.

Fuel level sensor unit and fuel pump (1)

Fuel pressure regulator (2)

Fuel tank temperature sensor (3)
CONSULT-II Reference Value in Data Monitor ModeNBS00580
Specification data are reference values.
Sensor Input signal to ECM ECM Function Actuator
Crankshaft position sensor (POS)
Camshaft position sensor (PHASE)Engine speed*
Fuel pump control Fuel pump relay
Battery Battery voltage*
Condition Fuel pump operation
Ignition switch is turned to ON. Operates for 1 second.
Engine running and crankingOperates.
When engine is stoppedStops in 1.5 seconds.
Except as shown aboveStops.
PBIB2707E
MONITOR ITEM CONDITION SPECIFICATION
FUEL PUMP RLY

For 1 seconds after turning ignition switch: ON

Engine running or crankingON

Except above OFF

FUEL PUMP
EC-677
[VQ35DE]
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EC
Revision: 2007 April2007 M35/M45
Specification data are reference values and are measured between each terminal and ground.
CAUTION:
Do not use ECM ground terminals when measuring input/output voltage. Doing so may result in dam-
age to the ECM's transistor. Use a ground other than ECM terminals, such as the ground.
Diagnostic ProcedureNBS00582
1. CHECK OVERALL FUNCTION
1. Turn ignition switch ON.
2. Pinch fuel feed hose with two fingers.
OK or NG
OK >>INSPECTION END
NG >> GO TO 2.
2. CHECK FUEL PUMP POWER SUPPLY CIRCUIT-I
1. Turn ignition switch OFF.
2. Disconnect ECM harness connector.
3. Turn ignition switch ON.
4. Check voltage between ECM terminal 113 and ground with
CONSULT-II or tester.
OK or NG
OK >> GO TO 5.
NG >> GO TO 3.
TER-
MINAL
NO.WIRE
COLORITEM CONDITION DATA (DC Voltage)
38 G/RFuel pump control module
(FPCM) check[When cranking engine]Approximately 0V
[Engine is running]

Warm-up condition

Idle speed4 - 6V
39 B/RFuel pump control module
(FPCM)[When cranking engine]0 - 0.5V
[Engine is running]

Warm-up condition

Idle speed8 - 12V
113 GR Fuel pump relay[Ignition switch: ON]

For 1 second after turning ignition switch ON
[Engine is running]0 - 1.5V
[Ignition switch: ON]

More than 1 second after turning ignition
switch ONBATTERY VOLTAGE
(11 - 14V)
Fuel pressure pulsation should be felt on the fuel feed
hose for 1 second after ignition switch is turned ON.
PBIB1612E
Voltage: Battery voltage
PBIB1187E

EC-704
[VQ35DE]
REFRIGERANT PRESSURE SENSOR
Revision: 2007 April2007 M35/M45
REFRIGERANT PRESSURE SENSORPFP:92136
Component DescriptionNBS00585
The refrigerant pressure sensor (1) is installed at the condenser of
the air conditioner system. The sensor uses an electrostatic volume
pressure transducer to convert refrigerant pressure to voltage. The
voltage signal is sent to ECM, and ECM controls cooling fan system.
PBIA9537J
PBIB2657E

SNOW MODE SWITCH
EC-709
[VQ35DE]
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EC
Revision: 2007 April2007 M35/M45
SNOW MODE SWITCHPFP:25310
DescriptionNBS0058Q
NOTE:
If DTC U1000 or U1001 are displayed, first perform the trouble diagnosis for DTC U1000, U1001.
Refer to EC-161, "
DTC U1000, U1001 CAN COMMUNICATION LINE" .
If DTC U1010 is displayed, first perform the trouble diagnosis for DTC U1010.
Refer to EC-164, "
DTC U1010 CAN COMMUNICATION" .
The snow mode switch signal is sent to the “unified meter and A/C amp.” from the snow mode switch. The
“unified meter and A/C amp.” then sends the signal to the ECM by CAN communication line.
The snow mode is used for driving or starting the vehicle on snowy roads or slippery areas. If the snow mode
is activated, the vehicle speed will not be accelerated immediately than your original pedal in due to avoid the
vehicle slip. In other words, ECM controls the rapid engine torque change by controlling the electric throttle
control actuator operating speed.
CONSULT-II Reference Value in the Data Monitor ModeNBS0058R
MONITOR ITEM CONDITION SPECIFICATION
SNOW MODE SW

