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EC-1040
[YD (WITH EURO-OBD)]
TROUBLE DIAGNOSIS
48
49
Y/R
R
Fuel rail pressure sensor
[Engine is running]
● Warm-up condition
● Idle speed
1.7 - 2.0V
[Engine is running]
● Warm-up condition
● Engine speed: 2,000 rpm
2.0 - 2.3V
50 PU
Fuel pump temperature
sensor
[Engine is running]
● Warm-up condition
Approximately 0.3 - 5.3V
Output voltage varies with fuel
pump temperature
51 L/OR
Engine coolant tempera-
ture sensor
[Engine is running]
● Warm-up condition
Approximately 0.3 - 5.3V
Output voltage varies with engine
coolant temperature
52 Y Turbocharger boost sensor
[Engine is running]
● Warm-up condition
● Idle speed
2.3 - 2.6V
[Engine is running]
● Warm-up condition
● Engine speed: 2,000 rpm
2.5 - 2.8V
53 Y
Refrigerant pressure sen-
sor
[Engine is running]
● Warm-up condition
● Both A/C switch and blower fan switch: ON
(Compressor operates)
1.0 - 4.0V
54 W Mass air flow sensor
[Ignition switch: ON] Approximately 0.7V
[Engine is running]
● Warm-up condition
● Idle speed
1.6 - 1.9V
[Engine is running]
● Warm-up condition
● Engine is revving from idle to about 4,000
rpm.
1.6 - 1.9V to Approximately 4.3V
(Check for liner voltage rise in
response to engine being
increased to about 4,000 rpm)
55 G
Intake air temperature sen-
sor
[Engine is running]
● Warm-up condition
Approximately 0.3 - 5.2V
Output voltage varies with intake
air temperature
56 P
Front exhaust gas temper-
ature sensor
[Engine is running]
Approximately 0.3 - 5.3V
Output voltage varies with front
exhaust gas temperature
57 SB
Rear exhaust gas temper-
ature sensor
[Engine is running]
Approximately 0.3 - 5.3V
Output voltage varies with rear
exhaust gas temperature
58 PU
Differential exhaust pres-
sure sensor
[Engine is running]
● Warm-up condition
● Idle speed
Approximately 1.3V
[Engine is running]
● Warm-up condition
● Engine speed: 2,000 rpm
Approximately 1.5V
63 W
Fuel rail pressure sensor
power supply
[Ignition switch ON] Approximately 5.3V
TERMI-
NAL
NO.
WIRE
COLOR
ITEM CONDITION
DATA
(DC Voltage and Pulse Signal)
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