Tuesday, January 21, 2014
Auto Electrical Diagnosis
Problems that occur within an auto electrical system cant be dealt with until you determine whats causing the problems and why. However, with a little information and a few easy-to-use tools such as a voltmeter, nearly anyone can diagnose electrical issues common with some of todays automobiles.
Diagnose Voltage
Voltage problems within an auto electrical system are often caused by loose connections in the wiring. A bad ground connection or a faulty switch could also be the culprit. Doing a voltage drop test using a voltmeter will allow you to check for a drop in voltage, which indicates trouble if the drop is greater than 0.4 volts.
Diagnose Circuits
Because all circuits have to have voltage to power products, the first thing to do when diagnosing circuit issues in an auto electrical system is to check for voltage at the head of the circuit. No voltage here indicates problems with areas that supply the circuit with voltage, such as the power relay.
Diagnose Circuit Breakers
A test can be done to help determine if a circuit breaker has gone bad. By bypassing the circuit breaker using a jumper wire, it can then be attached directly to the circuit in order to test it. If the circuit is found to be in working order after bypassing the circuit breaker, then the circuit breaker is the problem and will have to be replaced.
