Action Taken When DTC Sets

The BCM stores DTC B2947 in memory.
The BCM sends a message to the instrument cluster to turn the SECURITY indicator ON.
In addition, the BCM will take one of two actions:
- If the Passlock sensor power circuit is shorted to ground when attempting to start the engine, the BCM will NOT send a message to the PCM to enable fuel delivery to the engine. The vehicle will exhibit an engine no start or starts then stalls condition.
- If the Passlock sensor power circuit is shorted to ground after the engine has started, the BCM enters a fail-enable mode. Upon subsequent engine start attempts, the BCM will send a password message to the PCM via the Class 2 serial data link to enable fuel delivery to the engine. The engine will start.