Antilock: control unit/moduleRecall 78V-132 · White Truck vehicles
WHITE MOTOR CORPORATION recall 78V-132 covers 39 White Truck vehicles for a antilock: control unit/module problem, reported to NHTSA on June 12, 1978.
Source: NHTSA recall 78V132000 and manufacturer quarterly reports. Started by the manufacturer.
The problem
THE INVOLVED VEHICLES MAY HAVE BEEN BUILT WITH POWER UNIT ANTI-SKID LOGIC MODULES ON TAG AXLE INSTALLATIONS INSTEAD OF THE CORRECT TRAILER TYPE MODULES. SINCE THE TAG AXLE SENSOR OUTPUT IS LESS THAN THAT OF THE POWER UNIT SENSOR, IT REQUIRES THE MORE SENSITIVE TRAILER MODULE. AS SENSOR OUTPUT OVER TIME DROPS BELOW MINIMUM REQUIREMENTS, ONE OF TWO THINGS WILL HAPPEN: (1) THE ANTI-LOCK SYSTEM ON THE TAG AXLE WILL SHUT DOWN AND THE CAB MOUNTED FAULT LAMP WILL LIGHT OR (2) THE SYSTEM WILL BECOME INOPERATIVE WITHOUT ACTIVATING THE FAULT LIGHT. THIS FAILS TO CONFORM TO FEDERAL MOTOR VEHICLE SAFETY STANDARD NO. 121, "AIR BRAKES".
The fix
DEALER WILL REPLACE THE INCORRECT ANTI-LOCK MODULE WITHOUT CHARGE TO OWNER.
VEHICLE DESCRIPTION: TRUCK TRACTORS.SYSTEM: SERVICE BRAKES; VACUUM BRAKE SYSTEM.CONSEQUENCES OF DEFECT: IF THE SYSTEM BECOMES INOPERATIVE, A BRAKE LOCK-UP,LOSS OF VEHICLE CONTROL AND AN ACCIDENT COULD OCCUR WITHOUT PRIOR WARNING.NOTE: THE ELECTRICAL POWER TO THE ANTI-LOCK SYSTEM SHOULD BE DISCONNECTED BYREMOVING THE ANTI-LOCK SYSTEM FUSE UNTIL THE DEFECT CAN BE CORRECTED.
Recall repairs are free. Confirm whether this recall is open on your vehicle by entering its VIN at nhtsa.gov/recalls.
Vehicles in this recall
Built from May 1, 1977 to February 1, 1978. Not every vehicle in these model years is included; check by VIN.