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![INFINITI FX35 2004 Service Manual EC-100
[VQ35DE]
TROUBLE DIAGNOSIS
Revision: 2004 November 2004 FX35/FX45
ECM Harness Connector Terminal LayoutABS006KV
ECM Terminals and Reference ValueABS006KW
PREPARATION
1. ECM is located behind th INFINITI FX35 2004 Service Manual EC-100
[VQ35DE]
TROUBLE DIAGNOSIS
Revision: 2004 November 2004 FX35/FX45
ECM Harness Connector Terminal LayoutABS006KV
ECM Terminals and Reference ValueABS006KW
PREPARATION
1. ECM is located behind th](/manual-img/42/57021/w960_57021-1440.png)
EC-100
[VQ35DE]
TROUBLE DIAGNOSIS
Revision: 2004 November 2004 FX35/FX45
ECM Harness Connector Terminal LayoutABS006KV
ECM Terminals and Reference ValueABS006KW
PREPARATION
1. ECM is located behind the passenger side instrument lower
panel. For this inspection, remove passenger side instrument
lower panel.
2. Remove ECM harness connector.
3. When disconnecting ECM harness connector, loosen it with
levers as far as they will go as shown in the figure.
4. Connect a break-out box (SST) and Y-cable adapter (SST)
between the ECM and ECM harness connector.
Use extreme care not to touch 2 pins at one time.
Data is for comparison and may not be exact.
ECM INSPECTION TABLE
Specification data are reference values and are measured between each terminal and ground.
Pulse signal is measured by CONSULT-II.
CAUTION:
Do not use ECM ground terminals when measuring input/output voltage. Doing so may result in dam-
age to the ECMs transistor. Use a ground other than ECM terminals, such as the ground.
PBIB1192E
PBIB1578E
PBIB1512E
TER-
MINAL
NO.WIRE
COLORITEM CONDITION DATA (DC Voltage)
1 B ECM ground[Engine is running]
Idle speedBody ground
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EC-101
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Revision: 2004 November 2004 FX35/FX45
2LHeated oxygen sensor 1
heater (bank 2)[Engine is running]
Warm-up condition
Engine speed is belo INFINITI FX35 2004 Service Manual TROUBLE DIAGNOSIS
EC-101
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Revision: 2004 November 2004 FX35/FX45
2LHeated oxygen sensor 1
heater (bank 2)[Engine is running]
Warm-up condition
Engine speed is belo](/manual-img/42/57021/w960_57021-1441.png)
TROUBLE DIAGNOSIS
EC-101
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Revision: 2004 November 2004 FX35/FX45
2LHeated oxygen sensor 1
heater (bank 2)[Engine is running]
Warm-up condition
Engine speed is below 3,600 rpmApproximately 8V
[Engine is running]
Engine speed is above 3,600 rpmBATTERY VOLTAGE
(11 - 14V)
3RThrottle control motor relay
power supply[Ignition switch: ON]BATTERY VOLTAGE
(11 - 14V)
4L/WThrottle control motor
(Close)[Ignition switch: ON]
Engine stopped
Shift lever: D
Accelerator pedal: Released0 - 14V
5L/BThrottle control motor
(Open)[Ignition switch: ON]
Engine stopped
Shift lever: D
Accelerator pedal: Fully depressed0 - 14V
6RHeated oxygen sensor 2
heater (bank 2)[Engine is running]
Engine speed is below 3,600 rpm after the
following conditions are met
–Engine: after warming up
–Keeping the engine speed between 3,500
and 4,000 rpm for 1 minute and at idle for 1
minute under no load0 - 1.0V
[Ignition switch: ON]
Engine stopped
[Engine is running]
Engine speed is above 3,600 rpmBATTERY VOLTAGE
(11 - 14V)
10 ORIntake valve timing control
solenoid valve (bank 2)[Engine is running]
Warm-up condition
Idle speedBATTERY VOLTAGE
(11 - 14V)
[Engine is running]
Warm-up condition
When revving engine up to 2,500 rpm
quickly7 - 12V TER-
MINAL
NO.WIRE
COLORITEM CONDITION DATA (DC Voltage)
PBIB0519E
PBIB1104E
PBIB1105E
PBIB1790E
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![INFINITI FX35 2004 Service Manual EC-102
[VQ35DE]
TROUBLE DIAGNOSIS
Revision: 2004 November 2004 FX35/FX45
