Toronado V6-231 3.8L (1986)
components for bent or damaged legs.
3.
Make sure both BCM and ECM have the correct PROM's for that model year.
4.
If the source of the intermittent problem has not been found and the intermittent condition persists:
A.
Verify good connections at the following components. Check each connection for proper latching and pins seated in the connector.
B.
Remove the following components, one at a time, in the order shown, using the Toronado/Trofeo Service Manual Section 8A-50. Jumper the
800 circuit while checking for reoccurrence of the intermittent condition. The order listed represents most likely to least likely cause of a
multiple communications code condition:
Oldsmobile:
^
ECC Head
^
BCM
^
Programmer
^
ECM
^
Central Power Supply (CPS) (on 1986-90 models)
^
BCM EPROM
^
IPC
^
Chime Module (on 1986 and 1987 models only)
^
ECM and EPROM
^
BCM EEPROM
