Defect
VEHICLE DESCRIPTION: LIGHT DUTY PICKUP TRUCKS. THE AFFECTED VEHICLES WERE BUILT WITH AN IGNITION SWITCH AND WIRING THAT COULD OVERHEAT. HIGH ELECTRICAL CURRENT LOADS PASS THROUGH THE SWITCH WHEN THE BLOWER MOTOR IS OPERATED ON HIGH FOR AN EXTENDED PERIODS OF TIME.
Consequence
THIS COULD CAUSE THE IGNITION SWITCH AND WIRING TO OVERHEAT.
Remedy
DEALERS WILL INSTALL A RELAY AND OVERLAY HARNESS.