NHTSA Campaign 92V029000

ELECTRICAL SYSTEM:IGNITION:MODULE

Issued by NEOPLAN USA CORP. · Reported Mar 6, 1992 · 1,439 vehicles affected

What's wrong

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.

Consequence

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.

Vehicles affected by this recall

Make Model Year Units
NEOPLAN INTER-CITY BUS 1986 1,439
NEOPLAN INTER-CITY BUS 1987 1,439
NEOPLAN INTER-CITY BUS 1988 1,439
NEOPLAN INTER-CITY BUS 1989 1,439
NEOPLAN INTER-CITY BUS 1990 1,439
NEOPLAN INTER-CITY BUS 1991 1,439
NEOPLAN INTER-CITY BUS 1992 1,439
NEOPLAN TRANSIT BUS 1986 1,439
NEOPLAN TRANSIT BUS 1987 1,439
NEOPLAN TRANSIT BUS 1988 1,439
NEOPLAN TRANSIT BUS 1989 1,439
NEOPLAN TRANSIT BUS 1990 1,439
NEOPLAN TRANSIT BUS 1991 1,439
NEOPLAN TRANSIT BUS 1992 1,439

Source: NHTSA Campaign 92V029000 on nhtsa.gov. To check the current repair status for a specific vehicle, use our free VIN decoder.