Transmission issues - P0976

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Aug 12, 2016 | 10:00 PM

imprezaguy02

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Transmission issues - P0976

Hello all.

Recently picked up a 2004 Ex 6.0L. Drove great for a bit, then it started shift badly, then finally the Tow/Haul light came on.

The original codes were P0976 and P0755. P0755 being shift solenoid B, and the P0976 being SSB Control Circuit low. I replaced Solenoid B and that code went away.

P0976 stayed with no change in how the truck drives. Replaced the internal harness today, and again no change.

At this point I'm at a loss. I'm wondering if it's something between the PCM and the transmission?

Any help would be greatly appreciated.

Aug 12, 2016 | 10:28 PM

Mark Kovalsky

Frmr Ford Trans Engr

Joined: Aug 1999

Posts: 24,717

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From: SE Florida

Most harness issues are in the harness from the PCM to the trans, not in the internal harness. The wiring for solenoid B needs to be electrically checked between the PCM and the trans.

Aug 12, 2016 | 10:30 PM

imprezaguy02

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Thanks Mark! Disregard the message I sent you. Thanks for replying here.

Does anyone have a TPS for this? Or a walk through?

Aug 13, 2016 | 12:05 AM

Yahiko

Fleet Owner

Joined: Apr 2012

Posts: 27,307

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From: Spanaway

Quote:

Originally Posted by imprezaguy02

Thanks Mark! Disregard the message I sent you. Thanks for replying here.

Does anyone have a TPS for this? Or a walk through?

Have not seen an acronym called TPS. What are you looking for?
I have access to the books and should be able to post a diagram and the pinpoint testing.

Sean <BR>

6.0L Tech Folder