Infiniti F50. Manual — part 365
TROUBLE DIAGNOSIS
EC-101
C
D
E
F
G
H
I
J
K
L
M
A
EC
11
G
Heated oxygen sensor 2
heater (bank 2)
[Engine is running]
●
Engine speed is below 3,600 rpm after the
following conditions are met.
–
Warm-up condition
–
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 is above 3,600 rpm.
BATTERY VOLTAGE
(11 - 14V)
12
W/L
Counter current return
[Ignition switch “ON”]
BATTERY VOLTAGE
(11 - 14V)
18
19
20
21
29
30
31
32
Y/R
W/G
GY
W/R
GY/R
PU/W
L/R
G/R
Ignition signal No. 1
Ignition signal No. 2
Ignition signal No. 3
Ignition signal No. 4
Ignition signal No. 5
Ignition signal No. 6
Ignition signal No. 7
Ignition signal No. 8
[Engine is running]
●
Warm-up condition
●
Idle speed
NOTE:
The pulse cycle changes depending on rpm at
idle.
0 - 0.1V
[Engine is running]
●
Warm-up condition
●
Engine speed is 2,000 rpm.
0 - 0.2V
24
G/W
Air conditioner relay
[Engine is running]
●
Both A/C switch and blower switch “ON”
(Compressor operates).
0 - 1.0V
[Engine is running]
●
A/C switch: “OFF”.
BATTERY VOLTAGE
(11 - 14V)
25
B/R
Fuel pump control module
[When cranking engine]
0 - 0.5V
[Engine is running]
●
Warm-up condition
●
Idle speed
8 - 12V
26
OR
Throttle control motor relay
[Ignition switch “OFF”]
BATTERY VOLTAGE
(11 - 14V)
[Ignition switch “ON”]
0 - 1.0V
27
PU
VIAS control solenoid valve
[Engine is running]
●
Selector lever: “P” or “N”
0 - 1.0V
[Engine is running]
●
Selector lever: “D”
BATTERY VOLTAGE
(11 - 14V)
[Engine is running]
●
Engine speed is above 5,000 rpm
0 - 1.0V
28
L
Cooling fan speed control
solenoid valve ground
[Engine is running]
Approximately 0V
TER-
MINAL
NO.
WIRE
COLOR
ITEM
CONDITION
DATA (DC Voltage)
PBIB0044E
PBIB0045E
EC-102
TROUBLE DIAGNOSIS
35
Y/G
MIL
[Ignition switch “ON”]
0 - 1.0V
[Engine is running]
●
Idle speed
BATTERY VOLTAGE
(11 - 14V)
38
W/G
Tachometer signal
[Engine is running]
●
Warm-up condition
●
Idle speed
NOTE:
The pulse cycle changes depending on rpm at
idle.
3 - 6V
[Engine is running]
●
Engine speed is 2,500 rpm.
3 - 6V
39
OR
ASCD communication line
[Engine is running]
●
Idle speed
3 - 6V
41
GY
Fuel pump relay
[Ignition switch “ON”]
●
For a few seconds after turning ignition
switch “ON”
[Engine is running]
0 - 1.0V
[Ignition switch “ON”]
●
More than a few seconds after turning igni-
tion switch “ON”.
BATTERY VOLTAGE
(11 - 14V)
42
W/B
ECM relay
(Self shut-off)
[Engine is running]
[Ignition switch “OFF”]
●
For a few seconds after turning ignition
switch “OFF”
0 - 1.0V
[Ignition switch “OFF”]
●
More than a few seconds after turning igni-
tion switch “OFF”
BATTERY VOLTAGE
(11 - 14V)
43
G/Y
Vacuum cut valve bypass
valve
[Ignition switch “ON”]
BATTERY VOLTAGE
(11 - 14V)
47
R
Cooling fan speed control
solenoid valve
[Engine is running]
●
Idle speed
6.5 - 8V
TER-
MINAL
NO.
WIRE
COLOR
ITEM
CONDITION
DATA (DC Voltage)
PBIB0046E
PBIB0047E
PBIB0048E
PBIB0049E
TROUBLE DIAGNOSIS
EC-103
C
D
E
F
G
H
I
J
K
L
M
A
EC
53
W/G
Ignition switch
[Ignition switch “OFF”]
0V
[Ignition switch “ON”]
BATTERY VOLTAGE
(11 - 14V)
54
L/Y
EVAP canister purge vol-
ume control solenoid valve
[Engine is running]
●
Idle speed
BATTERY VOLTAGE
(11 - 14V)
[Engine is running]
●
Engine speed is about 2,000 rpm (More than
100 seconds after starting engine).
BATTERY VOLTAGE
(11 - 14V)
59
SB
Start signal
[Ignition switch “ON”]
Approximately 0V
[Ignition switch “START”]
9 - 12V
63
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 is 2,000 rpm.
1.0 - 2.0V
TER-
MINAL
NO.
WIRE
COLOR
ITEM
CONDITION
DATA (DC Voltage)
PBIB0050E
PBIB0051E
PBIB0052E
PBIB0053E
EC-104
TROUBLE DIAGNOSIS
73
Y
Intake valve timing control
position sensor (bank 1)
[Engine is running]
●
Warm-up condition
●
Idle speed
NOTE:
The pulse cycle changes depending on rpm at
idle.
0 - 1.0V
[Engine is running]
●
Engine speed is 2,000 rpm.
0 - 1.0V
74
W
Intake valve timing control
position sensor (bank 2)
[Engine is running]
●
Warm-up condition
●
Idle speed
NOTE:
The pulse cycle changes depending on rpm at
idle.
0 - 1.0V
[Engine is running]
●
Engine speed is 2,000 rpm.
0 - 1.0V
80
GY/R
PNP switch
[Ignition switch “ON”]
●
Selector lever: “P” or “N”.
Approximately 0V
[Ignition switch “ON”]
●
Except above position
Approximately 5V
84
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 is 2,000 rpm.
1.0 - 4.0V
TER-
MINAL
NO.
WIRE
COLOR
ITEM
CONDITION
DATA (DC Voltage)
PBIB0054E
PBIB0055E
PBIB0054E
PBIB0055E
PBIB0056E
PBIB0057E
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