No lockout for Reverse P0803

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Mar 10, 2004 | 08:23 PM

bandit_99

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No lockout for Reverse P0803

Got a problem, and was hoping somebody could shed some light on my situation.

Just before I put my car into storage (99 C5) I was on the freeway shifting from 4 to 5 and I tapped Reverse....no damage- just a quick growl to let me know that it was not in 5th. I tried once more and the same thing happened. My trans is not locking out R when the car is in motion. I pulled the code and its P0803 1-4 Upshift Solenoid Control Circuit (M/T) -B

I replaced the solenoid on the trans and that is not the problem. We found out there is no voltage going to it-

So are there any simple things I can check? I'm worried its my PCM- which seems like a pricey fix...

Any thoughts?

Thanks,
Dave

Mar 10, 2004 | 08:28 PM

slow

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From: Orlando

any chance you have your CAGS and reverse lockout plugs wrong?

i know on the f-body, no voltage, you can't get reverse, you need to energize the lockout to allow you to go into reverse.

Ryan.

Mar 10, 2004 | 08:32 PM

Smitty

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From: B'Ham Al

is that the only code?....have you check all fuses?

Mar 10, 2004 | 08:40 PM

bandit_99

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Quote:

Originally Posted by slow

any chance you have your CAGS and reverse lockout plugs wrong?

i know on the f-body, no voltage, you can't get reverse, you need to energize the lockout to allow you to go into reverse.

Ryan.

No, this won't be it. I've had cags defeated via LS1 edit for 2 years when this happened seemingly out of the blue. See, I think it failed in the open position- so its not locking anything out. I installed a new solenoid that was in the closed position and the only gear I could use (if I remember) was reverse and 2 I believe....

I'm not the most mechanically inclined, so forgive me if my post makes no sense. Thanks!

Mar 10, 2004 | 08:42 PM

bandit_99

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Quote:

Originally Posted by IMKMFAST

is that the only code?....have you check all fuses?

Fuses- AOK.

Here are the other codes, all are History:
B0502 RH DRL Relay Circuit
B0503 RH DRL Relay Circuit
B0507 LH DRL Relay Circuit
B0508 LH DRL Relay Circuit

I just pulled these out last night.

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