2006 INFINITI M35 sensor

EC-692
[VQ35DE]
REFRIGERANT PRESSURE SENSOR
Revision: 2006 January2006 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

REFRIGERANT PRESSURE SENSOR
EC-693
[VQ35DE]
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Revision: 2006 January2006 M35/M45
Wiring DiagramNBS00586
TBWT0998E

EC-694
[VQ35DE]
REFRIGERANT PRESSURE SENSOR
Revision: 2006 January2006 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 ProcedureNBS00587
1. CHECK REFRIGERANT PRESSURE SENSOR OVERALL FUNCTION
1. Start engine and warm it up to normal operating temperature.
2. Turn A/C switch and blower switch ON.
3. Check voltage between ECM terminal 70 and ground with CON-
SULT-II or tester.
OK or NG
OK >>INSPECTION END
NG >> GO TO 2.
TER-
MINAL
NO.WIRE
COLORITEM CONDITION DATA (DC Voltage)
49 B/YSensor power supply
(Refrigerant pressure sen-
sor, Battery current sensor)[Ignition switch: ON]Approximately 5V
67 B/WSensor ground
(MAF sensor, IAT sensor,
ECT sensor, EVAP control
system pressure sensor,
PSP sensor, ASCD/ICC
steering switch, Battery cur-
rent sensor, Refrigerant
pressure sensor)[Engine is running]
Warm-up condition
Idle speedApproximately 0V
70 L/R Refrigerant pressure sensor[Engine is running]
Warm-up condition
Both A/C switch and blower fan motor
switch: ON (Compressor operates)1.0 - 4.0V
Voltage: 1.0 - 4.0V
PBIB1188E

REFRIGERANT PRESSURE SENSOR
EC-695
[VQ35DE]
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Revision: 2006 January2006 M35/M45
2. CHECK GROUND CONNECTIONS
1. Turn A/C switch and blower switch OFF.
2. Stop engine.
3. Turn ignition switch OFF.
4. Loosen and retighten two ground screws on the body.
Refer to EC-172, "
Ground Inspection" .
OK or NG
OK >> GO TO 3.
NG >> Repair or replace ground connections.
3. CHECK REFRIGERANT PRESSURE SENSOR POWER SUPPLY CIRCUIT
1. Disconnect refrigerant pressure sensor (1) harness connector.
2. Turn ignition switch ON.
3. Check voltage between refrigerant pressure sensor terminal 1
and ground with CONSULT-II or tester.
OK or NG
OK >> GO TO 5.
NG >> GO TO 4.
4. DETECT MALFUNCTIONING PART
Check the following.
Harness connectors E11, F2
Harness for open or short between ECM and refrigerant pressure sensor
>> Repair open circuit or short to ground or short to power in harness or connectors.
1. Body ground M70 2. Body ground M16
PBIB2782E
PBIA9537J
Voltage: Approximately 5V
PBIB0188E

EC-696
[VQ35DE]
REFRIGERANT PRESSURE SENSOR
Revision: 2006 January2006 M35/M45
5. CHECK REFRIGERANT PRESSURE SENSOR GROUND CIRCUIT FOR OPEN AND SHORT
1. Turn ignition switch OFF.
2. Disconnect ECM harness connector.
3. Check harness continuity between refrigerant pressure sensor terminal 3 and ECM terminal 67.
Refer to Wiring Diagram.
4. Also check harness for short to ground and short to power.
OK or NG
OK >> GO TO 7.
NG >> GO TO 6.
6. DETECT MALFUNCTIONING PART
Check the following.
Harness connectors E11, F2
Harness for open or short between ECM and refrigerant pressure sensor
>> Repair open circuit or short to ground or short to power in harness or connectors.
7. CHECK REFRIGERANT PRESSURE SENSOR INPUT SIGNAL CIRCUIT FOR OPEN AND SHORT
1. Check harness continuity between ECM terminal 70 and refrigerant pressure sensor terminal 2.
Refer to Wiring Diagram.
2. Also check harness for short to ground and short to power.
OK or NG
OK >> GO TO 9.
NG >> GO TO 8.
8. DETECT MALFUNCTIONING PART
Check the following.
Harness connectors E11, F2
Harness for open or short between ECM and refrigerant pressure sensor
>> Repair open circuit or short to ground or short to power in harness or connectors.
9. CHECK INTERMITTENT INCIDENT
Refer to EC-165, "
TROUBLE DIAGNOSIS FOR INTERMITTENT INCIDENT" .
OK or NG
OK >> Replace refrigerant pressure sensor.
NG >> Repair or replace.
Removal and InstallationNBS00588
REFRIGERANT PRESSURE SENSOR
Refer to ATC-167, "Removal and Installation of Refrigerant Pressure Sensor" . Continuity should exist.
Continuity should exist.