Ignition switch: ONSNOW MODE SW: ON ON
SNOW MODE SW: OFF OFF

SERVICE DATA AND SPECIFICATIONS (SDS)
EC-717
[VQ35DE]
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EC
Revision: 2007 April2007 M35/M45
Heated Oxygen Sensor 2 HeaterNBS00596
Throttle Control MotorNBS00597
Fuel InjectorNBS00598
Fuel PumpNBS00599
Resistance [at 25°C (77°F)] 3.4 - 4.4Ω
Resistance [at 25°C (77°F)] Approximately 1 - 15Ω
Resistance [at 10 - 60°C (50 - 140°F)] 11.1 - 14.5Ω
Resistance [at 25°C (77°F)] 0.2 - 5.0Ω

EC-718
[VK45DE]
INDEX FOR DTC
Revision: 2007 April2007 M35/M45
[VK45DE]INDEX FOR DTCPFP:00024
DTC No. IndexNBS0059A
NOTE:

If DTC U1000 or U1001 is displayed with other DTC, first perform the trouble diagnosis for DTC
U1000, U1001. Refer to EC-865, "
DTC U1000, U1001 CAN COMMUNICATION LINE" .

If DTC U1010 is displayed with other DTC, first perform the trouble diagnosis for DTC U1010. Refer
to EC-868, "
DTC U1010 CAN COMMUNICATION" .
DTC*1
Items
(CONSULT-II screen terms)Reference page
CONSULT-II
GST*
2ECM*3
U1000
1000*4CAN COMM CIRCUITEC-865
U1001
1001*4CAN COMM CIRCUITEC-865
U1010 1010 CONTROL UNIT(CAN)EC-868
P0000 0000NO DTC IS DETECTED.
FURTHER TESTING
MAY BE REQUIRED.—
P0011 0011 INT/V TIM CONT-B1EC-870
P0021 0021 INT/V TIM CONT-B2EC-870
P0031 0031 A/F SEN1 HTR (B1)EC-883
P0032 0032 A/F SEN1 HTR (B1)EC-883
P0037 0037 HO2S2 HTR (B1)EC-890
P0038 0038 HO2S2 HTR (B1)EC-890
P0051 0051 A/F SEN1 HTR (B2)EC-883
P0052 0052 A/F SEN1 HTR (B2)EC-883
P0057 0057 HO2S2 HTR (B2)EC-890
P0058 0058 HO2S2 HTR (B2)EC-890
P0075 0075 INT/V TIM V/CIR-B1EC-899
P0081 0081 INT/V TIM V/CIR-B2EC-899
P0101 0101 MAF SEN/CIRCUITEC-906
P0102 0102 MAF SEN/CIRCUITEC-915
P0103 0103 MAF SEN/CIRCUITEC-915
P0112 0112 IAT SEN/CIRCUITEC-922
P0113 0113 IAT SEN/CIRCUITEC-922
P0117 0117 ECT SEN/CIRCEC-926
P0118 0118 ECT SEN/CIRCEC-926
P0122 0122 TP SEN 2/CIRCEC-932
P0123 0123 TP SEN 2/CIRCEC-932
P0125 0125 ECT SENSOREC-939
P0127 0127 IAT SENSOREC-942
P0128 0128 THERMSTAT FNCTNEC-945
P0130 0130 A/F SENSOR1 (B1)EC-947
P0131 0131 A/F SENSOR1 (B1)EC-957
P0132 0132 A/F SENSOR1 (B1)EC-966
P0133 0133 A/F SENSOR1 (B1)EC-975
P0137 0137 HO2S2 (B1)EC-987
P0138 0138 HO2S2 (B1)EC-998

