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Does the engine need to be running when you disconnect the positive battery cable to shut off the check engine light?
Wiki User
∙ 13y ago
No. To erase codes form an OBD-1 vehicle (made before 1996), the engine does not need to be running.
On a side note, NEVER disconnect the battery while the engine is running; it will damage the computer.
Wiki User
∙ 13y ago
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I have replaced the alternator starter and the solenoid on my 1991 Ford Ranger and when you disconnect the battery cable it kills the engine. What else can be wrong?
Never disconnect a battery while an engine is running!
How do you test an alternator on motorcycle?
put a voltmeter on the battery and test voltage, then start the cycle and check again. A battery at rest should be at about 13 volts, with the engine running it will be at 14 or above. to be sure disconnect the positive battery terminal while running, if there is still good volts there, or the engine does not die it is ok.
Dash Lights Going on and off Headlights dim when driving along.?
I'd check your alternator. Disconnecting the positive terminal while the engine is running will tell you. If the engine dies when you disconnect the battery, it's your alternator. If it keeps running it's something else, like your battery. I had the same problem.
Reset start engine light on 2001 Mitsubishi eclipse?
disconnect the positive connector on the battery
How do you tell if Alternator is bad?
Get engine running. While the engine is running disconect the POSITIVE termninal from the battery. If the engine dies, the Alterntor is bad.
How do you reset the service engine light on your 1992 wrangler?
Disconnect the POSITIVE battery cable and touch it to the negative terminal OR disconnect the POSITIVE battery cable for about 30 minutes (either way drains the capacitors in the electrical system)
How do i clear check engine light on 2002 elantra?
Disconnect the positive battery cable for a couple of minutes.
How can you reset your check engine light on your 2002 Mazda B2300?
disconnect the positive battery cable then reconnect.
If you disconnect your battery will your 92 Mercury Sable stay running?
If your alternator is good it should stay running until your engine dies from no fuel.
How do you get your check engine to go out?
disconnect your battery's positive terminal, Wait a couple of minutes then reconnect. All done.
How do you reset the check engine light on a 2001 Dodge Dakota?
disconnect the positive battery cable for about 10 minutes
92 mx3 and cant shut off the check engine light?
disconnect positive battery cable for five minutes.
