DTC P0646 Chevrolet
Smart Key Immobilizer Module Invalid Key
Smart Key Immobilizer Module Invalid Key
Description
Key on, and the PCM received a message from the Smart Key Immobilizer Module (SKIM) that an invalid key had been inserted.
Cause and Solution
A theft attempt may have occurred.Obtain the correct key and attempt to start the vehicleDo a PCM Reset function to clear the code after engine startup
Video Guide
Diagnostic Info
- DTC Code: P0646
- Brand: Chevrolet