INDEX FOR DTC
EC-719
[VK45DE]
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Revision: 2007 April2007 M35/M45P0139 0139 HO2S2 (B1)EC-1011
P0150 0150 A/F SENSOR1 (B2)EC-947
P0151 0151 A/F SENSOR1 (B2)EC-957
P0152 0152 A/F SENSOR1 (B2)EC-966
P0153 0153 A/F SENSOR1 (B2)EC-975
P0157 0157 HO2S2 (B2)EC-987
P0158 0158 HO2S2 (B2)EC-998
P0159 0159 HO2S2 (B2)EC-1011
P0171 0171 FUEL SYS-LEAN-B1EC-1022
P0172 0172 FUEL SYS-RICH-B1EC-1033
P0174 0174 FUEL SYS-LEAN-B2EC-1022
P0175 0175 FUEL SYS-RICH-B2EC-1033
P0181 0181 FTT SENSOREC-1043
P0182 0182 FTT SEN/CIRCUITEC-1049
P0183 0183 FTT SEN/CIRCUITEC-1049
P0222 0222 TP SEN 1/CIRCEC-1054
P0223 0223 TP SEN 1/CIRCEC-1054
P0300 0300 MULTI CYL MISFIREEC-1061
P0301 0301 CYL 1 MISFIREEC-1061
P0302 0302 CYL 2 MISFIREEC-1061
P0303 0303 CYL 3 MISFIREEC-1061
P0304 0304 CYL 4 MISFIREEC-1061
P0305 0305 CYL 5 MISFIREEC-1061
P0306 0306 CYL 6 MISFIREEC-1061
P0307 0307 CYL 7 MISFIREEC-1061
P0308 0308 CYL 8 MISFIREEC-1061
P0327 0327 KNOCK SEN/CIRC-B1EC-1070
P0328 0328 KNOCK SEN/CIRC-B1EC-1070
P0332 0332 KNOCK SEN/CIRC-B2EC-1070
P0333 0333 KNOCK SEN/CIRC-B2EC-1070
P0335 0335 CKP SEN/CIRCUITEC-1075
P0340 0340 CMP SEN/CIRC-B1EC-1082
P0420 0420 TW CATALYST SYS-B1EC-1089
P0430 0430 TW CATALYST SYS-B2EC-1089
P0441 0441 EVAP PURG FLOW/MONEC-1095
P0442 0442 EVAP SMALL LEAKEC-1100
P0443 0443 PURG VOLUME CONT/VEC-1108
P0444 0444 PURG VOLUME CONT/VE C - 111 6
P0445 0445 PURG VOLUME CONT/VE C - 111 6
P0447 0447 VENT CONTROL VALVEEC-1123
P0448 0448 VENT CONTROL VALVEEC-1130
P0451 0451 EVAP SYS PRES SENEC-1136
DTC*1
Items
(CONSULT-II screen terms)Reference page
CONSULT-II
GST*
2ECM*3

INDEX FOR DTC
EC-721
[VK45DE]
C
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Revision: 2007 April2007 M35/M45
*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, the MIL illuminates.
*6: Models with ICC.P1572 1572 ASCD BRAKE SWEC-1280
(Models with ICC)
EC-1289
(Models with ASCD)
P1574 1574 ASCD VHL SPD SENEC-1297
(Models with ICC)
EC-1299
(Models with ASCD)
P1610 - P1615 1610 - 1615 NATS MALFUNCTIONEC-755
P1715 1715 IN PULY SPEEDEC-1301
P1730 1730 A/T INTERLOCKAT-142
P1752 1752 I/C SOLENOID/CIRCAT-147
P1754 1754 I/C SOLENOID FNCTNAT-149
P1757 1757 FR/B SOLENOID/CIRCAT-151
P1759 1759 FR/B SOLENOID FNCTAT-153
P1762 1762 D/C SOLENOID/CIRCAT-155
P1764 1764 D/C SOLENOID FNCTNAT-157
P1767 1767 HLR/C SOL/CIRCAT-159
P1769 1769 HLR/C SOL FNCTNAT-161
P1772 1772 LC/B SOLENOID/CIRCAT-163
P1774 1774 LC/B SOLENOID FNCTAT-165
P1800 1800 VIAS S/V CIRCEC-1302
P1805 1805 BRAKE SW/CIRCUITEC-1307
P2100 2100 ETC MOT PWREC-1316
P2101 2101 ETC FUNCTION/CIRCEC-1322
P2103 2103 ETC MOT PWREC-1316
P 2 11 8 2 11 8 E T C M O TEC-1329
P 2 11 9 2 11 9 E T C A C T REC-1334
P2122 2122 APP SEN 1/CIRCEC-1336
P2123 2123 APP SEN 1/CIRCEC-1336
P2127 2127 APP SEN 2/CIRCEC-1343
P2128 2128 APP SEN 2/CIRCEC-1343
P2135 2135 TP SENSOREC-1350
P2138 2138 APP SENSOREC-1357
P2A00 2A00 A/F SENSOR1 (B1)EC-1365
P2A03 2A03 A/F SENSOR1 (B2)EC-1365
DTC*1
Items
(CONSULT-II screen terms)Reference page
CONSULT-II
GST*
2ECM*3