Wiring - Blown Fuses Caused by Rear Harness
85mazda04Category 15 016/85
10/2/85
1979-1985 RX-7
SUBJECT Rear Harness
DESCRIPTION
Many electrical problems and blown fuses may be caused by a short circuit in the rear harness. The rear harness may be cut by a sharp metal edge where the harness is routed over the inner wheel well. Some electrical problems reported from the field include:
PROBLEM RESULT
"RADIO, ANTENNA" fuse blown Radio, antenna inoperative
"TAIL, ILLUM" fuse blown Tail lights, head lights, license plate lights inoperative
"METER, BACK" fuse blown Meters, warning lights, back up lights inoperative
"OPENER" fuse blown Fuel door release inoperative
Open circuit in rear harness Rear defroster or rear wiper inoperative
Short circuit in rear harness Rear wiper operates with wiper switch in "OFF"
position
If this problem is found, repair the rear harness as necessary and wrap the harness with foam rubber to protect the harness from contact with the sharp metal edges in the area shown.
To prevent this problem, the routing of the rear harness has been changed since the production of July 11, 1984.
VIN OF PRODUCTION CHANGE
RX-7: JM1FB33 F0852204 July 11, 1984