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Hope Dash board light up when Key turned to 2nd/Accessories position. Check power at Ignition Switch first. Then with Ignition On, press Brake which should operate a Solenoid to Release Shift out of lock. Check power at Neutral Switch also. Finally connect 12 v Power to Starter directly to see it Starts. Any of these point if not getting powered means break in connection of wire or break in Fuse.
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Diagnostics is the way to solve. I am not sure if it has an immobilizer, but you disconnected the battery. If there is an engine immobilizer, it needs to be reset.
This is the best way to fix it. An auto electrician with a pro grade scan tool computer. The "let's try replacing this" method of auto repair doesn't work and is expensive.
I can't help much w/o year--make--model? Do you have a security system on this vehicle?
Most starters have two voltage circuits, one comes from the battery, hot all the time. The other circuit goes hot with key in the start position, may be wired through neutral switch, depending on the tranny, maybe you have a starter relay? The starter motor usually grounds through the engine block. The fact you can jump the starter motor and it cranks, sounds like the ground is ok. Use a test light, check for voltage on those two voltage terminals. Make sure tranny is out of gear and parking brake is set.
Some makes and models have shift-interlock, you can't shift it unless you step on the brake. Do the brake lites work? If not fix that first.
Some makes and models have a shift-interlock bypass button so you can press the button, then shift into neutral. Parking brake set.
Hard to say, unless I have my hands on it. But I would say you have a ground problem. Check the grounds from the battery to the body and engine. Corroded/broken cables. This is common with power amps.
Maybe something wrong with neutral switch? Usually it is on or close to transaxle shift lever, follow the shift cable to shift lever, the switch has multiple wire connector.
It may be possible to start vehicle by jumping the load side of starter relay, key on. There are safety issues trying this, the vehicle will crank in any gear. Make sure tranny is out of gear, parking brake is set, block the wheels, whatever it takes to be safe, safety is your responsibility.
If the problem isn't that neutral switch, then I don't know? Any applicable trouble codes?
Get help, have helper hold set parking brake and hold foot brake, pop shift cable off of linkage bracket on trans, try to shift it by hand. Only starting in N may be broken internals on neutral safety switch.
the neutral safety switch is probably faulty the radio says safety because the wrong code was entered 3 time key needs to be on for 3 hours hook up battery charger check engine light may be code for trans issue
Hi cotboh7 If this truck rolled off the ramp I would check the neutral safety switch. You could also check that the shift linkage is set properly, also back to that starter, sometimes they give no indication at all, this happened to myself recently, parked the truck came out nothing, it was the starter in my case.But that has nothing to do with the truck rolling in park, and the neutral safety switch is for just that purpose, which is why it must be in park or sometimes neutral to start.I hope this helps,good luck to you.
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