EC-724
[VQ35DE]
SERVICE DATA AND SPECIFICATIONS (SDS)
Revision: 2006 January2006 M35/M45
SERVICE DATA AND SPECIFICATIONS (SDS)PFP:00030
Fuel PressureNBS0058W
Idle Speed and Ignition TimingNBS0058X
*: Under the following conditions:
Air conditioner switch: OFF
Electric load: OFF (Lights, heater fan & rear window defogger)
Steering wheel: Kept in straight-ahead position
Calculated Load ValueNBS0058Y
Mass Air Flow SensorNBS0058Z
*: Engine is warmed up to normal operating temperature and running under no load.
Intake Air Temperature SensorNBS00590
Engine Coolant Temperature SensorNBS00591
Fuel Tank Temperature SensorNBS00592
Crankshaft Position Sensor (POS)NBS00593
Refer to EC-382, "Component Inspection" .
Camshaft Position Sensor (PHASE)NBS00594
Refer to EC-391, "Component Inspection" .
A/F Sensor 1 HeaterNBS00595
Fuel pressure at idling kPa (kg/cm2 , psi)Approximately 350 (3.57, 51)
Target idle speed No-load* (in P or N position) 650 50 rpm
Air conditioner: ON In P or N position 700 rpm or more
Ignition timing In P or N position 15
5 BTDC
Condition Calculated load value% (Using CONSULT-II or GST)
At idle5.0 - 35.0
At 2,500 rpm5.0 - 35.0
Supply voltageBattery voltage (11 - 14V)
Output voltage at idle0.9 - 1.2V*
Mass air flow (Using CONSULT-II or GST)2.0 - 6.0 gꞏm/sec at idle*
7.0 - 20.0 gꞏm/sec at 2,500 rpm*
Temperature C (F) Resistance k
25 (77)1.800 - 2.200
80 (176)0.283 - 0.359
Temperature C (F) Resistance k
20 (68)2.1 - 2.9
50 (122)0.68 - 1.00
90 (194)0.236 - 0.260
Temperature C (F) Resistance k
20 (68)2.3 - 2.7
50 (122)0.79 - 0.90
Resistance [at 25C (77F)] 2.3 - 4.3

SERVICE DATA AND SPECIFICATIONS (SDS)
EC-725
[VQ35DE]
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Revision: 2006 January2006 M35/M45
Heated Oxygen Sensor 2 HeaterNBS00596
Throttle Control MotorNBS00597
Fuel InjectorNBS00598
Fuel PumpNBS00599
Resistance [at 25C (77F)] 5.0 - 7.0
Resistance [at 25C (77F)] Approximately 1 - 15
Resistance [at 10 - 60C (50 - 140F)] 11.1 - 14.5
Resistance [at 25C (77F)] 0.2 - 5.0

EC-726
[VK45DE]
INDEX FOR DTC
Revision: 2006 January2006 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-886, "
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-889, "
DTC U1010 CAN COMMUNICATION" .
DTC*1
Items
(CONSULT-II screen terms)Reference page
CONSULT-II
GST*
2ECM*3
U1000
1000*4CAN COMM CIRCUITEC-886
U1001
1001*4CAN COMM CIRCUITEC-886
U1010 1010 CONTROL UNIT(CAN)EC-889
P0000 0000NO DTC IS DETECTED.
FURTHER TESTING
MAY BE REQUIRED.—
P0011 0011 INT/V TIM CONT-B1EC-891
P0021 0021 INT/V TIM CONT-B2EC-891
P0031 0031 A/F SEN1 HTR (B1)EC-904
P0032 0032 A/F SEN1 HTR (B1)EC-904
P0037 0037 HO2S2 HTR (B1)EC-911
P0038 0038 HO2S2 HTR (B1)EC-911
P0051 0051 A/F SEN1 HTR (B2)EC-904
P0052 0052 A/F SEN1 HTR (B2)EC-904
P0057 0057 HO2S2 HTR (B2)EC-911
P0058 0058 HO2S2 HTR (B2)EC-911
P0075 0075 INT/V TIM V/CIR-B1EC-920
P0081 0081 INT/V TIM V/CIR-B2EC-920
P0101 0101 MAF SEN/CIRCUITEC-927
P0102 0102 MAF SEN/CIRCUITEC-936
P0103 0103 MAF SEN/CIRCUITEC-936
P0112 0112 IAT SEN/CIRCUITEC-943
P0113 0113 IAT SEN/CIRCUITEC-943
P 0 11 7 0 11 7 E C T S E N / C I R CEC-948
P 0 11 8 0 11 8 E C T S E N / C I R CEC-948
P0122 0122 TP SEN 2/CIRCEC-954
P0123 0123 TP SEN 2/CIRCEC-954
P0125 0125 ECT SENSOREC-961
P0127 0127 IAT SENSOREC-964
P0128 0128 THERMSTAT FNCTNEC-967
P0130 0130 A/F SENSOR1 (B1)EC-969
P0131 0131 A/F SENSOR1 (B1)EC-979
P0132 0132 A/F SENSOR1 (B1)EC-988
P0133 0133 A/F SENSOR1 (B1)EC-997
P0137 0137 HO2S2 (B1)EC-1009
P0138 0138 HO2S2 (B1)EC-1020