LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Oldsmobile >> 1992 >> Toronado Base >> Repair and Diagnosis (Single Page) >> Engine Performance >> System >> Engine Controls - Tests W/Codes - Pcm/BCM >> Self-Diagnostic System >> Manual Operation Of Service Mode >> Specific Test Selection
April 5, 2026: LEMON Manuals is launched! Read the announcement.

Specific Test Selection

Following test type selection, first of many specific tests will be made available for selection; 4 characters of this display represent a test code. First 2 characters of test code are letters which identify system and test type selected; last 2 characters are numbers which identify specific test. For example: BD51 signifies BCM system, DATA test type, test 51; EI04 signifies ECM system, INPUT test type and test 04. See Fig 1 - Fig 12 and DATA DISPLAY CODES, INPUT DISPLAY CODES, OUTPUT DISPLAY CODES and OVERRIDE DISPLAY CODES under SELF-DIAGNOSTIC SYSTEM.

Scroll to a lower specific test number by depressing FAN (Down) button (ECCP) or NO key (CRT). Scroll to a higher specific test number by depressing FAN (Up) button (ECCP) or YES key (CRT). System will automatically display values for specific test number displayed.

NOTE: To cancel a specific test type selection and activate a repeat of test type selection process, depress OFF button on ECCP of non-CRT equipped vehicles or touch LEVL key on CRT monitor control panel of CRT equipped vehicles.
Fig 1: ECM (PCM) System Diagnostic Flow Chart (w/o CRT - 1 of 2)
G91B11875Courtesy of GENERAL MOTORS CORP.
Fig 2: ECM (PCM) System Diagnostic Flow Chart (w/o CRT - 2 of 2)
G91C11876Courtesy of GENERAL MOTORS CORP.
Fig 3: BCM System Diagnostic Flow Chart (w/o CRT - 1 of 2)
G91D11877Courtesy of GENERAL MOTORS CORP.
Fig 4: BCM System Diagnostic Flow Chart (w/o CRT - 2 of 2)
G91E11878Courtesy of GENERAL MOTORS CORP.
Fig 5: IPC System Diagnostic Flow Chart (w/o CRT)
G91F11879Courtesy of GENERAL MOTORS CORP.
Fig 6: SIR System Diagnostic Flow Chart (w/o CRT)
G91I11880Courtesy of GENERAL MOTORS CORP.
Fig 7: ECM (PCM) System Diagnostic Flow Chart (w/CRT - 1 of 2)
G91J11881Courtesy of GENERAL MOTORS CORP.
Fig 8: ECM (PCM) System Diagnostic Flow Chart (w/CRT - 2 of 2)
G91A11882Courtesy of GENERAL MOTORS CORP.
Fig 9: BCM System Diagnostic Flow Chart (w/CRT - 1 of 2)
G91B11883Courtesy of GENERAL MOTORS CORP.
Fig 10: BCM System Diagnostic Flow Chart (w/CRT - 2 of 2)
G91C11884Courtesy of GENERAL MOTORS CORP.
Fig 11: IPC System Diagnostic Flow Chart (w/CRT)
G91D11885Courtesy of GENERAL MOTORS CORP.
Fig 12: SIR System Diagnostic Flow Chart (w/CRT)
G91E11886Courtesy of GENERAL MOTORS CORP.