Craftsman 3100iSC Manual De Usuario

 

 

 

 

 

 

 

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The diagnostic tool aids in mon-
itoring electronic- and emissions- 
related faults in your vehicle and 
retrieving fault codes related to 
malfunctions in these systems. 
Mechanical problems such as 
low oil level or damaged hoses, 
wiring or electrical connectors can cause poor engine performance and 
may also cause a fault code to set. Fix any known mechanical 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 connected. 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 
corrosion or broken connections. Check for proper battery and 
charging 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.