2015 G56 swap won’t start

**KeepEmRollin14** · 10-14-2018

Sorry I can look shortly on all data

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**Dwelsh** · 10-14-2018

Originally Posted by John Crosby

No. Just a G56 swap. I already have the new G56 tune installed. But it’s not registering the clutch being depressed to allow starter to engage

Have you tried jumping the connector to rule out a bad clutch pedal position sensor? I'm assuming that the parts are used?

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**Dwelsh** · 10-14-2018

Originally Posted by KeepEmRollin14

Sorry I can look shortly on all data

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Nice I wish I had access at home. It would be nice if we had wiring diagram for both the G56 and the 68RFE.

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**John Crosby** · 10-14-2018

Safety switch has been eleminated. Tried wiring pin4 from auto trans connector to ground. Nothing. Then tried to wire pin4 to one side of switch and other side to ground. Still nothing.

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**Dwelsh** · 10-14-2018

Originally Posted by John Crosby

Safety switch has been eleminated. Tried wiring pin4 from auto trans connector to ground. Nothing. Then tried to wire pin4 to one side of switch and other side to ground. Still nothing.

http://www.competitiondiesel.com/for...d.php?t=170889 according to this write up all you need for it to start is ground pin 4. Unless the 15s ars different from a 12

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**John Crosby** · 10-14-2018

Yea. I read that exact forum page as well. And I’ve done that with no luck. Any way it could be something in the new program?

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**Dwelsh** · 10-14-2018

Originally Posted by John Crosby

Yea. I read that exact forum page as well. And I’ve done that with no luck. Any way it could be something in the new program?

You wouldn't think so. So when trying to start the truck does the cluster and everything light up?Then when you try to start it you've got nothing no clicks at all? Earlier you said you had power to the starter was that a typo? All plugs and grounds connected and clean? Not sure if any grounds even needed to be taken off or if they use a bell housing bolt for ground. But I've had a bad ground to the engine before cause a no crank condition. From what I've read about these swaps in the past hour it has got to be something simple.

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**John Crosby** · 10-14-2018

So it doesn’t click or anything. I have all the lights and everything showing to depress clutch and press start. I have power at the starter but it does nothing. I’m in agreeable it’s something simple but I just can’t put my finger on what it is. Been tryin to figure it out since yesterday.

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**Dwelsh** · 10-14-2018

Originally Posted by John Crosby

So it doesn’t click or anything. I have all the lights and everything showing to depress clutch and press start. I have power at the starter but it does nothing. I’m in agreeable it’s something simple but I just can’t put my finger on what it is. Been tryin to figure it out since yesterday.

Have you got a power probe? You could manually apply power to the starter and see if it turns. Check for good ground also. See a bad engine ground you would have lights and all. Did you have any engine grounds off?

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