Step 3
1) Turn the ignition switch OFF.
2) Remove the IAP sensor.
3) Connect the vacuum pump gauge to the vacuum port of the
IAP sensor.
4) Arrange 3 new 1.5 V batteries in series 1 (check that total -
voltage is 4.5 – 5.0 V) and connect - terminal to the ground -
terminal 2 and + terminal to the Vcc terminal 3.
5) Check the voltage between Vout 4 and ground. Also, check if
voltage reduces when vacuum is applied up to 400 mmHg by
using vacuum pump gauge. (!below)
# 09917-47011: Vacuum pump gauge
09900-25008: Multi-circuit tester set
' Tester knob indication: Voltage (()
Is the voltage OK?
Output voltage (Vcc voltage 4.5 – 5.0 V, ambient temp. 20 –
30 °C, 68 – 86 °F)
YES
• G/B, R or B/Br wire open or shorted to ground,
or poor 3, 5 or B connection.
(Front cylinder side)
• R, B/Br or G/Y wire open or shorted to ground,
or poor 5, B or L connection.
(Rear cylinder side)
• 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
If check result is not satisfactory, replace the IAP
sensor with a new one.
ALTITUDE
(Reference)
ATMOSPHERIC
PRESSURE
OUTPUT
VOLTAGE
(ft) (m) (mmHg) kPa (V)
0
2 000
0
610
760
707
100
94
3.4 – 4.0
2 001
5 000
611
1 524
707
634
94
85
3.0 – 3.7
5 001
8 000
1 525
2 438
634
567
85
76
2.6 – 3.4
8 001
10 000
2 439
3 048
567
526
76
70
2.4 – 3.1
3
ECM coupler (Harness side)
3
13-22 DL650K7/AK7 (’07-MODEL)
PartShark.com
877-999-5686
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