BATTERY WILL NOT CHARGE

1989 Dodge Colt

Tiny

z7one

September, 27, 2012 AT 11:59 PM

I have a 1989 1.5l Colt, Battery will not charge. I have 15.5 volts coming off the Alternator but I only see 11.75 Volts on Battery when car is running. I think it could be voltage regulator but don't have any wiring schematic to know. Any help appreciated, Thanks.

FOUND 907 RELATED QUESTIONS

20 Answers

Tiny

saturntech9

September, 28, 2012 AT 12:16 AM

Where are you measuring 15.5 volts at the alterator?

Tiny

z7one

September, 28, 2012 AT 12:29 AM

I measured the voltage from the white large wire at alternator.

There are 2 other small wires, blue and yellow which I did not measure, I figured those went to instrument cluster, etc.

Tiny

saturntech9

September, 28, 2012 AT 12:40 AM

Engine off key on you should have battery voltage at the two white wires with a red stripe and the red wire to the alternator?The white wire goes to the gauge.

Tiny

z7one

September, 28, 2012 AT 12:51 AM

The two white wires go to the same lug and it has 12.45 volts. I have had the battery on charge so it is up a little from my earlier post.

Tiny

saturntech9

September, 28, 2012 AT 12:56 AM

Alright does the red wire have battery voltage also?

Tiny

z7one

September, 28, 2012 AT 1:09 AM

I don't have a red wire. Please see attached picture.

Tiny

saturntech9

September, 28, 2012 AT 1:16 AM

Iam justing going by my wire diagram I have I would say the blue wire should have battery voltage also and the yellow wire is for the battery light.

Tiny

z7one

September, 28, 2012 AT 1:27 AM

12.06 on yellow wire, nothing on blue

Tiny

saturntech9

September, 28, 2012 AT 1:37 AM

Do you have a colt or colt vista wagon or sedan?

Tiny

z7one

September, 28, 2012 AT 1:41 AM

Yes it is. Sorry I didn't mention that earlier.

Please login or register to post a reply.

Battery Replacement Guide
Battery Replacement Ford Escape 2000-2006
Battery Replacement Ford Contour 1996-2000
Battery Replacement Honda Civic 2006-2011
Battery Replacement
Alternator testing done right