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The Chevy Silverado's P0700 code indicates a problem detected by the PCM with the transmission control system. As a result, the Check Engine light will illuminate and the truck will operate in limp mode until the issue is resolved. To pinpoint the exact cause, a diagnostic test is necessary, which typically ranges from $90 to $115. The code may be triggered by a malfunctioning transmission control module, which usually costs between $550 to $850 to replace. Alternatively, a faulty shift solenoid could be another culprit, with replacement costs ranging from $325 to $370. Other potential triggers for the P0700 code include a short circuit, malfunctioning valve body, or low fluid levels.
When you see this code pop up in your Chevy Silverado, it means that the Powertrain Control Module (PCM) has picked up on a problem with the transmission control system.