Infiniti Q45. Manual — part 367
TROUBLE DIAGNOSIS
EC-107
C
D
E
F
G
H
I
J
K
L
M
A
EC
12
R
Power steering pressure
sensor
[Engine is running]
●
Steering wheel: Being turned
0.5 - 4.5V
[Engine is running]
●
Steering wheel: Not being turned
0.4 - 0.8V
13
P/L
Crankshaft position sensor
(POS)
[Engine is running]
●
Warm-up condition
●
Idle speed
NOTE:
The pulse cycle changes depending on rpm
at idle
1.0 - 2.0V
[Engine is running]
●
Engine speed: 2,000 rpm
1.0 - 2.0V
14
L/W
Camshaft position sensor
(PHASE)
[Engine is running]
●
Warm-up condition
●
Idle speed
NOTE:
The pulse cycle changes depending on rpm
at idle
1.0 - 4.0V
[Engine is running]
●
Engine speed: 2,000 rpm
1.0 - 4.0V
15
W
Knock sensor (bank 1)
[Engine is running]
●
Idle speed
Approximately 2.5V
16
W
A/F sensor 1 (bank 1)
[Engine is running]
●
Warm-up condition
●
Idle speed
Approximately 3.1V
35
R
Approximately 2.6V
56
R/L
Approximately 2.3V
75
BR
Approximately 2.3V
TER-
MINAL
NO.
WIRE
COLOR
ITEM
CONDITION
DATA (DC Voltage)
PBIB1041E
PBIB1042E
PBIB1039E
PBIB1040E
EC-108
TROUBLE DIAGNOSIS
21
22
23
40
41
42
44
63
W/B
Y
R/L
BR
G
B/R
BR
L
Fuel 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 idle
BATTERY VOLTAGE
(11 - 14V)
[Engine is running]
●
Warm-up condition
●
Engine speed: 2,000 rpm
BATTERY VOLTAGE
(11 - 14V)
24
SB
A/F sensor 1 heater
(bank 2)
[Engine is running]
●
Warm-up condition
●
Idle speed
Approximately 5V
25
G
Heated 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 load
0 - 1.0V
[Ignition switch: ON]
●
Engine stopped
[Engine is running]
●
Engine speed: Above 3,600 rpm
BATTERY VOLTAGE
(11 - 14V)
28
LG
Cooling fan relay-1 (Middle)
[Engine is running]
●
Cooling fan: Not operating
BATTERY VOLTAGE
(11 - 14V)
[Engine is running]
●
Cooling fan: Middle speed or high speed
operating
0 - 1.0V
29
PU
VIAS control solenoid valve
[Engine is running]
●
Selector lever: P or N
0 - 1.0V
[Engine is running]
●
Selector lever: D
●
Engine speed: Below 5,000 rpm
BATTERY VOLTAGE
(11 - 14V)
[Engine is running]
●
Engine speed: Above 5,000 rpm
0 - 1.0V
32
G
EVAP control system pres-
sure sensor
[Ignition switch: ON]
Approximately 1.8 - 4.8V
TER-
MINAL
NO.
WIRE
COLOR
ITEM
CONDITION
DATA (DC Voltage)
PBIB0042E
PBIB0043E
PBIB1584E
TROUBLE DIAGNOSIS
EC-109
C
D
E
F
G
H
I
J
K
L
M
A
EC
34
L
Intake 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 speed
Approximately 2.5V
38
G/R
Fuel pump control module
(FPCM) check
[When cranking engine]
Approximately 0V
[Engine is running]
●
Warm-up condition
●
Idle speed
4 - 6V
39
B/R
Fuel pump control module
(FPCM)
[When cranking engine]
0 - 0.5V
[Engine is running]
●
Warm-up condition
●
Idle speed
8 - 12V
45
L/Y
EVAP canister purge vol-
ume control solenoid valve
[Engine is running]
●
Idle speed
BATTERY VOLTAGE
(11 - 14V)
[Engine is running]
●
Engine speed: About 2,000 rpm (More than
100 seconds after starting engine)
11 - 14V
46
60
61
62
65
79
80
81
L/R
GY/R
GY
Y/R
G/R
PU/W
W/R
W/G
Ignition 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 idle
0 - 0.2V
[Engine is running]
●
Warm-up condition
●
Engine speed: 2,000 rpm
0.1 - 0.4V
47
L/W
Sensor power supply
(Throttle position sensor)
[Ignition switch: ON]
Approximately 5V
48
R
Sensor power supply
(EVAP control system pres-
sure sensor)
[Ignition switch: ON]
Approximately 5V
TER-
MINAL
NO.
WIRE
COLOR
ITEM
CONDITION
DATA (DC Voltage)
PBIB0050E
PBIB0051E
PBIB0044E
PBIB0045E
EC-110
TROUBLE DIAGNOSIS
49
L
Sensor power supply
(Refrigerant pressure sen-
sor)
[Ignition switch: ON]
Approximately 5V
50
B
Throttle position sensor 1
[Ignition switch: ON]
●
Engine stopped
●
Selector lever: D
●
Accelerator pedal: Fully released
More than 0.36V
[Ignition switch: ON]
●
Engine stopped
●
Selector lever: D
●
Accelerator pedal: Fully depressed
Less than 4.75V
51
B/Y
Mass air flow sensor
[Engine is running]
●
Warm-up condition
●
Idle speed
1.0 - 1.2V
[Engine is running]
●
Warm-up condition
●
Engine speed: 2,500 rpm
1.6 - 1.9V
53
W
Intake valve timing control
position sensor (bank 2)
[Engine is running]
●
Warm-up condition
●
Idle speed
0 - 1.0V
[Engine is running]
●
Engine speed: 2,000 rpm
0 - 1.0V
55
PU
Heated 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
–
After keeping the engine speed between
3,500 and 4,000 rpm for 1 minute and at idle
for 1 minute under no load
0 - Approximately 1.0V
57
G/Y
A/F sensor 1 (bank 2)
[Engine is running]
●
Warm-up condition
●
Idle speed
Approximately 2.6V
58
G
Approximately 2.3V
76
L/W
Approximately 3.1V
77
GY
Approximately 2.3V
66
R
Sensor ground
(Throttle position sensor)
[Engine is running]
●
Warm-up condition
●
Idle speed
Approximately 0V
67
B
Sensor ground
(MAF sensor, IAT sensor,
ECT sensor, FTT sensor,
EVAP control system pres-
sure sensor, PSP sensor,
ICC steering switch, ASCD
steering switch, Refrigerant
pressure sensor)
[Engine is running]
●
Warm-up condition
●
Idle speed
Approximately 0V
TER-
MINAL
NO.
WIRE
COLOR
ITEM
CONDITION
DATA (DC Voltage)
PBIB2046E
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