Page 2345 of 4647
EC-816
[VK45DE]
TROUBLE DIAGNOSIS
Revision: 2007 April2007 M35/M45
TBWT1490E
Page 2346 of 4647
![INFINITI M35 2007 Factory Service Manual TROUBLE DIAGNOSIS
EC-817
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Revision: 2007 April2007 M35/M45
ECM Harness Connector Terminal LayoutNBS005AL
ECM Terminals and Reference ValueNBS005AM
PREPARATION
1. ECM INFINITI M35 2007 Factory Service Manual TROUBLE DIAGNOSIS
EC-817
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Revision: 2007 April2007 M35/M45
ECM Harness Connector Terminal LayoutNBS005AL
ECM Terminals and Reference ValueNBS005AM
PREPARATION
1. ECM](/manual-img/42/57024/w960_57024-2345.png)
TROUBLE DIAGNOSIS
EC-817
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Revision: 2007 April2007 M35/M45
ECM Harness Connector Terminal LayoutNBS005AL
ECM Terminals and Reference ValueNBS005AM
PREPARATION
1. ECM (1) 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 (A) it with
levers (2) as far as they will go as shown in the figure.
ECM (1)
Fasten (B)
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.
MBIB0045E
PBIB2703E
PBIB2714E
TER-
MINAL
NO.WIRE
COLORITEM CONDITION DATA (DC Voltage)
1 B ECM ground[Engine is running]
Idle speedBody ground
2SBA/F sensor 1 heater
(bank 1)[Engine is running]
Warm-up condition
Idle speedApproximately 5V
PBIB1584E
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![INFINITI M35 2007 Factory Service Manual EC-818
[VK45DE]
TROUBLE DIAGNOSIS
Revision: 2007 April2007 M35/M45
3RThrottle control motor relay
power supply[Ignition switch: ON]BATTERY VOLTAGE
(11 - 14V)
4WThrottle control motor
(Close)[Ignitio INFINITI M35 2007 Factory Service Manual EC-818
[VK45DE]
TROUBLE DIAGNOSIS
Revision: 2007 April2007 M35/M45
3RThrottle control motor relay
power supply[Ignition switch: ON]BATTERY VOLTAGE
(11 - 14V)
4WThrottle control motor
(Close)[Ignitio](/manual-img/42/57024/w960_57024-2346.png)
EC-818
[VK45DE]
TROUBLE DIAGNOSIS
Revision: 2007 April2007 M35/M45
3RThrottle control motor relay
power supply[Ignition switch: ON]BATTERY VOLTAGE
(11 - 14V)
4WThrottle control motor
(Close)[Ignition switch: ON]
Engine: Stopped
Selector lever: D
Accelerator pedal: Released0 - 14V
5BThrottle control motor
(Open)[Ignition switch: ON]
Engine: Stopped
Selector lever: D
Accelerator pedal: Fully depressed0 - 14V
6R/LHeated oxygen sensor 2
heater (bank 1)[Engine is running]
Engine speed: 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: Above 3,600 rpmBATTERY VOLTAGE
(11 - 14V)
10 W/GIntake valve timing control
solenoid valve (bank 1)[Engine is running]
Warm-up condition
Idle speedBATTERY VOLTAGE
(11 - 14V)
[Engine is running]
Warm-up condition
Engine speed: 2,000rpm7 - 12V
11 G/OIntake valve timing control
solenoid valve (bank 2)[Engine is running]
Warm-up condition
Idle speedBATTERY VOLTAGE
(11 - 14V)
[Engine is running]
Warm-up condition
Engine speed: 2,000rpm7 - 12V TER-
MINAL
NO.WIRE
COLORITEM CONDITION DATA (DC Voltage)
PBIB1104E
PBIB1105E
PBIB1790E
PBIB1790E
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![INFINITI M35 2007 Factory Service Manual TROUBLE DIAGNOSIS
EC-819
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Revision: 2007 April2007 M35/M4512 R/GPower steering pressure
sensor[Engine is running]Steering wheel: Being turned0.5 - 4.5V
[Engine is r INFINITI M35 2007 Factory Service Manual TROUBLE DIAGNOSIS
EC-819
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Revision: 2007 April2007 M35/M4512 R/GPower steering pressure
sensor[Engine is running]Steering wheel: Being turned0.5 - 4.5V
[Engine is r](/manual-img/42/57024/w960_57024-2347.png)
TROUBLE DIAGNOSIS
EC-819
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Revision: 2007 April2007 M35/M4512 R/GPower steering pressure
sensor[Engine is running]Steering wheel: Being turned0.5 - 4.5V
[Engine is running]
Steering wheel: Not being turned0.4 - 0.8V
