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Jay
Jay, Certified Infiniti Technician
Category: Infiniti
Satisfied Customers: 3446
Experience:  20+years, Nissan and Infiniti experience and currently now working for a Infiniti Dealer
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Infinity qx,56wont crank starter.power to everything, ran

Customer Question

Infinity qx,56wont crank starter.power to everything, ran fine 15min. Prior.power out of switch in start pos.no signal at connection foot away from starter.
Submitted: 3 months ago.
Category: Infiniti
Expert:  Jay replied 3 months ago.

Hello my name is ***** ***** thank you for your question.

How good are you at electrical? Do you have a Volt Meter to do some checks?

Customer: replied 3 months ago.
25yrs as mechanic myself I have power on crank out of switch to two relays behind right side kick panel from there to next relay or component unknown.
Expert:  Jay replied 3 months ago.

Cool, hand on while I pull up the starter wiring diagram so we can go over some checks.

Expert:  Jay replied 3 months ago.

https://dl.dropboxusercontent.com/u/105565483/2.pdf

That is the wiring diagram for the starter. Can you tell me if you are getting power at Pin 21 at the IPDM when the key is turned to the Crank Position?

Customer: replied 3 months ago.
Trying to download info you sent there are 3 pin 21
Expert:  Jay replied 3 months ago.

What do you mean? There is only one pin 21 at the IPDM.

Expert:  Jay replied 3 months ago.

https://dl.dropboxusercontent.com/u/105565483/3.pdf

That is the IPDM terminal layout

Customer: replied 3 months ago.
power at 21
Expert:  Jay replied 3 months ago.

How about pin 48 at the IPDM?

Customer: replied 3 months ago.
No power
Expert:  Jay replied 3 months ago.

If you have no power, that is a sign of a bad IPDM. Do you have power at pin 12?