What is a battery saver relay.

Steve Delcristo

Asked by May 28, 2014 at 08:59 PM about the 1999 Mercury Grand Marquis 4 Dr LS Sedan

Question type: General

My altnater plug keeps giving 12.1
volts insted of 14 volts? We're is the
computer to those three cables?
1999 grand marqui.

2 Answers

Tracy Hooks

Here's a diagram of your charging system. I'm not sure of what info you need. There is no Battery Saver Relay - at least not one that is serviceable - there are add-on's for police packages.

Steve Delcristo

Thanks for diagram. I have new altenator , new battery . New altenator plug. New cable to fuse box from altenator. Still getting 12 v from altenator , I need 14 v to charge batt. Can't figure it out, mabey faulty ignition. Don't know. Need help. Thanks

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