13 W/RCrankshaft position sensor
(POS)[Engine is running]
Warm-up condition
Idle speed
NOTE:
The pulse cycle changes depending on rpm
at idle1.0 - 2.0V
[Engine is running]
Engine speed: 2,000 rpm1.0 - 2.0V
14 GCamshaft position sensor
(PHASE)[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: 2,000 rpm1.0 - 4.0V
15 W Knock sensor (bank 1)[Engine is running]
Idle speedApproximately 2.5V
16 W/L
A/F sensor 1 (bank 1)[Engine is running]
Warm-up condition
Idle speedApproximately 3.1V
35 GR/LApproximately 2.6V
56 LG/BApproximately 2.3V
75 YApproximately 2.3V TER-
MINAL
NO.WIRE
COLORITEM CONDITION DATA (DC Voltage)
PBIB1041E
PBIB1042E
PBIB1039E
PBIB1040E
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![INFINITI M35 2007 Factory Service Manual EC-820
[VK45DE]
TROUBLE DIAGNOSIS
Revision: 2007 April2007 M35/M45
21
22
23
40
41
42
44
63W/B
R/Y
R/B
V/R
P/L
R/W
O
G/YFuel injector No. 5
Fuel injector No. 3
Fuel injector No. 1
Fuel injector No. 6
F INFINITI M35 2007 Factory Service Manual EC-820
[VK45DE]
TROUBLE DIAGNOSIS
Revision: 2007 April2007 M35/M45
21
22
23
40
41
42
44
63W/B
R/Y
R/B
V/R
P/L
R/W
O
G/YFuel injector No. 5
Fuel injector No. 3
Fuel injector No. 1
Fuel injector No. 6
F](/manual-img/42/57024/w960_57024-2348.png)
EC-820
[VK45DE]
TROUBLE DIAGNOSIS
Revision: 2007 April2007 M35/M45
21
22
23
40
41
42
44
63W/B
R/Y
R/B
V/R
P/L
R/W
O
G/YFuel injector No. 5
Fuel injector No. 3
Fuel injector No. 1
Fuel injector No. 6
Fuel injector No. 4
Fuel injector No. 2
Fuel injector No. 7
Fuel injector No. 8[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: 2,000 rpmBATTERY VOLTAGE
(11 - 14V)
24 SBA/F sensor 1 heater
(bank 2)[Engine is running]
Warm-up condition
Idle speedApproximately 5V
25 P/BHeated oxygen sensor 2
heater (bank 2)[Engine is running]
Engine speed: 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: Above 3,600 rpmBATTERY VOLTAGE
(11 - 14V)
29 V VIAS control solenoid valve[Engine is running]
Selector lever: P or N0 - 1.0V
[Engine is running]
Selector lever: D
Engine speed: Below 5,000 rpmBATTERY VOLTAGE
(11 - 14V)
[Engine is running]
Engine speed: Above 5,000 rpm0 - 1.0V
32 R/GEVAP control system pres-
sure sensor[Ignition switch: ON]Approximately 1.8 - 4.8V
34 Y/GIntake air temperature sen-
sor[Engine is running]Approximately 0 - 4.8V
Output voltage varies with intake
air temperature.
36 W Knock sensor (bank 2)[Engine is running]
Idle speedApproximately 2.5V TER-
MINAL
NO.WIRE
COLORITEM CONDITION DATA (DC Voltage)
PBIB0042E
PBIB0043E
PBIB1584E
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EC-821
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Revision: 2007 April2007 M35/M4538 G/BFuel pump control module
(FPCM) check[When cranking engine]Approximately 0V
[Engine is running]Warm- INFINITI M35 2007 Factory Service Manual TROUBLE DIAGNOSIS
EC-821
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Revision: 2007 April2007 M35/M4538 G/BFuel pump control module
(FPCM) check[When cranking engine]Approximately 0V
[Engine is running]Warm-](/manual-img/42/57024/w960_57024-2349.png)
TROUBLE DIAGNOSIS
EC-821
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Revision: 2007 April2007 M35/M4538 G/BFuel 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
45 VEVAP canister purge vol-
ume control solenoid valve[Engine is running]
Idle speed
Accelerator pedal: Not depressed even
slightly, after engine startingBATTERY VOLTAGE
(11 - 14V)
[Engine is running]
Engine speed: About 2,000 rpm (More than
100 seconds after starting engine)BATTERY VOLTAGE
(11 - 14V)
46
60
61
62
65
79
80
81L/O
V/W
P
Y/R
BR/R
GR/R
GR/B
G/RIgnition signal No. 7
Ignition signal No. 5
Ignition signal No. 3
Ignition signal No. 1
Ignition signal No. 8
Ignition 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: 2,000 rpm0.1 - 0.4V
47 GSensor power supply
(Throttle position sensor)[Ignition switch: ON]Approximately 5V
48 BRSensor power supply
(EVAP control system pres-
