Equus 3140 - Scan Tool CanOBD2&1 Kit Bedienungsanleitung PDF herunterladen (Seite 20)

18 CanOBD2&1

Preparation for Testing

BEFORE YOU BEGIN

The CanOBD2&1 Scan Tool

aids in monitoring electronic-

and emissions-related faults in

your vehicle and retrieving

fault codes related to malfunc-

tions in these systems.

Mechanical problems such as

low oil level or damaged

hoses, wiring or electrical connectors can cause poor engine perform-

ance and may also cause a fault code to set. Fix any known mechan-

ical problems before performing any test. See your vehicle’s service

manual or a mechanic for more information.

Check the following areas before starting any test:

■ Check the engine oil, power steering fluid, transmission fluid (if

applicable), engine coolant and other fluids for proper levels.Top off

low fluid levels if needed.

■ Make sure the air filter is clean and in good condition.Make sure all

air filter ducts are properly connected. Check the air filter ducts for

holes, rips or cracks.

■ Make sure all engine belts are in good condition.Check for cracked,

torn, brittle, loose or missing belts.

■ Make sure mechanical linkages to engine sensors (throttle,

gearshift position, transmission, etc.) are secure and properly con-

nected. See your vehicle’s service manual for locations.

■ Check all rubber hoses (radiator) and steel hoses (vacuum/fuel) for

leaks, cracks, blockage or other damage. Make sure all hoses are

routed and connected properly.

■ Make sure all spark plugs are clean and in good condition. Check

for damaged, loose, disconnected or missing spark plug wires.

■ Make sure the battery terminals are clean and tight. Check for cor-

rosion or broken connections. Check for proper battery and charg-

ing system voltages.

■ Check all electrical wiring and harnesses for proper connection.

Make sure wire insulation is in good condition, and there are no

bare wires.

■ Make sure the engine is mechanically sound. If needed, perform a

compression check, engine vacuum check, timing check (if applica-

ble), etc.

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Equus 3140 - Scan Tool CanOBD2&1 Kit Bedienungsanleitung Seite 20