What is the firing order on a 3.5 2009 Honda Pilot

Question edited for clarity.
Question moved to model category.

Check out this link.

https://www.autozone.com/diy/repair-guides/honda-pilot-2003-2005-firing-orders-repair-guide-p-0996b43f80375012

https://www.google.com/search?q=2007+honda+pilot+firing+order

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That is indicative of the anti-theft system preventing starting. Is the Security Light on?

Changing the battery is easy.

https://www.youtube.com/watch?v=f23BHU0MgOE

This says a dead key fob battery prevents starting so change it Tara and see.

Honda Pilot won't start - causes and how to fix it - WheelsJoint ...

https://www.wheelsjoint.com > Troubleshooting
Dec 10, 2020 - The most common causes that hinders normal starting operation of your Pilot are dead key fob battery, dead 12v battery, corrosion on battery ...

1-4-2-5-3-6- for the 3.5 motor

Here's a link on your firing order. Repair Guides Firing Orders Firing Orders AutoZone com

In order to pull the transmission on a honda pilot it all comes out from the bottom. You must remove the front suspension all the engine harness, pipes and hoses unbolt the suspension subframe bolts and drop the whole thing at one time. Use a suspension lift designed for this or you could drop it and loose it.

The ignition wire firing order for the 2001 Honda CRV 2.0 Ltr is 1-3-4-2, the cylinders in order are 4, 3, 2, 1, and the distributor fires at 1 to 3 for the back and 2 to 4 for the front. Also, everything rotates clockwise.

Hi the firing order for your Honda is 1 3 4 2.
No. 1 is the cylinder at the pulley end of the engine.
Honda put there engines in backwards to most front wheel drive vehicle, the pulley end is on
the right when u lift the bonet ( the hood )
Hope this helps you.
John ( South Wales UK )

Here is a picture:

Does the engine sound different when it cranks? It might be a timing belt concern? Remove the oil cap and look for the camshaft.(you might need a flashlight).Have a partner crank the engine and watch the cam. If it stays still you have a bad timing belt.Let me know what you find.