27-11-2014, 07:06 AM
Hi Niall,
Are the fuses blowing before you can trace where the fault is?
On more primitive cars, I by-pass the fuse with a test bulb (actually an old 12 volt tyre inflator, cos I can hear it when I can't see it). If the test bulb lights up brightly you have a direct short, but you will not set the car on fire. You then start disconnecting things until the bulb goes out, which means you have found the Perp.
If bulb only lights up at half strength, you don't have a short, and bulb is in series with whatever you have switched on. Intermittant fault. Bummer!
Modern fuses are awkward to by-pass.
602
Are the fuses blowing before you can trace where the fault is?
On more primitive cars, I by-pass the fuse with a test bulb (actually an old 12 volt tyre inflator, cos I can hear it when I can't see it). If the test bulb lights up brightly you have a direct short, but you will not set the car on fire. You then start disconnecting things until the bulb goes out, which means you have found the Perp.
If bulb only lights up at half strength, you don't have a short, and bulb is in series with whatever you have switched on. Intermittant fault. Bummer!
Modern fuses are awkward to by-pass.
602