sure sensor)[Ignition switch: ON]Approximately 5V
49 B/YSensor power supply
(Refrigerant pressure sen-
sor, Battery current sensor)[Ignition switch: ON]Approximately 5V TER-
MINAL
NO.WIRE
COLORITEM CONDITION DATA (DC Voltage)
SEC990C
SEC991C
PBIB0044E
PBIB0045E
Page 2351 of 4647
![INFINITI M35 2007 Factory Service Manual EC-822
[VK45DE]
TROUBLE DIAGNOSIS
Revision: 2007 April2007 M35/M45
50 W Throttle position sensor 1[Ignition switch: ON]
Engine: Stopped
Selector lever: D
Accelerator pedal: Fully releasedMore than INFINITI M35 2007 Factory Service Manual EC-822
[VK45DE]
TROUBLE DIAGNOSIS
Revision: 2007 April2007 M35/M45
50 W Throttle position sensor 1[Ignition switch: ON]
Engine: Stopped
Selector lever: D
Accelerator pedal: Fully releasedMore than](/manual-img/42/57024/w960_57024-2350.png)
EC-822
[VK45DE]
TROUBLE DIAGNOSIS
Revision: 2007 April2007 M35/M45
50 W Throttle position sensor 1[Ignition switch: ON]
Engine: Stopped
Selector lever: D
Accelerator pedal: Fully releasedMore than 0.36V
[Ignition switch: ON]
Engine: Stopped
Selector lever: D
Accelerator pedal: Fully depressedLess than 4.75V
51 W Mass air flow sensor[Engine is running]
Warm-up condition
Idle speed0.9 - 1.2V
[Engine is running]
Warm-up condition
Engine speed: 2,500 rpm1.6 - 0.9V
53 LGIntake valve timing control
position sensor (bank 2)[Engine is running]
Warm-up condition
Idle speed0 - 1.0V
[Engine is running]
Engine speed: 2,000 rpm0 - 1.0V
55 L/RHeated oxygen sensor 2
(bank 1)[Engine is running]
Revving engine from idle to 3,000 rpm
quickly 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 - Approximately 1.0V
57 BR/W
A/F sensor 1 (bank 2)[Engine is running]
Warm-up condition
Idle speedApproximately 2.6V
58 G/OApproximately 2.3V
76 G/WApproximately 3.1V
77 GRApproximately 2.3V
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 TER-
MINAL
NO.WIRE
COLORITEM CONDITION DATA (DC Voltage)
PBIB2734E
PBIB2735E
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![INFINITI M35 2007 Factory Service Manual TROUBLE DIAGNOSIS
EC-823
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Revision: 2007 April2007 M35/M4568 L/YSensor power supply
(Power steering pressure
sensor)[Ignition switch: ON]Approximately 5V
69 R Thrott INFINITI M35 2007 Factory Service Manual TROUBLE DIAGNOSIS
EC-823
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Revision: 2007 April2007 M35/M4568 L/YSensor power supply
(Power steering pressure
sensor)[Ignition switch: ON]Approximately 5V
69 R Thrott](/manual-img/42/57024/w960_57024-2351.png)
TROUBLE DIAGNOSIS
EC-823
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Revision: 2007 April2007 M35/M4568 L/YSensor power supply
(Power steering pressure
sensor)[Ignition switch: ON]Approximately 5V
69 R Throttle position sensor 2[Ignition switch: ON]
Engine: Stopped
Selector lever: D
Accelerator pedal: Fully releasedLess than 4.75V
[Ignition switch: ON]
Engine: Stopped
Selector 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 fan motor
switch: ON (Compressor operates)1.0 - 4.0V
71 L/R Battery current sensor[Engine is running]
Battery: Fully charged*
Idle speedApproximately 2.6 - 3.5V
72 LIntake valve timing control
position sensor (bank 1)[Engine is running]
Warm-up condition
Idle speed0 - 1.0V
[Engine is running]
Engine speed: 2,000rpm0 - 1.0V
73 Y/BEngine coolant temperature
sensor[Engine is running]Approximately 0 - 4.8V
Output voltage varies with
engine coolant temperature.
74 WHeated oxygen sensor 2
(bank 2)[Engine is running]
Revving engine from idle to 3,000 rpm
quickly 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 - Approximately 1.0V
78 BSensor ground
(Heated oxygen sensor 2)[Engine is running]
Warm-up condition
Idle speedApproximately 0V
82 WSensor ground
(APP sensor 1)[Engine is running]
Warm-up condition
Idle speedApproximately 0V TER-
MINAL
NO.WIRE
COLORITEM CONDITION DATA (DC Voltage)
PBIB2734E
PBIB2735E