Riviera V6-231 3.8L VIN C SFI (1989)
Body Control Module: Reading and Clearing Diagnostic Trouble Codes
Output
BCM OUTPUT DISPLAYS:
When troubleshooting a malfunction, the BCM output cycling can be used to determine if the output tests can be actuated regardless of the inputs and
normal program instructions. Once a test in outputs has been selected, the test will display "HI" and "LO" for three seconds in each state to indicate the
command. Actual circuit operation will depend on circuit integrity. If the test selected is not allowed under the current conditions a " =- =- " display will
result.
A brief summary of each output is provided below:
BO00
The "CYCLE NONE" display will not display "HI" or "LO" as this is a resting spot where no outputs will be cycled.
BO01
The "C/C VENT" display is "HI" when the vent solenoid is "ON" (energized). The cruise switch must be "ON" for this output to cycle.
BO02
The "C/C VAC" display is "HI" when the cruise control vacuum solenoid is "ON" (energized). The cruise switch must be "ON" for this output
to cycle.
BO04
The "COUR LMPS" display is "LO" when the courtesy lamp relay is "ON" (energized).
BO05
The "TWILIGHT" display is "LO" when the twilight relays are on (energized).
BO10
The "CHIME 1" display is "LO" when the intermediate chime is "ON" (sounding).
BO11
The "CHIME 2" display is "LO" when the slow chime is "ON" (sounding).
