If the voltage dropped back into the 12’s, it’s a very strong indication that your Pathfinder’s alternator is bad. I have a 2001 nissan pathfinder. .. Test fuses but more importantly..Check belt condition and tension, IF all that's ok, replace alternator!!!! This Feb. 14, 2013 file photo shows the Nissan logo on the grill of a 2013 Nissan Pathfinder on display at the 2013 Pittsburgh Auto Show in Pittsburgh. It’s still worth having it tested, but be prepared to replace it. It’s almost always going to be caused by a bad battery or alternator. The automaker says a stop lamp relay can get stuck in the on position. Nissan and Transport Canada have recalled 4,800 Pathfinder crossovers sold as 2013 and 2014 models to fix brake lights that may remain illuminated.. I revved the motor and the lights were gone again so I don't know if it is a fuse or my alternator is going bad or what? oh, 94 v6-xe manual tranny, ac Now, assuming that the alternator was producing over 14 volts, go ahead and turn on the headlights, air conditioner, radio, and any other accessory you can think of, and run the same test all over again. Nissan Caravan Brake Warning Light: Why is it on? now the battery is charging at 14V. The brake light indicates that there is a problem with the physical braking system itself. It's the second recall for the same problem. The brake light is perhaps the most important warning light of all. The voltage from the alternator is sent to the battery through a wire that connects to the battery post. But, if the alternator has gone bad, it will eventually leave you stranded. Doing so may lead to injury when the brakes fail. A battery post cleaner or wire brush can clean it up in no time. The battery light comes on when it detects that the voltage in the battery is too low. Nissan Pathfinder owners have reported 34 problems related to brake light on (under the service brakes category). You may damage the vehicle if you continue to drive it. You may have noticed your Pathfinder struggling to start, and then the battery light stays on after the start. Your Pathfinder will operate for a short period of time off of the battery alone. the mechanic replaced alternator. 2001 v4. I have a 2001 nissan pathfinder. 2001 Nissan Pathfinder Dash Brake Light and Battery Light. my nissan altima 2005 brake light and battery light turned on after not used for a few weeks. Check to make sure that there isn’t the little bit left that it needs to turn the brake light off. It is trying to warn you that there is an issue with the charging system. If it’s bad, they’ll even install the new one. If you mess up fixing the brakes, it doesn’t stop. Nissan is recalling over 354,000 Pathfinder SUVs worldwide because the brake lights can stay on all the time. Is that some cryptic diagnostic code for something? The pressure differential switch measures the difference in pressure between the two circuits and will report that there is a difference by turning on your Pathfinder’s brake warning light. Set the multimeter to read voltage. The brake lights on your 2005 Nissan Pathfinder illuminate when you hit the brake pedal and help prevent you from being rear ended by the cars behind you. Also please check out the statistics and reliability analysis of Nissan Pathfinder based on all problems reported for the Pathfinder. Touch the positive side of the voltmeter to the positive battery wire. The serpentine belt turns more than one engine accessory (A/C compressor, power steering, etc). my rear lights did that and the nissan shops wanted to replace everything. With a multimeter you do a quick test to see if your Pathfinder’s alternator is working or not. Your reading of >(12.9v) is the reason those lights are on!.. If it’s still showing in the 12’s, it’s time to replace the alternator. You can diagnose whether your Pathfinder’s alternator is bad pretty quick at home. It is different than the anti-lock brake system, which gets its own ABS warning light. Or do I need to pull my alternator and start the round of usual tests. That would indicate a bad battery, but it’s still worth your while to have it tested first. Check to see that both of them are lighting up. The brake warning light indicates that your Pathfinder has detected that one of its major brake components has failed, typically detected through a loss of pressure. If your battery light comes on when you are on the road, get somewhere to have it tested as soon as you can. It’s almost always going to be caused by a bad battery or alternator. It can run off the alternator just fine once it’s started. Want Answer 0. Good luck diagnosing the issue. AFTER10 MEMBER; 2001 NISSAN PATHFINDER; 6 CYL; 2WD; AUTOMATIC; 150,000 MILES; Durring starring today both lights came on and never went off unless car is off. If the brake fluid looks like it is all the way out, you’ll need to add more, bleed the brakes, and ideally fix the problem so that you aren’t repeating all of this again. It only takes a second to check it out. DETROIT (AP) — Nissan is recalling over 354,000 Pathfinder SUVs worldwide because the brake lights can stay on all the time. A new alternator will rectify the problem. It's the second recall for the same problem. Nissan is recalling nearly 80,000 Pathfinder SUVs to fix brake lights that can stay on even though the brake pedal isn't applied, a problem caused by the brake light switch. If you have a voltage meter, that’s a fantastic place to start. Hopefully it wont happen tomorrow. If you feel there is anything you can add, please leave a comment below. The last time this occur, there was a fuse that blow. The leak can get worse over time and lead to brake failure. It only did it once and I turned the A/C and radio off. Specifically, you’ll need to set it to 20V DC. See Also:  Nissan Pathfinder Bad Alternator Diagnosis. If the brake fluid is leaking out over the brake pads and shoes, it means poor brake performance. The following was taken from bad alternator diagnosis page on this site: If the alternator seemed to be charging the battery fine, then it is time to move on to the battery itself. It didnt happen again. If you see your Pathfinder’s battery light turns on while the engine is already running, that is a strong indication that the alternator is no longer providing enough wattage to power the various electrical systems and charge the battery at the same time. I waited 2 mins and turned the A/C & radio back on. I was surprised as my front & rear brakes were done in may 2016. I started the vehicle up this morning and the battery light, a/t oil temp and brake light came on all at once. Since you’ve already checked the emergency brake handle, now it’s time to check the master cylinder and see if the brake fluid is low or not. 2010 Frontier Crew Cab 2007 Pathfinder Join Date: Jun 2007. Nissan recalls 354,000 SUVs, many recalled 5 years ago, because of brake light switch problems. The brake light means a malfunction in the system, or low brake fluid. This morning both my battery light and e brake light came on simultaneaously, and are still on. it … read more I didn't drive my car the whole weekend until today and the lights came back after driving for a couple of miles. That’s infinitely more dangerous. Your brake system is divided into two circuits. The recall covers certain Pathfinders from the 2013 through 2015 model years. Just have it towed to a mechanic. 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