The defect
A WIRE FROM THE STOP LAMP SWITCH TO THE SPEED CONTROL AMPLIFIER IS MISSING. THIS WIRE SENDS A SIGNAL TO THE CRUISE CONTROL TO DISENGAGE WHEN THE BRAKES ARE APPLIED. CONSEQUENCE OF DEFECT: WHEN THE CRUISE CONTROL IS ON AND THE BRAKES ARE APPLIED, THE CRUISE CONTROL WILL NOT DISENGAGE. THIS CAUSES THE AMBULANCE SPEED TO REMAIN CONSTANT, CAUSING POOR BRAKE PERFORMANCE AND LOSS OF SPEED CONTROL WHICH CAN RESULT IN AN ACCIDENT.
The remedy
INSTALL REDESIGNED WIRING HARNESS WHICH INCLUDES MISSING CONNECTION.
NHTSA's own wording · initiated by MFR
Vehicles covered
| Model | Model years |
|---|---|
| Wheeled Coach 1600 Series | 1981, 1982, 1983, 1984, 1985, 1986 |
| Wheeled Coach 1800 Series | 1981, 1982, 1983, 1984, 1985, 1986 |
| Wheeled Coach Ambulance | 1981, 1982, 1983, 1984, 1985, 1986 |
Components: VEHICLE SPEED CONTROL
Model years in this recall
NHTSA complaints and the number of recall campaigns for each model year this recall covers.
| Model | Year | Complaints | Recalls |
|---|---|---|---|
| Wheeled Coach 1600 Series | 1981 | 0 | 1 |
| Wheeled Coach 1600 Series | 1982 | 0 | 1 |
| Wheeled Coach 1600 Series | 1983 | 0 | 1 |
| Wheeled Coach 1600 Series | 1984 | 0 | 1 |
| Wheeled Coach 1600 Series | 1985 | 0 | 1 |
| Wheeled Coach 1600 Series | 1986 | 0 | 1 |
| Wheeled Coach 1800 Series | 1981 | 0 | 1 |
| Wheeled Coach 1800 Series | 1982 | 0 | 1 |
| Wheeled Coach 1800 Series | 1983 | 0 | 1 |
| Wheeled Coach 1800 Series | 1984 | 0 | 1 |
| Wheeled Coach 1800 Series | 1985 | 0 | 1 |
| Wheeled Coach 1800 Series | 1986 | 0 | 1 |
| Wheeled Coach Ambulance | 1981 | 0 | 1 |
| Wheeled Coach Ambulance | 1982 | 0 | 1 |
| Wheeled Coach Ambulance | 1983 | 0 | 1 |
| Wheeled Coach Ambulance | 1984 | 0 | 1 |
| Wheeled Coach Ambulance | 1985 | 0 | 1 |
| Wheeled Coach Ambulance | 1986 | 0 | 1 |
Other vehicle speed control recalls in 1986
12 of the 173 recall campaigns reported to NHTSA in 1986 concerned the vehicle speed control; COLLINS INDUSTRIES,INC. filed 2 campaigns in all.
| 86V146000 7 Nov 1986 | CHRYSLER CORPORATION |
| 86V132000 2 Oct 1986 | TOYOTA MOTOR CO., LTD. |
| 86V130000 19 Sept 1986 | GENERAL MOTORS CORP. |
| 86V129000 15 Sept 1986 | VOLVO OF AMERICA CORP. |
| 86V110000 12 Aug 1986 | FORD MOTOR COMPANY |
| 86V080000 20 Jun 1986 | BAYERISCHE MOTOREN WERKE |
| 86V079000 16 Jun 1986 | THOMAS BUILT BUSES, INC. |
| 86V067000 27 May 1986 | MACK TRUCKS, INCORPORATED |
NHTSA recalls (public domain) · all recalls of 1986