Code B333, Loss Of Sir Data: Notes

WARNING: This page is about a different car, the 1992 Oldsmobile Toronado. However, it is still accessible from the selected car via links, so may be relevant.

Code B333 will set if communication between DERM (SIR controller) and BCM is lost. If Code B333 is set, ELECTRICAL PROBLEM and INFLATABLE RESTRAINT telltales will be lit.

NOTE: Test numbers refer to numbers on diagnostic chart.

Checks to see if other data line components are experiencing communications problems.
Checks status of data line at DERM. Normal data line voltage is between .1 and 4.5 volts.