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2hat does code #P0700 mean on a 2007 Chevy Silverado. 4x4 mean

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Jeff Armer

Cars & Trucks Master 15,575 Answers
Posted on Dec 22, 2016

Jeff Armer

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DTC P0700: Transmission Control Module (TCM) Requested MIL Illumination
DTC P0700 can not be cleared from the ECM until the related TCM codes have been cleared.

The transmission control module (TCM) uses the (GMLAN) to signal the engine control module (ECM) that the TCM is requesting malfunction indicator lamp (MIL) illumination. This happens when the TCM has determined that a failure affecting emissions has occurred in transmission control system. When the ECM receives the a message from the TCM, DTC P0700 will set.
You don't say which engine your's has ! Or which transmission .
Automatic Transmission - 4L60-E/4L65-E/4L70-E

You need to have TCM checked for codes .

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2hat does code #P0700 mean on a 2007 Chevy Silverado. 4x4 mean

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Jeff Armer

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What do3s the codes P0307 andP0449 mean on a 2007 Chevy Silverado 4x4

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2hat does code #P0700 mean on a 2007 Chevy Silverado. 4x4 mean

1 Answer

Jeff Armer

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Attachments: Added items

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What do3s the codes P0307 andP0449 mean on a 2007 Chevy Silverado 4x4

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