Page 1 of 1
Adjust voltmeter
Posted: Fri Feb 05, 2016 12:57 pm
by jamescarruthers
I saw a post on here within the last year about adjusting the voltmeter in the car. Mine has been reading 8-9V for a while and is obviously lying. I thought I'd try a tweak before replacing.
Can anyone else remember it? I have browsed and searched but with no luck.
Re: Adjust voltmeter
Posted: Sat Feb 06, 2016 9:15 pm
by brinkie
Re: Adjust voltmeter
Posted: Sat Feb 06, 2016 9:30 pm
by jamescarruthers
Excellent, thank you. I will have a go soon at this. Hope it's not broken as I can understand why it would just drop down so low!
Re: Adjust voltmeter
Posted: Sat Feb 06, 2016 10:14 pm
by brinkie
I would try and measure the battery voltage first with a digital multimeter, just in case the voltage gauge was right after all...
If you want to calibrate the lower end of the range without a variable power supply, use a 9V battery.
Re: Adjust voltmeter
Posted: Sat Feb 06, 2016 10:38 pm
by jamescarruthers
What is "19", between the key and pin 5. A resistor?
Re: Adjust voltmeter
Posted: Sat Feb 06, 2016 11:07 pm
by brinkie
A fuse. The actual fuse depends on model year, there are three different fusebox layouts if I recall correctly.