11 B RIntake valve timing control
solenoid valve (bank 1)[Engine is running]
Warm-up condition
Idle speedBATTERY VOLTAGE
(11 INFINITI FX35 2004 Service Manual EC-102
[VQ35DE]
TROUBLE DIAGNOSIS
Revision: 2004 November 2004 FX35/FX45
11 B RIntake valve timing control
solenoid valve (bank 1)[Engine is running]
Warm-up condition
Idle speedBATTERY VOLTAGE
(11](/manual-img/42/57021/w960_57021-1442.png)
EC-102
[VQ35DE]
TROUBLE DIAGNOSIS
Revision: 2004 November 2004 FX35/FX45
11 B RIntake valve timing control
solenoid valve (bank 1)[Engine is running]
Warm-up condition
Idle speedBATTERY VOLTAGE
(11 - 14V)
[Engine is running]
Warm-up condition
When revving engine up to 2,500 rpm
quickly7 - 12V
12 R/GPower steering pressure
sensor[Engine is running]
Steering wheel is being turned0.5 - 4.5V
[Engine is running]
Steering wheel is not being turned0.4 - 0.8V
13 YCrankshaft position sensor
(POS)[Engine is running]
Warm-up condition
Idle speed
NOTE:
The pulse cycle changes depending on rpm at
idleApproximately 1.6V
[Engine is running]
Engine speed is 2,000 rpmApproximately 1.4V
14 BRCamshaft position sensor
(PHASE) (bank 2)[Engine is running]
Warm-up condition
Idle speed
NOTE:
The pulse cycle changes depending on rpm at
idle1.0 - 4.0V
[Engine is running]
Engine speed is 2,000 rpm1.0 - 4.0V
15 W Knock sensor[Engine is running]
Idle speedApproximately 2.5V
16 R/LHeated oxygen sensor 1
(bank 2)[Engine is running]
Warm-up condition
Engine speed is 2,000 rpm0 - Approximately 1.0V
(Periodically change) TER-
MINAL
NO.WIRE
COLORITEM CONDITION DATA (DC Voltage)
PBIB1790E
PBIB1041E
PBIB1042E
PBIB1039E
PBIB1040E
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Revision: 2004 November 2004 FX35/FX45
21
22
23W
G
RInjector No. 5
Injector No. 3
Injector No. 1[Engine is running]
Warm-up condition
Idle INFINITI FX35 2004 Service Manual TROUBLE DIAGNOSIS
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Revision: 2004 November 2004 FX35/FX45
21
22
23W
G
RInjector No. 5
Injector No. 3
Injector No. 1[Engine is running]
Warm-up condition
Idle](/manual-img/42/57021/w960_57021-1443.png)
TROUBLE DIAGNOSIS
EC-103
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Revision: 2004 November 2004 FX35/FX45
21
22
23W
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RInjector No. 5
Injector No. 3
Injector No. 1[Engine is running]
Warm-up condition
Idle speed
NOTE:
The pulse cycle changes depending on rpm at
idleBATTERY VOLTAGE
(11 - 14V)
[Engine is running]
Warm-up condition
Engine speed is 2,000 rpmBATTERY VOLTAGE
(11 - 14V)
24 LHeated oxygen sensor 1
heater (bank 1)[Engine is running]
Warm-up condition
Engine speed is below 3,600 rpmApproximately 8V
[Engine is running]
Engine speed is above 3,600 rpmBATTERY VOLTAGE
(11 - 14V)
25 PHeated oxygen sensor 2
heater (bank 1)[Engine is running]
Engine speed is below 3,600 rpm after the
following conditions are met
–Engine: after warming up
–Keeping the engine speed between 3,500
and 4,000 rpm for 1 minute and at idle for 1
minute under no load0 - 1.0V
[Ignition switch: ON]
Engine stopped
[Engine is running]
Engine speed is above 3,600 rpmBATTERY VOLTAGE
(11 - 14V)
32 OREVAP control system pres-
sure sensor[Ignition switch: ON]Approximately 1.8 - 4.8V TER-
MINAL
NO.WIRE
COLORITEM CONDITION DATA (DC Voltage)
SEC984C
SEC985C
PBIB0519E
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EC-104
[VQ35DE]
TROUBLE DIAGNOSIS
Revision: 2004 November 2004 FX35/FX45
33 R/LCamshaft position sensor
(PHASE) (bank 1)[Engine is running]
Warm-up condition
Idle speed
NOTE:
The pulse cycle changes depending on rpm at
idle1.0 - 4.0V
[Engine is running]
Engine speed is 2,000 rpm1.0 - 4.0V
34 ORIntake air temperature sen-
sor[Engine is running]Approximately 0 - 4.8V
Output voltage varies with intake
air temperature.
