Conditions For Setting Code

WARNING: This page is about a different car, the 1990 Cadillac Allante. However, it is still accessible from the selected car via links, so may be relevant.

Code B124 will set if the following conditions are present for 30 seconds:

Ignition "ON".
Transaxle in 4th gear (EI82 "HI").
Engine RPM greater than 1300.
No vehicle speed input to the BCM from the ECM.

During the time the failure is present the continuous compressor at idle will be disabled.