Engine General Information and Diagnosis: 1A-69
3
ECM voltage check
1) Disconnect connector from MAF and IAT sensor with
ignition switch turned OFF.
2) Check for proper connection to MAF and IAT sensor at
“BLK/YEL” and “ORN” wire terminals.
3) If OK, then turn ON ignition switch, measure voltage
between “BLK/YEL” wire terminal of MAF and IAT
sensor connector (1) and vehicle body ground.
Is voltage about 4 – 6 V?
Go to Step 6.
Go to Step 4.
4
IAT short circuit check
1) Disconnect connectors from ECM with ignition switch
turned OFF.
2) Measure resistance between “BLK/YEL” wire terminal of
MAF and IAT sensor connector and vehicle body
ground.
Is resistance infinity?
Go to Step 5.
“BLK/YEL” wire is
shorted to ground
circuit.
If wire is OK, substitute
a known-good ECM and
recheck.
5
IAT short circuit check
1) Turn ON ignition switch.
2) Measure voltage between “BLK/YEL” wire terminal of
MAF and IAT sensor connector and vehicle body
ground.
Is voltage about 0 V?
Go to Step 6.
“BLK/YEL” wire is
shorted to other circuit.
If wire is OK, substitute
a known-good ECM and
recheck.
6
IAT sensor for performance check
1) Check IAT sensor according to “Mass Air Flow (MAF)
and Intake Air Temperature (IAT) Sensor Inspection: in
Section 1C”.
Is it in good condition?
Substitute a known-
good ECM and recheck.
Replace MAF and IAT
sensor.
Step
Action
Yes
No
I4RS0A110023-
Содержание SWIFT RS415 2017
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Страница 316: ...1D 53 Engine Mechanical Main Bearings Crankshaft and Cylinder Block Components S4RS0A1406035 I4RS0A140016...
Страница 331: ...Engine Lubrication System 1E 2 I3RH0B150001...
Страница 404: ...1K 6 Exhaust System...
Страница 452: ...2D 8 Wheels and Tires...
Страница 464: ...3A 11 Drive Shaft Axle...
Страница 650: ...5A 110 Automatic Transmission Automatic Transaxle Assembly Components S4RS0A5106025 I3RM0B510053...
Страница 722: ...5B 13 Manual Transmission Manual Transaxle Assembly Components S4RS0A5206028 I4RS0A520013...
Страница 760: ...5C 14 Clutch...
Страница 762: ...6 ii Table of Contents Special Tool 6C 38...
Страница 812: ...6C 39 Power Assisted Steering System...
Страница 860: ...7B 35 Air Conditioning System...
Страница 1069: ...Wiring Systems 9A 62 GEAR ABS BELT DOOR CHARGE IMMOBI BRAKE FUEL RADIO 15A 40 32 5 WHT RED J B G33 G28 1 2 I4RS0A910943...
Страница 1192: ...9L 5 Paint Coatings I4RS0A9C0004 A Apply sealant...
Страница 1198: ...9M 2 Exterior Trim Splash Guard If Equipped Components S4RS0A9D06006 A A A A 1 I4RS0A980010 1 Side sill splash guard...
Страница 1255: ...Prepared by 1st Ed Dec 2004...
Страница 1256: ...21 mm 99500 63J00 24E 99500 63J00 24E SERVICE MANUAL VOLUME 1 OF 2 SERVICE MANUAL VOL 1 OF 2...
Страница 1257: ...29 mm 99500 63J00 24E 99500 63J00 24E SERVICE MANUAL VOLUME 2 OF 2 SERVICE MANUAL VOL 2 OF 2...