On-Board Diagnostics
On-board diagnostics can only be used on Cadillac models which have an on-board diagnostics panel. Enter diagnostics by depressing WARMER and OFF buttons on diagnostics panel. Service mode and codes will appear in display area. Current Code 51 (accident detected) cannot be cleared using on-board diagnostics; a scan tester is necessary to clear current Code 51. Current Code 34 will remain current after fault is repaired unless ignition is off long enough to allow 36-Volt Loop Reserve (36VLR) to fully discharge.
NOTE:
Failure to follow diagnostic procedures may result in extended diagnostic time and incorrect diagnosis and parts replacement.