35 BRHeated oxygen sensor 1
(bank 1)[Engine is running]
Warm-up condition
Engine speed is 2,000 rpm0 - Approximately 1.0V
(Periodically change)
40
41
42LG
B
PInjector No. 6
Injector No. 4
Injector No. 2[Engine is running]
Warm-up condition
Idle speed
NOTE:
The pulse cycle changes depending on rpm at
idleBATTERY VOLTAGE
(11 - 14V)
[Engine is running]
Warm-up condition
Engine speed is 2,000 rpmBATTERY VOLTAGE
(11 - 14V) TER-
MINAL
NO.WIRE
COLORITEM CONDITION DATA (DC Voltage)
PBIB1039E
PBIB1040E
SEC984C
SEC985C
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Revision: 2004 November 2004 FX35/FX45
45 GYEVAP canister purge vol-
ume control solenoid valve[Engine is running]
Idle speedBATTERY VOLTAG INFINITI FX35 2004 Service Manual TROUBLE DIAGNOSIS
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Revision: 2004 November 2004 FX35/FX45
45 GYEVAP canister purge vol-
ume control solenoid valve[Engine is running]
Idle speedBATTERY VOLTAG](/manual-img/42/57021/w960_57021-1445.png)
TROUBLE DIAGNOSIS
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Revision: 2004 November 2004 FX35/FX45
45 GYEVAP canister purge vol-
ume control solenoid valve[Engine is running]
Idle speedBATTERY VOLTAGE
(11 - 14V)
[Engine is running]
Engine speed is about 2,000 rpm (More
than 100 seconds after starting engine)BATTERY VOLTAGE
(11 - 14V)
47 LSensor power supply
(Throttle position sensor)[Ignition switch: ON]Approximately 5V
48 LGSensor power supply
(EVAP control system pres-
sure sensor)[Ignition switch: ON]Approximately 5V
49 PUSensor power supply
(Refrigerant pressure sen-
sor)[Ignition switch: ON]Approximately 5V
50 W Throttle position sensor 1[Ignition switch: ON]
Engine stopped
Shift lever: D
Accelerator pedal: Fully releasedMore than 0.36V
[Ignition switch: ON]
Engine stopped
Shift lever: D
Accelerator pedal: Fully depressedLess than 4.75V
51 L/W Mass air flow sensor[Engine is running]
Warm-up condition
Idle speed0.9 - 1.2V
[Engine is running]
Warm-up condition
Engine speed is 2,500 rpm1.6 - 1.9V
55 W/RHeated oxygen sensor 2
(bank 2)[Engine is running]
Warm-up condition
Revving engine from idle to 3,000 rpm
quickly after the following conditions are met
–After keeping the engine speed between
3,500 and 4,000 rpm for 1 minute and at idle
for 1 minute under no load0 - Approximately 1.0V TER-
MINAL
NO.WIRE
COLORITEM CONDITION DATA (DC Voltage)
SEC990C
SEC991C
Page 1447 of 4449
![INFINITI FX35 2004 Service Manual EC-106
[VQ35DE]
TROUBLE DIAGNOSIS
Revision: 2004 November 2004 FX35/FX45
60
61
62PU
L
YIgnition signal No. 5
Ignition signal No. 3
Ignition signal No. 1[Engine is running]
Warm-up condition
Idle spe INFINITI FX35 2004 Service Manual EC-106
[VQ35DE]
TROUBLE DIAGNOSIS
Revision: 2004 November 2004 FX35/FX45
60
61
62PU
L
YIgnition signal No. 5
Ignition signal No. 3
Ignition signal No. 1[Engine is running]
Warm-up condition
Idle spe](/manual-img/42/57021/w960_57021-1446.png)
EC-106
[VQ35DE]
TROUBLE DIAGNOSIS
Revision: 2004 November 2004 FX35/FX45
60
61
62PU
L
YIgnition signal No. 5
Ignition signal No. 3
Ignition signal No. 1[Engine is running]
Warm-up condition
Idle speed
NOTE:
The pulse cycle changes depending on rpm at
idle0 - 0.2V
[Engine is running]
