Neoplan 1986–1992 Electrical System recall
Recalled March 6, 1992 · NHTSA recall 92V029000 · Neoplan
Hazard
UNINTENDED ENGINE ACCELERATION WHILE THE BUS IS IN GEARMAY RESULT IN A LOSS OF VEHICLE CONTROL AND AN ACCIDENT.
Remedy
INSTALL A GROUND INTERLOCK TO GROUND CIRCUIT 510 IN THE DDEC SYSTEM ANYTIME THE PTO IS DISABLED FOR ANY REASON. THE GROUND ELIMINATES THE STRAY VOLTAGE EFFECT BETWEEN THE ECM CONNECTOR AND CIRCUIT 510.
Units
1,439 units
Description
STRAY VOLTAGE INDUCED ON THE POWER TAKEOFF (PTO) SIGNAL CIRCUIT 510 MAY OCCUR WHEN THE ELECTRONIC CONTROL MODULE (ECM) CONNECTOR GETS WET, CAUSING UNINTENDED ENGINE ACCELERATION.
What to do
INSTALL A GROUND INTERLOCK TO GROUND CIRCUIT 510 IN THE DDEC SYSTEM ANYTIME THE PTO IS DISABLED FOR ANY REASON. THE GROUND ELIMINATES THE STRAY VOLTAGE EFFECT BETWEEN THE ECM CONNECTOR AND CIRCUIT 510.
Product
Neoplan INTER-CITY BUS · Neoplan TRANSIT BUS
Manufacturer(s)
NEOPLAN USA CORPORATION
Source: U.S. National Highway Traffic Safety Administration. Official recall notice on nhtsa.gov →