Mechanics

I HAVE AN ECM CODE P0700C

2003 Cadillac CTS • 60,000 miles

What do I do about this code? Any way to reset? Where is the 02 sensor located?
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Spookyltldame
December 20, 2011.




P0700 - Transmission Control System Malfunction

Try disconnecting the battery and the TCM for 30mins and then reconnect and see what happens-Most likely its gonna be the TCM if the code returns-

Rasmataz
Dec 20, 2011.
Where is the TCM located, please?

Tiny
Spookyltldame
Dec 20, 2011.
Transmission Control Module At right front side of engine compartment

Rasmataz
Dec 20, 2011.
Thanks. Where is the PCM located, please?
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Tiny
Spookyltldame
Dec 20, 2011.
A code P0700 in the PCM, is nothing other than an informative code, that indicates the transmission control module has requested the MIL(check engine light) to illuminate. From there, you would need to request fault codes from the TCM. This does not indicate you have a transmission control module that is faulty. Since the transmission control module can not illuminate the light itself, it requests the PCM to do it, and sets this code. You need to take it one step further, and find out what DTC(s) are present in the TCM. The PCM is located on a bracket over the RH(passenger) side cam cover.

Factoryjack
Dec 21, 2011.

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