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jmer512 08-08-2019 11:34 AM

No Start Issue
 
I have a manual transmission Nissan Frontier 4.0, 2006.

I have had issue with intermittent start and now I canít get it to start at all. I have replaced batter, terminals, spark plugs, camshaft/crankshaft sensors and the clutch safety switch.

I have had the starter, alternator and battery checked and all run fine. The last time it ran I got a check engine light for the camshaft and crankshaft sensors. Was not able to get it started after that so I replaced the sensors. Still not start and the last person suggested swapping the clutch safety switch.

Does anyone have any suggestions on what to try next? Really trying to avoid getting it towed to a shop.

smj999smj 08-10-2019 10:34 AM

It's always best to diagnose a problem rather than just keep replacing parts until one of them fixes it. As you've found out, it can start to get expensive! There are three different relays in the M/T starter circuit and the starter gets it's signal from the starter relay in the IPDM. The "SC" section of the factory service manual has wiring diagrams, schematics and diagnostics for the starting system, which you can find at this link:

https://nicoclub.com/FSM/Frontier/2006_Frontier/sc.pdf

Schrade 08-13-2019 05:58 AM

Sounds like it's turning over, but not 'starting'?

Or is it not turning over at all?

DTC XXxxxx means the CIRCUIT for X Sensor has a problem, and not necessarily X Sensor has a problem.

Could be voltage TO the sensor ($free to check), could be a bad ground FROM the sensor (also $free to check), or could be the sensor (sometimes $free to check, if duty cycle of sensor can be tested with scanner or 'jumper-pin' triggered).

Fully-Automatic-Assault-Wallet / Plug n Pray repair rarely works, as smj noted.......


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