I have a 1994 Pontiac Bonneville that is non-ODBII compliant but has a J1962 DLC plug underneat the steering column. The code reader displays LINK ERROR when I try to read the error codes. These are the pinouts on the type A connector:
(4) black (5) black with white stripe (8) black with white stripe (9) brown (14) green (16) orange
all other contacts are unpopulated.
Does anyone know how I can read the codes with this configuration? Any help much appreciated.