I have an ECM Code P0700C

Tiny
SPOOKYLTLDAME
  • 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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Tuesday, December 20th, 2011 AT 4:32 PM

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Tiny
RASMATAZ
  • MEMBER

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-

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Tuesday, December 20th, 2011 AT 4:45 PM
Tiny
SPOOKYLTLDAME
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Where is the TCM located, please?

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Tuesday, December 20th, 2011 AT 4:56 PM
Tiny
RASMATAZ
  • MEMBER

Transmission Control Module At right front side of engine compartment

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Tuesday, December 20th, 2011 AT 5:00 PM
Tiny
SPOOKYLTLDAME
  • MEMBER

Thanks. Where is the PCM located, please?

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Tuesday, December 20th, 2011 AT 5:26 PM
Tiny
FACTORYJACK
  • EXPERT
  • 4,259 POSTS

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.

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Wednesday, December 21st, 2011 AT 5:27 AM

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