Ohmmeters are used to measure the resistance of circuits and the currents that run through them. These devices are used to detect faulty circuits which could cause malfunctioning of equipment hooked up to them. When you are testing a cam sensor, check your car owner's manual for the acceptable resistance measurements for your specific model. Different car models have different acceptable levels for their cam sensor. Make sure the car is turned off before you test the cam sensor to avoid the risk of an electric shock.
Instructions
1. Zero the ohmmeter by either pressing the center zeroing button or by touching the red and black probes to each other. The ohmmeter should read 0.
2. Connect the red probe to the positive terminal of the cam sensor, and the black probe to the negative terminal. Both terminals should be marked with a plus sign for the positive terminal and a negative sign for the negative terminal.
3. Observe the reading on the ohmmeter, then detach the probes. Cam sensors with faulty resistance measurements should be replaced.
Tags: negative terminal, positive terminal, resistance measurements
