5) Measure the voltage between Dg wire terminal and ground.
6) Also, measure the voltage between Dg wire terminal and B/Br
wire terminal.
$
IAT sensor input voltage: 4.5 – 5.5 V
(
+
Dg –
-
Ground)
(
+
Dg –
-
B/Br)
#
09900-25008: Multi-circuit tester set
09900-25009: Needle pointed probe set
'
Tester knob indication: Voltage (
(
)
Is the voltage OK?
Step 2
1) Turn the ignition switch OFF.
2) Remove the air cleaner box. (
!
Page 51)
3) Measure the IAT sensor resistance.
$
IAT sensor resistance: Approx. 2.6 k
Ω
at 20 °C (68 °F)
(Terminal – Terminal)
#
09900-25008: Multi-circuit tester set
)
Tester knob indication: Resistance (
Ω
)
Is the resistance OK?
$
IAT sensor specification
NOTE:
IAT sensor resistance measurement method is the same way as that of the EOT sensor. Refer to DL650
service manual 6-10 for details.
YES
Go to Step 2.
NO
• Loose or poor contacts on the ECM coupler
(Terminal
2
or
B
).
• Open or short circuit in the Dg wire or B/Br wire.
1
V
2
YES
• Dg or B/Br wire open or shorted to ground, or
poor
2
or
B
connection.
• If wire and connection are OK, intermittent trou-
ble or faulty ECM.
• Recheck each terminal and wire harness for
open circuit and poor connection.
• Replace the ECM with a known good one, and
inspect it again.
NO
Replace the IAT sensor with a new one.
Intake Air Temp
Resistance
20 °C (68 °F)
Approx. 2.56 k
Ω
40 °C (104 °F)
Approx. 1.20 k
Ω
60 °C (140 °F)
Approx. 0.61 k
Ω
80 °C (176 °F)
Approx. 0.33 k
Ω
ECM coupler (Harness side)
2
13-26 DL650K7/AK7 (’07-MODEL)
PartShark.com
877-999-5686
Содержание 2005 DL650K5
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