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Old 12-03-2013, 10:08 AM
TransEngineer TransEngineer is offline
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Concentrate on the P0882 fault. That means no 12V power from the trans relay / TIPM when the truck is first started.

At startup, the PCM checks to see that there is no 12V power coming from the trans relay (the relay should be open at that point, so no power coming through). If it sees no 12V feed (i.e. if everything is OK so far), it signals the trans relay to close. It then checks to see that there IS power coming from the relay. P0882 means that, on this second check, there was still NO power coming from the relay. So I'd guess either a wiring problem (in the signal or power feed between trans relay and PCM) or a bad trans relay.

Fix the P0882 first, and then see if you still have the P0750 fault.
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