Four months ago my battery went dead, I replaced the alternator and bought a new battery. Recently the starter would just barely turn the starter over, but the car would not start. I had the battery charged but shortly the battery went dead and I replaced it only to find I now have no electrical power, zero. I turn on the key and nothing. No dash lights, no horn, no elec windows, headlights, nothing? I had the battery checked at Autozone - it was fully charged, so seems not to again be the alternator issue. Is this a Starter Relay problem ? Or some blown Fuse ? I've check most obvious fuses - all seem intact, so .....??
Or the battery cables ! Do you know how to use a voltmeter ?
Starter Voltage Drop
Do you know how to do basic automotive electrical testing ?
How to voltage drop test starter motor circuit
Electric Testing Techniques You Need to Know Here is a place to view wiring diagrams ! http://www.bbbind.com/free_tsb.html
SOURCE: Dashboard and tail lights out on 97" Nissan Sentra
I took my pathfinder to U-HAUL and asked them to check the towing lights. There was a pinched wire by my tail light and they cut it and changed it out for me, it was $5. I am so glad that I didnt take it to Nissan. My second step was going to be getting a new dimmer switch..but the guy who worked on my car said that wouldnt be the problem. He also told me that replacing a fuse that kept blowing out was dangerous and after the first time to get it checked out. Learn something new every day!!
SOURCE: '01 Nissan Xterra won't turn over starter, after trying to start the headlights flash.
starter possibly going bad
SOURCE: dash and tail lights not working in car with no blown fuses
start by the battery twist wire on pos termanal this happen to me on my dodge van bad batt took out speed o meter and tach. replaced batt no speedo no tack.i had to go on a a long trip back home half going up a hill the tach jumped to life then about one hour latter had to make a stop pulling off the freeway slowing down for the stop sign the speedo came on and both have worked ever since. I have talked to a dealer ship there no reset codes for that problem
SOURCE: car won't start
Stang: Nissan had a TSB on weak spark related to the Altima's and Sentra's. It had to do with water getting trapped in the spark plug tubes due to the steam hole vents in the plug wires becoming clogged and/on the wires no longer sealing well to the motor, thus allowing water to accumulate into the plug holes. This would cause a weak spark condition. You would still get an injector pulse as long as the ignition can be triggered.
As far as fuses: There is a box on the driver's side which contains fusible links and fuses. Unless you are checking for power with the ignition on, most of the circuits will be dead because they are switched circuits through the ignition switch. The headlights will be hot without the key on, as will the running lights,horn and brake lights.
However due to the fact that you have light spark and have injector pulse, would tell me that you have power to the ECM. If you want to check circuits, buy a cheap test light and follow the instructions. it is a simple diagnostic tool for checking for open circuits.
Hopeful I might have given you some direction. Good luck.
PS: if you replace plug wires, do so with a good quality wire. I have found that NGK wires and the Original equipment wires seem to be the best quality, lasting the longest. Life time warranty parts mean nothing if they fail at inconvenient times and with frequency. Many of these warranty's are gambles made by parts houses based on the fact that people loose their information, don't keep the cars and or just forgot they had the warranty and went out and replaced the parts again.
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