Conditions for Clearing the MIL/DTC

WARNING: This page is about a different car, the 2004 Buick Rendezvous. However, it is still accessible from the selected car via links, so may be relevant.

The control module turns OFF the malfunction indicator lamp (MIL) after 4 consecutive ignition cycles that the diagnostic runs and does not fail.
A current DTC, Last Test Failed, clears when the diagnostic runs and passes.
A history DTC clears after 40 consecutive warm-up cycles, if no failures are reported by this or any other emission related diagnostic.
Clear the MIL and the DTC with a scan tool.

DTC P0700 Transmission Control Module (TCM) Requested MIL Illumination

Step	Action	Yes	No
1	Did you perform the Diagnostic System Check-Engine Controls?	Go to Step 2	Go to Diagnostic System Check - Engine Controls
2	Start the engine. Allow the engine to reach the normal operating temperature. Observe the DTC Information with a scan tool. Does the scan tool display any ECM DTCs other than DTC P0700?	Go to Diagnostic Trouble Code (DTC) List	Go to Diagnostic System Check - Automatic Transmission (3.4L) or Diagnostic System Check - Automatic Transmission (3.6L) in Automatic Transmission - 4T65-E