1984-1986 MARQUIS 1984-1987 LYNX 1984-1992 MARK VII 1984-1994 TOPAZ 1984-1997 CONTINENTAL, COUGAR, GRAND MARQUIS, TOWN CAR 1986-1997 SABLE 1987-1989 TRACER 1991-1994 CAPRI 1991-1997 TRACER 1995-1997 MYSTIQUE
1985-1989 XR4TI 1988-1990 SCORPIO
1983-1997 RANGER 1984-1990 BRONCO II 1984-1997 ECONOLINE, F-150-350 SERIES 1986-1997 AEROSTAR 1991-1997 EXPLORER 1995-1997 WINDSTAR
1984-1991 C SERIES, CL-CLT-9000 SERIES 1984-1997 F & B SERIES, L SERIES 1986-1997 CARGO SERIES 1996-1997 AEROMAX, LOUISVILLE
This TSB article is being republished in its entirety to update the applicable model years.
Electrical system concerns that are due to diode failure may be serviced with an approved Ford service diode. Some electrical diodes used in early production vehicles are color coded for the purpose of size identification while others are stamped with a manufacture number. All Ford service diodes and current production diodes are identified by manufacture number.
If service is required, refer to the appropriate model/year Electrical and Vacuum Troubleshooting Manual (EVTM) to determine the size and location of the diode(s). Refer to the following Electrical Diode Application Chart for the correct service part number.
IF THE DIODE REQUIRING REPLACEMENT DOES NOT HAVE THE SAME RATING AS LISTED IN THE APPLICATION CHART, USE THE NEXT HIGHER RATED DIODE.