testing for the existence of ballast resistor in my car

[hueyhoolihan]

Originally Posted by glennpm

All you have to do is move either the red-black wire or the red wire connected to the resistor so both wires are attached to the same resistor post.





If you wish to check the resistance, disconnect the red wire from the coil. Now check the resistance from the ignition switch to the red wire end you disconnected, noting that the resistance will rise as it heats up.

ah!!! i think i see...

assuming the resistor is cold, when i turn on the ignition switch the resistance will be at it's lowest and steadily increase as time passes. can we assume that to make a second test, one would have to wait for it to cool down? and can i assume that it cools very quickly indeed, such that once the voltage is removed, restarting these cars BITD was not problematical?