90 geo prism charging system problem

results2 · 04-12-2009, 07:16 PM

I have a 90 Geo Prizm.

The problem started after accidently touching the + and - pole with the wrench while removing the battery cable.

Shortly afterward, the battery and brake guages illuminated and stays on. I visually checked the fuses and they appear to be ok (including the Alt, Am1,and Am2 fuses at the end of the battery cable).

I disconnected the neg. battery cable with the engine running and the engine turned off.

I took the alternater to autozone and the machine indicates that the alternater is functioning properly.

Could it be a fusible link? If so, where would it be located.

**mack1** · 04-13-2009, 05:59 AM

Hi results2 and welcome to TSF,

It could very well be a fusible link. The link will be inline with the wire going from the alternator to the battery cable. It is about 3 inches long and 1/4 inch in diameter or less.

To tell if it is blown, either remove the positive battery cable and measure the resistance of the wire to the alternator or use a test lamp. To use the test lamp, leave the battery connected and test for voltage at the alternator terminal.

Hope this helps.

Best regards,
Mack1

04-12-2009, 07:16 PM	#1 (permalink)
results2 Registered User Join Date: Apr 2009 Posts: 1 OS: xp	90 geo prism charging system problem I have a 90 Geo Prizm. The problem started after accidently touching the + and - pole with the wrench while removing the battery cable. Shortly afterward, the battery and brake guages illuminated and stays on. I visually checked the fuses and they appear to be ok (including the Alt, Am1,and Am2 fuses at the end of the battery cable). I disconnected the neg. battery cable with the engine running and the engine turned off. I took the alternater to autozone and the machine indicates that the alternater is functioning properly. Could it be a fusible link? If so, where would it be located.

04-13-2009, 05:59 AM	#2 (permalink)
mack1 TSF Articles Team Join Date: Nov 2007 Location: Texarkana, Texas Posts: 1,245 OS: xp sp3 My System	Re: 90 geo prism charging system problem Hi results2 and welcome to TSF, It could very well be a fusible link. The link will be inline with the wire going from the alternator to the battery cable. It is about 3 inches long and 1/4 inch in diameter or less. To tell if it is blown, either remove the positive battery cable and measure the resistance of the wire to the alternator or use a test lamp. To use the test lamp, leave the battery connected and test for voltage at the alternator terminal. Hope this helps. Best regards, Mack1 __________________ "If you like yourself others will like you also" me "Don't drink downstream from the herd" Will Rogers Submit New Articles Here