Electrical problem after running a bad alternator

Tiny
LOGANL
  • MEMBER
  • 2000 HONDA CIVIC
  • 4 CYL
  • 2WD
  • AUTOMATIC
  • 200,000 MILES
I guess I was running on a bad alternator for a while, while it was bad all my dash lights stopped working, all windows stopped working except for sunroof, SRS light was blinking and pulsating headlights. Just put in a new alternator, cars running great, SRS light stopped and the pulsating stopped but I still have the issue of the windows and dash lights. Any idea where to start now?
Tuesday, March 21st, 2017 AT 7:19 PM

8 Replies

Tiny
CARADIODOC
  • MECHANIC
  • 33,752 POSTS
Check for blown fuses under the hood, and inside the car.
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Tuesday, March 21st, 2017 AT 7:31 PM
Tiny
LOGANL
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  • 4 POSTS
They all test good, checked all wires too and there's no sign of wear. Sorry, should of added that to post.
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Tuesday, March 21st, 2017 AT 7:37 PM
Tiny
STEVE W.
  • MECHANIC
  • 13,002 POSTS
Which Civic do you have? CX, DX? Looks like eight different versions for that year. Also appears to be close to ten fuses for the windows and dash. It is also possible it is a ground but need to know exact vehicle for that. Thanks.
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Tuesday, March 21st, 2017 AT 7:55 PM
Tiny
CARADIODOC
  • MECHANIC
  • 33,752 POSTS
Under the dash is a power window relay. Feel if that clicks when you turn on the ignition switch. If it does, at least one of the passenger windows should work. If it does't click, there is a blown 7.5 amp fuse # 6, also under the dash.
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Tuesday, March 21st, 2017 AT 7:56 PM
Tiny
LOGANL
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  • 4 POSTS
EX, tried fuse #6 no differance
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Tuesday, March 21st, 2017 AT 8:55 PM
Tiny
STEVE W.
  • MECHANIC
  • 13,002 POSTS
How about a circuit test? Go under the hood and locate the power window fuse in the fuse box on the passenger side. Check it with a test light for voltage on both sides. Now locate the White with Blue stripe wire coming out of that box and check it for power. Next find the relay under the dash and check there for 12+. Turn the key on and check the individual fuses 7, 8, 10, 11 in the under dash fuse panel. If you have power to them the relay is OK, The most likely suspect is a failed master switch.

For the dash lights, Fuse 30 powers all the illumination lights, dash, shifter, heater so if the other lights are working the issue is probably the dimmer control or the dimmer circuit in the dash.
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Wednesday, March 22nd, 2017 AT 12:48 AM
Tiny
LOGANL
  • MEMBER
  • 4 POSTS
Is it possible for all the window motors to go bad, because I took door panels off and all motors are getting power when I activate the switches
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Saturday, April 22nd, 2017 AT 6:25 PM
Tiny
CARADIODOC
  • MECHANIC
  • 33,752 POSTS
If you find 12 volts on a wire to a window motor, check the other wire too. If you have 12 volts on both wires at the same time, regardless which way the switch is pressed, you are missing the ground circuit. The best suspect for that is a broken wire between the driver's door hinges.
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Saturday, April 22nd, 2017 AT 7:19 PM

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