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Questions tagged [multimeter]

A multimeter is an electrical troubleshooting tool that typically measures AC and DC volts, amps and ohms.

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2answers
82 views

Electrical Diagnostic Procedural Lists [closed]

Post your general/specific Testing/Diagnostics Procedural Lists for Automotive Electrical Systems. These procedures are intended to target vehicles with modern 12V systems. The format of the site ...
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3answers
309 views

What is the proper scale to use when measuring infinite resistance

I have a Hyundai Sonata EF (2002 - 2005) model that has problems starting. The service manual says to ( see picture attached). What is the proper scale on the DMM to use to measure for infinite ...
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1answer
152 views

Block heater or cord?

I noticed that my block heat didn't seem to be working on my 2014 Kia rio. I used a multimeter on omhs to check the resistance at the plug. I gave me me no reading aka open circuit. Then I ...
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2answers
672 views

Blown fuse on car by using multimeter

I am currently installing a dash cam (Thinkware F770) on my car (2017 Ford Mustang EcoBoost). The camera comes with an optional hardwiring kit so it will stay on even if the car has been parked and ...
7
votes
2answers
110 views

Why do dealers want their technicians to use True RMS multi meters?

Dealers, particularly for General Motors want their technicians to use True RMS multi meters such as the FLUKE 87V. There are other meters made by FLUKE such as the 88V, which is an "Automotive ...
12
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3answers
4k views

How to test a bolted-in heavy duty 50a / 80a / 100a fuse with a multimeter without removing it?

I want to check if this particular 50 amp fuse on a RAV4 (1998 first generation) is blown or not. Just looking, it's hard to tell because of what I assume are blue-green deposits on copper (this is ...
7
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1answer
296 views

Can I use a digital multimeter in resistance mode on a “no-load” circuit?

While this question is probably more at home on EE.SE, the implications can be quite profound when troubleshooting automotive problems. If I want to test for continuity on a 12 V circuit with next to ...
5
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4answers
6k views

How to Test an Ignition Coil with a Multimeter

I have a 98 Mazda 626 GF and I'd like to test the ignition coils with a multimeter to see if any of them are starting to fail. The car has ECU controlled timing / ignition and there are two coils, ...
5
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3answers
1k views

Multimeter to check car battery current

short background, my car battery will often be too flat to start the car if I don't use it for about 48 hours. Worst it happened the other day after leaving it at airport car park for 4 days and come ...
15
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3answers
1k views

Multimeter - Basic Functionality and Howto

Multimeters I'm looking for some responses regarding multimeter basics for the site tag-wiki to point OP's at when we want them to use one. The question is; What are the basic functions of a ...
14
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5answers
845 views

How do you test analogue electrical circuits?

When trying to diagnose problems with conventional analogue electrical circuits, such as lights, speakers, heated rear windows, etc, as well as short-circuits and unexplained current draws, it can be ...
4
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1answer
979 views

Battery high voltage

I measured my "cigar socket / outlet" with a multimeter. Instead of 12v it had 19v. Is this normal? Is it my voltage regulator, alternator, battery that has problems? Car: Peugeot 307, 2.0 XSI 2003 ...
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2answers
4k views

Is this the correct procedure for a stator test?

Stator Test I have a 2007 DL 1000 V-Strom: I followed the following process while checking the stator: Put multimeter to VAC Tested the three phases of the stator connector plugged into a new ...