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radio in 1997 Corolla not working consistently


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jacobc
New User

Apr 23, 2012, 10:04 PM

Post #1 of 7 (2775 views)
radio in 1997 Corolla not working consistently Sign In

Vehicle info:

1997 Toyota Corolla, about 140,000 miles

The radio in our 1997 Corolla sometimes refuses to turn on. This is the original radio that came with the car. When the engine is off and the radio is running off the battery, it always works. But when the engine is on, it often doesn't turn on, although occasionally it does (it seems to be random). So it seems to be a contact problem, not a problem with the radio itself. What can we do to fix this and have the radio works consistently? Thanks a lot for your help.


nickwarner
Veteran / Moderator
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Apr 24, 2012, 6:48 PM

Post #2 of 7 (2708 views)
Re: radio in 1997 Corolla not working consistently Sign In

You need to verify the power at the ignition hot wire while this isn't working. If it has the proper voltage, backpin the ground wire and run a jumper straight to battery ground. If the radio works like a charm, you have a bad ground. If not, you have a bad radio.


Discretesignals
Ultimate Carjunky / Moderator
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Apr 24, 2012, 7:46 PM

Post #3 of 7 (2703 views)
Re: radio in 1997 Corolla not working consistently Sign In

Just don't jumper the wrong wire to ground.







Since we volunteer our time and knowledge, we ask for you to please follow up when a problem is resolved.

(This post was edited by Discretesignals on Apr 24, 2012, 7:50 PM)


jacobc
New User

Apr 25, 2012, 12:30 PM

Post #4 of 7 (2689 views)
Re: radio in 1997 Corolla not working consistently Sign In

Can you please explain in detail exactly how to do these things?


nickwarner
Veteran / Moderator
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Apr 25, 2012, 4:54 PM

Post #5 of 7 (2682 views)
Re: radio in 1997 Corolla not working consistently Sign In

You need a wiring diagram of your stereo. You unplug the connector and use a 12v test light to check for power at the battery constant wire with the key off, the Ign hot wire key on, and if you have it there you plug the connector back in, backprobe the harness at the ground wire pin (paper clip works good for that) and jump that directly to battery ground. If the stereo works you know you have a ground issue. If no power on your power tests post back and we go from there


Discretesignals
Ultimate Carjunky / Moderator
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Apr 26, 2012, 4:53 PM

Post #6 of 7 (2670 views)
Re: radio in 1997 Corolla not working consistently Sign In

I hope I didn't scare the OP....Angelic





Since we volunteer our time and knowledge, we ask for you to please follow up when a problem is resolved.


nickwarner
Veteran / Moderator
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Apr 27, 2012, 2:43 PM

Post #7 of 7 (2656 views)
Re: radio in 1997 Corolla not working consistently Sign In

You're mean DS. I bet you hide in bushes on Halloween just to try to make some little kid pee his pants. Mean mean moderator you!






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