2011 Ford F150 5.0L Engine Fault Codes B2100 and B0100: What Do They Mean?

Model: 2011 F150 5.0L Fault Code: B0100 Posted: 2018-04-05 15:09

My 2011 Ford F150 with a 5.0L engine is showing two fault codes from the Powertrain Control Module (PCM): B2100 indicating 'Door Driver Key Cylinder Switch Failure' and B0100, which is labeled as 'ISO/SAE Reserved'. I'm unsure about the exact implications of these codes, especially how they might affect vehicle operation or safety. Can anyone provide clarity on what these codes mean and whether they require immediate attention or can be safely ignored?