Testeur de circuit
Use a 6-12 volt circuit tester for checking a car circuit. It has a short metal probe, and the translucent insulated handle contains a 12 volt bulb and has a length of cable attached that can be clipped to the car body as an earth. The probe is used to test the live side of the circuit. Where there is current, the bulb lights up.
To make a simple test lamp, use a single filament bulb and two lengths of low-current carrying wire. Solder one length to the bulb basecap metal (earth), the other to the single centre contact (live). Fix crocodile clips to the wire ends.
Cet outil est utilisé dans
Windscreen washers and wipers must, by law, be in working order. Keep the washer bottle topped u...
Cars with electrically operated windscreen washers sometimes have a switch controlling the motor...
Wear on the carbon brushes and commutator is the most common cause of dynamo failure. Normally t...
Les voitures sont généralement équipés d'une haute fréquence (HF) ou d'une corne comme équipemen...
Les moteurs électriques des ventilateurs sont allumés soit par le commutateur d'allumage - et co...
If there is trouble without an obvious cause in any electrical component, test the circuit to fin...
Si le démarreur ne tourne pas il se peut que cela vienne du moteur, la faute peut être une...
On some cars, because of limited space, the only way of replacing the contact-breaker points or ...
The electrical wiring in a car is a system of colour-coded wires called the loom. Where several w...
A car usually has up to six main instruments — speedometer and tachometer (rev counter); fuel, o...
It is an offence in law not to have all obligatory lights working. Check them frequently, especi...
Si la jauge de carburant indique vide em> mais que vous savez qu'il y a du carburant dans le...
The low-tension (LT), or primary-ignition, circuit consists of the battery, ignition switch, con...
The timing mechanism in the ignition system causes the sparkplug to fire in each cylinder just b...
Il y a deux types de base de voyants. L'un est actionné par une pièce de fil ou d'une bande...
The windscreen-wiper mechanism needs little maintenance. At service intervals drip a little oil d...
The car's heating system consists essentially of a motor-driven fan to blow warm air from the en...
Reversing lights are not generally a legal requirement but they are useful. They serve two purpo...