Recall
Neoplan Transit Bus — 92V029000
NHTSA ID
92V029000
Make
Neoplan
Model
Transit Bus
Years Affected
1991
Recall Date
1992-03-06
Component
ELECTRICAL SYSTEM:IGNITION:MODULE
Units Affected
1,439
Completion Rate
—
Mfr Campaign No.
Summary
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.