Infiniti Q45. Manual - part 368
TROUBLE DIAGNOSIS
EC-111
C
D
E
F
G
H
I
J
K
L
M
A
EC
68
L
Sensor power supply
(Power steering pressure
sensor)
[Ignition switch: ON]
Approximately 5V
69
W
Throttle position sensor 2
[Ignition switch: ON]
●
Engine stopped
●
Selector lever: D
●
Accelerator pedal: Fully released
Less than 4.75V
[Ignition switch: ON]
●
Engine stopped
●
Selector lever: D
●
Accelerator pedal: Fully depressed
More than 0.36V
70
P
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
72
W
Intake valve timing control
position sensor (bank 1)
[Engine is running]
●
Warm-up condition
●
Idle speed
0 - 1.0V
[Engine is running]
●
Engine speed: 2,000rpm
0 - 1.0V
73
Y/B
Engine coolant temperature
sensor
[Engine is running]
Approximately 0 - 4.8V
Output voltage varies with
engine coolant temperature.
74
B
Heated 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
–
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
78
OR
Sensor ground
(Heated oxygen sensor 2)
[Engine is running]
●
Warm-up condition
●
Idle speed
Approximately 0V
82
L
Sensor ground
(APP sensor 1)
[Engine is running]
●
Warm-up condition
●
Idle speed
Approximately 0V
83
L
Sensor ground
(APP sensor 2)
[Engine is running]
●
Warm-up condition
●
Idle speed
Approximately 0V
84
Y/B
Electrical load signal
(Headlamp switch)
[Ignition switch: ON]
●
Lighting switch: 2nd position
BATTERY VOLTAGE
(11 - 14V)
[Ignition switch: ON]
●
Lighting switch: OFF
Approximately 0V
TER-
MINAL
NO.
WIRE
COLOR
ITEM
CONDITION
DATA (DC Voltage)
PBIB2046E