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.