B1001 BUICK, CADILLAC, CHEVROLET, GMC, PONTIAC, SATURN: SDM OPTION CONFIGURATION ERROR.
POST UPDATED IN February, 2023
B1001 BUICK, CADILLAC, CHEVROLET, GMC, PONTIAC, SATURN: SDM OPTION CONFIGURATION ERROR.
The SDM (Inflatable Restraint Detection and Diagnostic Module) has a 4-digit number key. When the ignition switch is activated, the SDM compares this information with that saved in the BCM (Body Control Module). It carries out this action through a serial data communication circuit.
If this primary data which is in the SDM is not equivalent to the code stored in the BCM, the diagnostic code B1001 OBDII will be set.
Reasons to set the B1001 OBD2 fault code :
To troubleshoot DTC B1001 OBDII, try this: