FREIGHTLINER UNSPECIFIED 1975: SERVICE BRAKES, AIR:ANTILOCK:CONTROL UNIT/MODULE
NHTSA Campaign ID Number: 78V086000
| Make | Model | Year |
|---|---|---|
| FREIGHTLINER | UNSPECIFIED | 1975 |
| Date Owners Notified | Date Received by ODI | Date Added to Database |
| 1978-06-01 | 1978-04-19 | 1979-10-12 |
Production Dates: 1975-01-01 - 1975-05-01
Manufacturers Involved: FREIGHTLINER LLC
Component: SERVICE BRAKES, AIR:ANTILOCK:CONTROL UNIT/MODULE
Potential Number Of Units Affected: 12
Report Initiator: ODI ODI Report
AN OPERATIONAL AMPLIFIER IN THE AXLE CONTROLLERS ON THE INVOLVED VEHICLES MAY DEVIATE FROM SPECIFICATIONS. THERE MAY ALSO BE AN OPENING IN A SOLDER CONNECTION BETWEEN THE PRINTED CIRCUIT BOARD AND THE NEGATIVE TERMINAL OF THE CAPACITOR. THESE CONDITIONS CAUSE THE ANTI-LOCK VALVE SOLENOID TO BE ENERGIZED CONTINUOUSLY.
THE INCORRECT CONTROLLER WILL BE REPLACED WITH A NEW ONE.
VEHICLE DESCRIPTION: HEAVY TRUCKS EQUIPPED WITH EATON ANTI-LOCK SYSTEMS.SYSTEM: SERVICE BRAKES; AXLE CONTROLLERS.CONSEQUENCES OF DEFECT: THE CONSTANTLY ENERGIZED SOLENOID PREVENTS APPLICATIONOF THE BRAKES ON THE AXLE BEING CONTROLLED BY THE AFFECTED ANTI-LOCK SYSTEM.THIS CONDITION WOULD LEAD TO LONGER VEHICLE STOPPING DISTANCES, AND THEPOSSIBILITY OF A VEHICLE ACCIDENT.NOTE: THE BRAKE WARNING LIGHT WOULD NOT BE ACTIVATED IF THIS TYPE OF FAILUREOCCURRED.
