#2003 ford focus manual#

If it's the other way around, then you've got a break in the wire. If you've got continuity there, and none in the switch, you need a new switch. Detailed specs and features for the Used 2003 Ford Focus ZTS including dimensions, horsepower, engine, capacity, fuel economy, transmission, engine type, cylinders, drivetrain and more. Also check for continuity between the low beam wire here, and the other end of it at the bulb connector (6) - you'll need a long length of spare wire and an assistant. (for peace of mind, again check high first, so that you know what you should see). This information is used by the engine computer to adjust the fuel mixture for proper performance and efficiency. The oxygen sensor on your Ford Focus, sometimes called the air-fuel ratio sensor or the O2 sensor, monitors and measures the amount of oxygen in the exhaust gases. Use the multimeter to check for continuity between the power feed into the switch and the low beam wire coming out with the switch in 'on', 'low' position (5). Denso Direct Fit Oxygen Sensor - 234-4375. If you're lucky (I don't know the Focus), there might be a connector somewhere near the fusebox you can use, otherwise you'll have to disconnect the one on the back of the switch. Remove the shrouds around the steering column to get at the back of the switch.

#2003 ford focus manual#

This next bit can be difficult, just because of access! Get hold of a 'Haynes' manual or similar, you'll need the wiring diagram to identify which pins are which. (Testing 1-6 all together)Īssuming that the earths are fine, and there's no voltage on the low-beam pin, then the switch is our next suspect. Car info: Model: 2003 ford focus SE KM: 188000km Transmission: Manual Engine: 2.0 Z-tech dual overhead Issue: Last summer, typically on warmer days, focus would just completely shut down while driving. Now switch back to low bean and check the other pin - if it's working, you should see 12v there too, but if there's a failure in the switch or wiring then you won't. Then use the 'voltage' function to check that you get 12v on the high beam pin when highs are on (which you should, as you know they are working!). Use the 'continuity' function on the meter to check that you've got a good connection from the earth pin (usually a black wire) to the battery negative.

Get hold of a multimeter, and work your way backwards along the circuit checking for voltage/continuity - I'd probably start with the connection on the back of the bulbs first. We can assume the first three are fine (you've tested the fuse), and you've changed the bulb (always worth testing the new bulbs too, just in case!). We can break the circuit you're testing into several distinct parts: If they are separate bulbs then I'd suspect earth connections (as per Mike's comment). Bushing Material: Natural/SBR (Styrene Butadiene Rubber) Blend. If you get the same behaviour on both sides, and you have twin-filament bulbs, then my first suspect would be the switch.