Nissan Repair Questions? Ask a Mechanic for Answers ASAP
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Does the ignition come on at all? Does the head lights work?
Yes, the ignition comes on? meaning if you press the start button once, it goes to ACC, and if you press it again it turns ON where all the dash warning lights come on?
What do you mean he used a Jumper wire to start the car?
Does the ignition not go to the ACC position? does it go right to ON?
He ran direct power to the push button to start the car?
Were all fuses checked with a test light?
Do you know if you have remote start in the car?
Do you know if the brake lights work?
You do have remote start?
is this a coupe or sedan?
Are you able to do some checks?
I have a couple idea's on what to check to see if we can isolate the issue. Part of this may require a scanner. But if you can do a couple checks and you have a volt meter, I am sure we can isolate the issue.
How handy are you? Other wise, I can give you some of my thoughts on what needs to be checked so you can have it done.
Let me know..
There is a plug on the top of the transmission for the transmission Range switch. This is what detects if the car is in Park or Neutral. If the car can not see if it's in Park or Neutral, it won't start. So I would check that. If that looks good, then I would ohm the wires from the Park/Neutral switch to the IPDM. The two wires go to Pins 74 and 72 on the IPDM. If that all checks out. Then I would check to see if the BCM is grounding pin 46 at the IPDM. These are signals that will allow the starter to engage. We know the starter is good cause it was jumped and it started the car. So we need to look at these signals. If both of these signals are good, then the IPDM is your problem and that control unit would need to be replaced.
Hang on a min while I get you the wiring diagram and IPDM pin layout so you can check this..
oh.. 1 last thing. There are two fuses in the IPDM as well. Make sure you check them also. Click this link below to download the wiring diagram so you can perform the proper checks to isolate your issue.
If you have any more questions on this, please feel free to ask.
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I hope I have provided you with Excellent Service.
You got it. With the information I provided, you should be able to isolate your issue, so let me know how you make out.
The switch it's self should have continuity if in park or neutral. So pin 74 should have power to the switch which comes from fuse 33 in the IPDM. If the switch is good and you are in park or neutral then power should come back out of the switch and back to pin 72 in the IPDM. Checking at the IPDM is much easier than checking the switch.
yes, I am thinking the Park/Neutral.. but it's actually the Range switch. The Park Neutral is a external switch, but the Range switch is internal of the transmission. So if that is bad, the TCM would need to be replaced.
I mean the Transmission. I think this has a external TCM on this year
I am no longer in front of my computer. Working off memory now..
You don't want to use a test light, you can burn out a control unit. You need a volt meter