07 Frontier will not crank

[07fronty]

My 07 Frontier SE CC 4x4 4L AT will not crank. It does not turn over. I turn the key to RUN and it looks fine, then the headlights come on and the engine fan starts. The engine is stone cold, and no daytime running lights. Headlight switch is OFF. Turn to START and the panel lights stay on, fan and HLs on, but no crank, no solenoid chatter, nothing.

Two days before it quit I got a BAFX OBD code reader from Amazon to use with Torque for Android. Hooked the reader up and played some, drove to town and back watching some of the Torque gauges. Pulled the reader for the night. Next day, plugged code reader in and did my usual errands with Torque monitoring things. Got home and parked, did not remove the reader. Truck sat for about 26 hours and now will not crank with the reader in or out.

Battery reads 12.15v, cleaned the terminals. Can't check amps at crank, but they're probably zero since it won't turn over. Tried starting in neutral instead of park. I tried swapping the ECU relay on the IPDM, no joy. Another post mentioned A/T ECU fuse, it's good. For grins I locked and unlocked it with the fob, no change. Called the stealership, service writer had no suggestion other than a jump - no clue on headlights or engine fan.

I'm open to suggestions. Thanks.

[JB'sTitanXD]

have you tried jumping it? battery may not be putting out enough ampage under load

[nalz]

A good battery should read much closer to 12.7~12.8 volts, with no loads on the battery. 12.15 is way low!! I would charge and retest

[Desert Rat]

I'm betting on a weak battery.
It's almost always the simple stuff.

[nissan2gr8]

Most newer vehicles won't crank unless there's 12.4v. Reason being the vehicle self checks via sensors and computer the computer can't do its self check because the sensors don't have enough power so the computer doesn't let the car start ie crank that's why everything that's electronic is turning on lights fans ect. And just because the battery reads x voltage doesn't necessarily mean it's fine amperage is a factor too
Hope this helps.

[maas]

Have you find out what was the problem and how to fix it on NO crank no start?

Please let me know? I have the same now could not start my truck?

[Desert Rat]

check your battery, Maas.

[maas]

Battery is good.
I saw one of the replies who had the same problem no crank no start with head lights and engine fan on stating that the problem was the safety switch down by the transmission.
I wish if I can have a picture of this safety switch so I can change it or reset it?

Regards

Maas

[maas]

Please help to know the transmission neutral safety switch location?
Apprciate any picture that will help?

Regards

Maas