Warm-up condition
Engine speed is 2,500 rpm0.1 - 0.4V
66 BSensor ground
(Throttle position sensor)[Engine is running]
Warm-up condition
Idle speedApproximately 0V
67 B/W Sensor ground[Engine is running]
Warm-up condition
Idle speedApproximately 0V
68 BRSensor power supply
(Power steering pressure
sensor)[Ignition switch: ON]Approximately 5V
69 R Throttle position sensor 2[Ignition switch: ON]
Engine stopped
Shift lever: D
Accelerator pedal: Fully releasedLess than 4.75V
[Ignition switch: ON]
Engine stopped
Shift lever: D
Accelerator pedal: Fully depressedMore than 0.36V
70 L/R Refrigerant pressure sensor[Engine is running]
Warm-up condition
Both A/C switch and blower switch are ON
(Compressor operates)1.0 - 4.0V
73 YEngine coolant temperature
sensor[Engine is running]Approximately 0 - 4.8V
Output voltage varies with
engine coolant temperature.
74 LG/BHeated oxygen sensor 2
(bank 1)[Engine is running]
Warm-up condition
Revving engine from idle to 3,000 rpm
quickly after the following conditions are met
–After keeping the engine speed between
3,500 and 4,000 rpm for 1 minute and at idle
for 1 minute under no load0 - Approximately 1.0V
78 B/RSensor ground
(Heated oxygen sensor)[Engine is running]
Warm-up condition
Idle speedApproximately 0V TER-
MINAL
NO.WIRE
COLORITEM CONDITION DATA (DC Voltage)
SEC986C
SEC987C
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Revision: 2004 November 2004 FX35/FX45
79
80
81SB
GY
ORIgnition signal No. 6
Ignition signal No. 4
Ignition signal No. 2[Engine is running]
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Revision: 2004 November 2004 FX35/FX45
79
80
81SB
GY
ORIgnition signal No. 6
Ignition signal No. 4
Ignition signal No. 2[Engine is running]](/manual-img/42/57021/w960_57021-1447.png)
TROUBLE DIAGNOSIS
EC-107
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Revision: 2004 November 2004 FX35/FX45
79
80
81SB
GY
ORIgnition signal No. 6
Ignition signal No. 4
Ignition signal No. 2[Engine is running]
Warm-up condition
Idle speed
NOTE:
The pulse cycle changes depending on rpm at
idle0 - 0.2V
[Engine is running]
Warm-up condition
Engine speed is 2,500 rpm0.1 - 0.4V
82 B/WSensor ground
(APP sensor 1, ASCD steer-
ing switch, ICC steering
switch)[Engine is running]
Warm-up condition
Idle speedApproximately 0V
83 G/ORSensor ground
(APP sensor 2)[Engine is running]
Warm-up condition
Idle speedApproximately 0V
85 PU Data link connector[Ignition switch: ON]
CONSULT-II or GST is disconnectedApproximately 5V - Battery volt-
age (11 - 14V)
86 R CAN communication line[Ignition switch: ON]Approximately 1.1 - 2.3V
Output voltage varies with the
communication status.
90 L/BSensor power supply
(APP sensor 1)[Ignition switch: ON]Approximately 5V
91 GSensor power supply
(APP sensor 2)[Ignition switch: ON]Approximately 5V
94 L CAN communication line[Ignition switch: ON]Approximately 2.6 - 3.2V
Output voltage varies with the
communication status.
98 B/PAccelerator pedal position
sensor 2[Ignition switch: ON]
Engine stopped
Accelerator pedal: Fully released0.15 - 0.60V
[Ignition switch: ON]
Engine stopped
Accelerator pedal: Fully depressed1.95 - 2.40V TER-
MINAL
NO.WIRE
COLORITEM CONDITION DATA (DC Voltage)
SEC986C
SEC987C