Testing Continuity/Resistance - Polaris Sportsman 850 Service Manual

ELECTRICAL

TESTING CONTINUITY/RESISTANCE

Testing using the Ohmmeter function of your DMM is one
of the first things you will do when troubleshooting an
electrical issue. It is especially convenient when the
wiring diagram provides a resistance spec for the
component in the circuit you are diagnosing. It can
quickly give you a good idea if you simply need to
replace a part, or if there might be another circuit issue.
Using the following points in conjunction with your DMM
owner's manual will ensure your resistance testing is
always accurate:
• Only measure resistance on an isolated part of the
circuit. This means if you are testing internal resistance
of a component, it cannot be connected to the
harness. If you are measuring a wire (typically from the
ECU to a sensor) both the sensor and ECU would
need to be unplugged. Most Ohmmeters provides a
precise amount of current to determine resistance. Any
other sources will make your reading inaccurate.
• Ensure you are making good contact by using the
proper terminal adapters. , page 11.9
• If you are not using a self ranging meter, double check
your range setting.
• If your continuity is under 1 ohm, leave the harness
disconnected, and move on to testing for shorts to
ground , page 11.11 and shorts to voltage , page 11.12
For a video demonstration, scan the QR code below, or
right click it and select "open in new tab".
11.10