Okay, try this:
Go under the dash and disconnect the stop light switch. I attached a picture for you.
https://www.2carpros.com/articles/brake-lights-not-working
See if the issue is still present when you press the pedal.
If it is, replace the TIPM.
Roy
REMOVAL
1. Disconnect the negative and positive battery cables.
2. Remove the battery thermal guard.
3. Remove the battery.
Integrated Power Module
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4. Using a flat-bladed screwdriver, twist the Integrated Power Module (IPM) bracket retaining latch outward to free the IPM from its mounting bracket
Disconnecting IPM
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5. Rotate the IPM counter-clockwise to access and disconnect the electrical connectors.
6. Remove the IPM bracket clips from the hinge.
INSTALLATION
1. Snap the left side of the Integrated Power Module (IPM) housing in its mounting bracket and connect the various electrical connectors.
NOTE: Ensure that the Connector Positive Assurance (CPA) on the five-pin B+ connector is positively engaged to prevent generating a Diagnostic Trouble Code (DTC).
2. Rotate the IPM clockwise until secured in mounting bracket. An audible click may be heard.
3. Install the battery.
4. Install the battery thermal guard.
5. Connect the negative and positive battery cables.
6. Using a scan tool, check for any stored diagnostic trouble codes. Ensure that all vehicle options are operational.
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Saturday, February 27th, 2021 AT 1:46 PM