Q: Won't start. Replaced starter and relay switch, still won't start. Tested battery and it's good.

asked by on

We have a 2001 Nissan Pathfinder and it won't start. We have replaced the starter and the starter relay switch. We have tested the battery and it's good. It doesn't make a noise just won't start. Any suggestions on what we can try next?

My car has 158000 miles.
My car has an automatic transmission.

Hey there, thank you for asking about your 2001 Nissan Pathfinder. You should check fuse number 18 in the fuse panel under the dash. Test the black and yellow wire at the start interrupt relay to see if it gets power when you turn the key to start. If it does, then you are getting power from the ignition switch. Then check the black and pink wire at the relay to see if you get power when you try and crank the engine. If you get no power, then you may have a bad neutral start switch on the transmission. Try to move your transmission through gears and neutral while trying to crank it, holding the brake in case it starts. If you find it will start in one of the gears, then check the shift linkage. If it’s okay, replace the shift interrupt switch on the transmission. If you want to have this checked by a certified mechanic, a technician from YourMechanic can come to your home or office to inspect your starting problem.

Was this answer helpful?
The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details
  1. Home
  2. Questions
  3. Won't start. Replaced starter and relay switch, still won't start. Tested battery and it's good.

Get an instant quote for your car

Our certified mechanics come to you ・Backed by 12-month, 12,000-mile guarantee・Fair and transparent pricing

Get a quote

What others are asking

Q: Starter turning over without cranking

Hello. Two common component failures that will cause the conditions you've described are a faulty fuel pump relay or a crank position sensor. Both parts have the potential to fail intermittently when they become hot. But when they cool off...

Q: Intermittent starting issues (takes a couple of cranks to start) & throttle surge

Hi there. From the description you have provided of your vehicle's starting trouble and throttle surge, it looks like you have already tried replacing many parts on the car.Replacing parts without a diagnosis can be expensive and time consuming without...

Q: 2005 Nissan Pathfinder won't accelerate

While there can be a few reasons as to why your Nissan Pathfinder is giving these accelerate problems, from my experience the first place I would start investigating is the throttle body. The throttle body in your Pathfinder is electronically...

Related articles

What are the Car Pool Rules in Hawaii?
Hawaii is widely regarded as a land of vacation and relaxation, and as such, its scenic roads and routes are far better known than the state’s freeways. But, as with all...
How Much Does a Mechanic Make in Vermont?
Automotive technician jobs in Vermont have an average mechanic salary of $37k, with some mechanics earning a salary of $53k.
P2103 OBD-II Trouble Code: Throttle Actuator Control Motor Circuit High
P2103 means there is a fault with the throttle actuator control motor circuit, likely due to a defective electrical component or part.