Question about Cars & Trucks
Use the ohms function and test for electrical resistance in the wire. Pull off at both ends. Caution: when testing with ohmmeter, make sure you are never testing a wire that may have power in it- it can ruin the ohmmeter. So pull both ends off, hook your leads to each end, turn meter function to ohms- the icon looks like a horseshoe, forgot it's actual name-and check resistance-should be of low ohms value .An infinity symbol, or an OL, when testing means circuit or wire is open-not connected but broken, infinite resistance to current passage. Practice with any piece of wire or several, and see what ohms value you get, the lower the resistance, the easier for current to pass through a wire or electrical connector. A single wire of a few feet long should be a few single ohms, like 20 or less. Ohms can be measured in ohms, kilo ohms, or mega ohms. Spark plug wires have acceptable kilo ohms allowance of resistance and still be good.
Posted on Jan 19, 2013
Clean your battery terminals!!! To test a wire for a ground fault, you put either lead tip to a clean point on the block of the engine and the other to one end of the wire to be tested. The Meter setting should be on Ohms. The reading should be close to infinity if ok, and close to zero if shorted. The wire should be pulled from BOTH ends to check for opens and your meter should be connected with one lead at each end of the wire.
Posted on Jan 19, 2013
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Posted on Jan 02, 2017
DTC 63 Will Set When
No voltage is supplied by the ECM through the EST “B” line while reference pulses are received by the ECM from the crankshaft position sensor
check white wire terminal B on ignition coil to ECM terminal C14 for open circuit or short to ground while disconnected if thats ok check for voltage signal at B while cranking no signal ECU faulty. voltage signal also on A terminal while cranking and check earth terminal C to body no higher than 5 Ohms
power is terminal D 12V
if getting power, earths good, and both signal voltages are going into coil pack, coil pack is faulty.
Posted on Jun 21, 2009
start at the coil with dvom or test light to see if there is power to the coil when you turn the key on and the power should be there during cranking the best way is the dvom when you check battery voltage with digital volt meter at the battery record that amount then check the red wire at the coil should be 0.50 volts within battery recorded voltage if its allot less check voltage at ign switch should read real close to battery voltage this is called battery voltage drop testing if you google voltage drop testing it will exsplain further. i hope this helps Thunderboltz.
Posted on Jan 13, 2010
Ground goes through the master switch on the drivers side. Bad master switch can cause the other windows not to work. Don't forget to check the "window lock" switch in the master switch, which shuts off the other 3 windows.
Posted on Jan 16, 2010
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