Recently I had an issue with my 2002 Nissan Pathfinder. A battery that was causing a sluggish start needed to be replaced. I took it to Autozone. They replaced the battery. At that point the pathfinder had NO POWER. I mean NONE. I started poking around with the fuses and found that somehow the “Main Battery” fuse (a behemoth of a fuse in the engine compartment) had blown. I won’t get into the two hours or so it took the autozone guy to replace the fuse. It has two screws holding it in (yeah, the fuse has screws holding it in) and is encased in such a way that you cannot get to them without removing the whole box). Well, maybe you can if you have a special tool… but they didn’t so it took close to two hours.
Anyway, we took out the fuel pump fuse to make room for the screw driver. We got the battery fuse replaced and I hopped in to start the car. It made the worst noise ever. Then i realized we probably hadn’t put the fuelpump fuse back into its place. Sure enough. We put it back in and voila! It started. Now I had a new problem. The check engine light was on. The autozone guy read the code and said it read that the fuel pump signal was low (actually had been low)… obviously… it had no fuse at one point! I asked him to just reset it and he said they were no longer allowed to turn of the light! I would have to figure out how myself or have it done at a dealer / authorized service location.
So i looked around and found the following. It took me 4 or 5 tries. But it worked eventually. You have to get the timing just right or it won’t work so don’t give up too quickly.
- Turn key to ‘on’ for 3 seconds (but do not start)
- Step on gas five times within 5 seconds (I tried to do exactly once per second).
- Wait seven seconds (yes, count them).
- Hold gas pedal down for 10 seconds.
- At this point the light will start blinking out codes. I let it blink for what appeared to be a full cycle. I saw 10 quick flashes 3 times along with some other stuff between.
- Once you know the codes or decide you just don’t care you need to push and hold the gas pedal down for 10 seconds again. At the end of the 10 seconds it will quite blinking codes and just keep blinking 10 blink sets.
- Turn off the key. Wait 3 seconds. Start the car. The service engine light should be off. Enjoy.
If you don’t want to trust me on it (I was sceptical) here are some others that reference the solution. In the first link there is a guy who thought he screwed up his car using the method. He was wrong. There was another issue he needed to resolve. In the second link it is simply mentioned that this is the way to do it for an 02 pathfinder.
Like I said, it took me a few tries to get it. I actually tried it a few times, came in side and got mad, did some more research (found the first link), went back out and tried a couple more times and it worked. Just try to get close to the specified times and it will work.
[Update, maybe the picture will help describe things. Looks worth a thousand words to me…]