20 Most Recent 2003 Nissan Altima Questions & Answers

The scan tool your using is generic ISO 9141 is used as the protocal. Its not a code. kwp2000 is not shown. Try and use it on manufacture specific or try and get any freeze frame codes and reply or repost. ( Don't forget to turn ignition key to the run position when trying to retrieve codes.)

look and listen for a vacuume leak

Question edited for clarity. Question moved from Car Audio category. Diagrams and videos. https://www.google.com/search?q=2003+nissan+altima+2.5+crankshaft+sensor+wiring+diagram ..

Just run it by auto zone and they will hook it up and read the code for you for free.

purchase a repair manual

you may need ot do a cooling system flush, go buy a bottle of radiator flush, put it in the radiator when it is cold, run the car for about 15 mins, and go up to the car wash and take the upper rad hose off, and use the power washer to push all of the gunk and anti-freeze through the system. do it until it runs clean.... let the car run for 2 mins with the hose off after flushing and buy straight antifreeze, not 50/50. add it to the radiator, you should have heat.....

If this does not work, then your control unit in your dash may be bad....

Sounds like ignition module is going out

Do you know how to test automotive electrical circuits using a DVOM - digital volt ohmmeter ? Reading a wiring diagram so you know what all is involved in making the starter work ? If not ,your best bet take it to a qualified repair shop . We don't just replace parts . https://www.youtube.com/watch?v=0mKrx-fMi_8

Usually an Ignition module or coil pack problem.

Are you sure it is a Nissan audio system. Nissan does not use codes in their radios. You must have an aftermarket radio.

If it's the drain bolt, 22 to 29 ft lbs. Or are you talking about the 10 pan bolts holding the whole thing to the block? 7 to 12 ft lbs, but I would stay on the lighter side, if using an rtv silicone instead of a pre formed pan gasket

filter is inside of the fuel tank and its a part of the fuel pump assembly. you need to remove the bottom section of the rear seat via 2 clips at the bottom of th eseat.you need a special tool to remove the lock ring on the top of the fuel tank. you wil also need a new o-ring to close itback up. the whole pump assembly has to come out and disassembled to replace flter. good luck.

The Factory Alarm can not be disabled I am afraid. It is integrated into the car and can not be disabled

Just by the information you put, I would say its your brakes. They are most likely worn out past the minimum wear (3mm). If its whenever you drive maybe you are dragging something? Your exhaust system supports may have failed, maybe something stuck in there and so you are dragging it along. Take a look underneath your car.

If the noise only happens when you brake then its gotta be a problem with your brakes. Sometimes rocks get stuck in between brake pads and rotors, this makes a very annoying squeeling sound until the rock comes loose and falls out. Another possibility, like I said earlier, is that your brake pads have worn out and is now metal on metal. I recommend you go to a shop and get your brakes checked. Brakes are a very important part of your vehicle, safety especially, so I don't recommend doing it yourself unless you know what you are doing.

Hope this helps.
Thanks

:)

I was JUST working on a similar problem at work. It was a 2006 Altima SE with improper seat operation. It would ONLy go up/down on the bottom section of the seat. The recline and slide didnt work at all. It was looked at by different dealer and they couldn't fix it, so it end it up at my dealer ship. Since some of the features of the power seat are working, that means that you have power going to the switch. The switch provides ground for the whole circuit. The wires coming from the switch got chaffed and switch burned up. I installed new seat switch ($150 or so for the switch) and the whole seat bursted to life. I am pretty sure that you seat switch in NG.

Probably a burnt light bulb

Hello u'd need a proper manual for this in my opinion like there are plenty of dealers and online shops that deal in those.. you can get some free at reliable-store and it;s actually really illustrative

The seal is easy compared to the axle removal. It is simply knocked into the transmission housing.

You didn't mention your engine size. This vehicle does not have a coil pack on either engine. This engine uses "Coil on plug" ignition coils. I am forwarding pictures for the 2.5L i4 and 3.5L V6.

Wrong. Some immobilizers go to ecu while some go to bcm. The bcm ones can be bypassed