Toyota tacoma wont start

turn key listen for fuel pump if you cant hear anything i would start there. if its an automatic , put it in park.

scan it.
plug (USA:"?) any scan tool
crank for 5 seconds,
stop relax key , not off
see scan DTC errors, i bet YES
no RPM scanning? yes, that means CKP is dead.

the ecu can see no spark cause. most

Replace spark plugs as they might have been worn and check the specific gravity of the battery checked. The ignition coil also may be causing the problem.

If the engine cranks but does not start, you will need to know if you are lacking fuel to the injectors, spark to the plugs, or compression to proceed.

look for the valet switch. Google/youtube "how to use valet switch" (add in the brand of alarm.

Try putting the key in the driver door lock and turning from lock to unlock. That should dissable the factory alarm system. You may have to do it a few times before it works.

Starter may be locked up or bad. If Starter is Ok then it will be in the Ground from the starter. If Engine is Cranking and not turning over you are either not getting 1 or 2 things spark or fuel. No Fuel chances are, it is a bad fuel pump, If No spark it is a bad coil or distributor.

timing belt?

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clogged injectors you need to put cleaner in the fuel to help get dirt and grit out of them some times (every 3 months).
I am assuming you are saying it will turn over but not fire and run when cold?