Conditions for Setting the DTC
WARNING: This page is about a different car, the 2016 GMC Acadia, 2016 Chevrolet Traverse, and 2016 Buick Enclave. However, it is still accessible from the selected car via links, so may be relevant.
B1340 00
Current out of the module does not match the current returning to the module within 5 amps.
B1340 0B
The absolute current has exceeded the maximum value allowed.
B1340 42
This DTC will set if the module calibration is not programmed.
B1340 4B
This DTC will set if the module calibration is not learned.