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Home >> Jeep >> 2012 >> Compass Limited, FWD, Automatic CVT >> Repair and Diagnosis >> External Pages >> Different car >> Section 128 (Radio Frequency (RF Hub) Module - Electrical Diagnostics) >> DTC Troubleshooting >> B1A28-00-ECM Mismatch With Skim >> Set Condition:

Set Condition:

WARNING: This page is about a different car, the 2012 Chrysler 300. However, it is still accessible from the selected car via links, so may be relevant.

When a valid FOBIK is used and the RF Hub receives a mismatching cryptology code from the PCM as part of the routine, the RF Hub will send the command to flash the Security warning lamp and set this DTC as active. The engine will not start and the DTC will remain active until the RF Hub and PCM complete a successful handshake.