When I turn on my Switch for the fog light on my 2003 nissan maxmia it won't come on

For strangeness like that you need a good local auto electrician with a pro grade scan tool computer. It sounds like a BCM (body control module) communication issue.

https://www.google.com/search?q=auto+electrician+near+me

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The most likely location will be on the indicator (turn signal) stalk. There is a twist collar to turn on your head lights. Next to this, nearer the steering column, is a second twist collar for the fog lights. The below image is of a 2015 frontier but it is basically the same switch. The switch may only twist when the dipped lights are turned on.

Yes, or possibly bulbs, or a loose ground.

The light fuse controls the brake lights on a 2003 Ford Escort.


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NEC Dash Programmer ECU Flasher

There are several things that can cause your fog lamps to not work. The fog lamp circuits need to be diagnosed. Your entire fog lamp circuit can be tested at the plug for the fog lamp relay located n the relay box.

PIN 5 on the relay should have battery power at all times. This power comes from Fuse #43 (15 Amp) in the fuse and fusible link box in the engine compartment. If there is power at this pin, the fuse and the circuit between the fuse and the relay is good.

PIN 3 on the relay goes to the fog lamp bulbs. There should be continuity to ground through the bulbs on this pin. If you have continuity to ground, connecting a jumper wire between PIN 5 and PIN 3 should make the fog lamps come on unless there is a short circuit to ground, which will cause Fuse #43 to blow. If there is no continuity to ground on this pin, the problem is either that BOTH fog lamp bulbs are burned out or there is a break in the wire between the relay and the bulbs.

PIN 1 Is the battery power for the primary coil in the relay. This power comes from the headlamp switch and power is only supposed to be present here when the headlamps are on and the dimmer switch is on LOW BEAM. If power is not present at this pin, the problem is a bad headlamp switch or an open circuit between the headlamp switch and the relay.

PIN 2 Is the control circuit for the primary relay coil. The control circuit should have continuity to ground when the fog lamp switch is set to the ON position. If there is no continuity to ground with the fog lamp switch on, the problem is a faulty fog lamp switch, an open between the relay and the fog lamp switch, or an open between the fog lamp switch and ground E37 (right front of engine compartment) and ground F7 (left rear of engine compartment) Please note: This circuit has redundant grounds....if one ground is not making good contact, the other ground can still make the circuit work.

PIN 4 on the relay is not used.

If all of the circuits/pins are working as described above, replace the relay.

That is pretty much it... That is all you really need to know to get your fog lamp circuits diagnosed. Let me know if you need further assistance.

Yes, the 2006 has the fog light switch on the headlight switch which is also the turn signal switch, another way is to install a fog light switch, this will not be as the factory setup which works off the headlight switch but will save some money.

With the switch in sidelight or dip

position, pull the switch to its first

position to turn on the front fog lights.

Pushing the switch in or turning it to OFF
or AUTO will turn off the front fog lights (this is for the front)

With the switch in any position except

OFF or AUTO, pull the switch to its

second position to turn on the rear fog

lights. This will also turn on the front fog

lights unless main beam is selected.

Pushing the switch in or turning it to OFF
or AUTO will turn off the rear fog lights (this is for the rear)

Exterior lighting

Exterior lighting switch

A. OFF.

B. Side (parking) lights.

C. Headlights.

D. Auto.

E. Front fog lights.
F. Rear fog lights.

It is the round knob nest to the steering colume

Yes there is normally a separate fuse,check in fuse panel or manual should be titled driving lights or fog lights. Or possibly the switch to turn them on and off went out. Let me know, thanks mike

Sounds good to me except, the switch light shout be on the relay primary circiut and light off until you turn it on. When you turn the switch on, it lights up and energizes the relay, the relay closes and completes the secondary circiut for ythe fog lights. VIOLA' I have a silverado. done deal thanks

i would go with the nissan stuff.