How JustAnswer Works:
  • Ask an Expert
    Experts are full of valuable knowledge and are ready to help with any question. Credentials confirmed by a Fortune 500 verification firm.
  • Get a Professional Answer
    Via email, text message, or notification as you wait on our site.
    Ask follow up questions if you need to.
  • 100% Satisfaction Guarantee
    Rate the answer you receive.
Ask AMEDEE Your Own Question
AMEDEE
AMEDEE, CHEVY TECHNICIAN
Category: Chevy
Satisfied Customers: 24442
Experience:  ASE certified tech ADVANCED LEVEL SPECIALIST. Wisconsin certified emissions state inspector
279429
Type Your Chevy Question Here...
AMEDEE is online now
A new question is answered every 9 seconds

I have a 2001 Chevrolet 3.4 v6 automatic. It came with a no

Customer Question

I have a 2001 Chevrolet Monte Carlo 3.4 v6 automatic. It came with a no crank no start condition. Car has full power as far as a battery is concerned. All lights radio etc work at full power. Key to acc position lights up dash. I don't see a security light at all ever under any circumstance not even briefly. The engine light illuminates and is working. There's a trouble code stores related to the. AIR injection. I'm assuming this is completely unrelated. Turning the key to the start position does nothing. Hot wiring the starter from the relay will crank the engine but not start it.
Could it be related to the fusible links at starter?
What would cause a no crank, no start when forced crank condition?
Submitted: 11 months ago.
Category: Chevy
Customer: replied 11 months ago.
The car is a year 2000
Expert:  AMEDEE replied 11 months ago.

Hello and welcome! My name is ***** ***** I can assist you with your question.

Expert:  AMEDEE replied 11 months ago.

One minute while I pull up your vehicle

Expert:  AMEDEE replied 11 months ago.

Is the computer grounding the starter relay with the key in the CRANK position?

Customer: replied 11 months ago.
How will I know this? Is the small wire on the starter the one we should be looking at?
Expert:  AMEDEE replied 11 months ago.

There are 4 female pins that the starter relay plugs into. Two of them should be power and the third one should be grounded with the key in the CRANK position. The starter relay may be missing a power or the ground preventing it from activating

Expert:  AMEDEE replied 11 months ago.

You will need to test this right at the starter relay

Expert:  AMEDEE replied 11 months ago.

While an assistant turns the key to the CRANK position

Expert:  AMEDEE replied 11 months ago.

Here is a wiring diagram of this circuit

Customer: replied 11 months ago.
the upper left and lower left (as oriented if you are looking at the fuse box with the relay removed) have power And the other two are grounded no matter where the key is
Expert:  AMEDEE replied 11 months ago.

So if you insert that relay and turn the key to the CRANK position, does the relay click?

Customer: replied 11 months ago.
No
Expert:  AMEDEE replied 11 months ago.

It should or 1) it does not have the correct inputs to it or 2) the relay is bad.

Customer: replied 11 months ago.
The security light is coming on now. It was not before. It only comes on for about five seconds. First the battery light then the security light then the battery light stays on but the battery is fully charged
Expert:  AMEDEE replied 11 months ago.

Ok, that is the problem.

Expert:  AMEDEE replied 11 months ago.

Was the passlock or ignition lock cylinder replaced?

Customer: replied 11 months ago.
What do you mean that is the problem what is the problem. On further investigation my scan tool shows zero security codes and the security light commanded offIf my problem is within the security system I am fully aware there are steps that can be taken to diagnose and repair the problem so can you go further into detail than just saying that is the problem
Expert:  AMEDEE replied 11 months ago.

I am.. It just takes time to type.

Expert:  AMEDEE replied 11 months ago.

Please relax

Expert:  AMEDEE replied 11 months ago.

Did you check the BCM for codes?

Expert:  AMEDEE replied 11 months ago.

Or do you only have access to the PCM?

Expert:  AMEDEE replied 11 months ago.

Have you tried to do a relearn procedure?

Customer: replied 11 months ago.
The BCM only shows one code and it says daytime running light circuit I'm pretty sure I have access to the PCM my scan tool has a lot of features but sometimes finding them isn't easy
Customer: replied 11 months ago.
How do you do a relearn procedure I have not tried this
Expert:  AMEDEE replied 11 months ago.

Here is a youtube video. It is rather long but it does show you everything. This is the same setup you have on your vehicle. You can fast forward through the middle of the video if you would like.

https://www.youtube.com/watch?v=_njAVpk47_c

Customer: replied 11 months ago.
Does it matter that my gauge area looks differently from that one? Also my security light only comes on once for about five seconds and then the battery light stays on in the information center. If I open the door the information center will switch to door ajar when I close the door back to the battery but never back to security until I re cycle The key back off and then on againI tried leaving the key in the on position for 10 minutes earlier I did not know that was the relearn I thought it was a bypass found it on Google but anyway that did not change anything
Expert:  AMEDEE replied 11 months ago.

It is possible that the ignition switch itself is bad. Or the pass lock sensor inside the ignition switch. However if this was the case it will usually set a security code in the computer

Customer: replied 11 months ago.
if there are zero security code stored is there any other way of diagnosing this? Or getting around it?
Expert:  AMEDEE replied 11 months ago.

You would have to check and verify the inputs to the BCM and then replace it if needed.

Customer: replied 11 months ago.
OK how is this done I guess we should start with the testing procedure
Expert:  AMEDEE replied 11 months ago.

Maybe we should do this over the phone.

Customer: replied 11 months ago.
If it's gonna cost me an extra $18, I'll pass on the phone call. Is that the only way you think we can get to the bottom of this? If you tell me where to look and what wire to test and what results to look for or how to interpret the results, I'm pretty comfortable around a car I think we can do this
Expert:  AMEDEE replied 11 months ago.

Its a lot of extra work on my part. That is what the extra fee is for.

Expert:  AMEDEE replied 11 months ago.

Lets do this so it is fair for both of us. Can you provide me with an excellent rating now and I will go the extra mile for you (without the extra fee) and will do some digging for you.