Campaign 80V-071

In the process of assembly, which includes tapping into the chassis stop light switch circuit, a break occurred in the circuit that provides…

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Defect summary

IN THE PROCESS OF ASSEMBLY, WHICH INCLUDES TAPPING INTO THE CHASSIS STOP LIGHT SWITCH CIRCUIT, A BREAK OCCURRED IN THE CIRCUIT THAT PROVIDES CURRENT TO THE EMERGENCY BRAKING HYDRAULIC PUMP MOTOR. THIS CAUSES THE HYDRAULIC SERVICE BRAKE, HYDRAULIC POWER ASSIST BACK-UP SYSTEM TO BE INOPERATIVE WHEN THE IGNITION SWITCH IS IN THE "OFF" POSITION.

Remedy

DEALER WILL CORRECT THE WIRING WITHOUT CHARGE.

Notes

VEHICLE DESCRIPTION: SCHOOL BUSES.SYSTEM: SERVICE BRAKES; EMERGENCY BRAKING; HYDRAULIC PUMP MOTOR.CONSEQUENCES OF DEFECT: THIS SITUATION WILL NORMALLY OCCUR WHEN THE VEHICLE ISSTOPPED OR PARKED. THE FORCE REQUIRED TO BE APPLIED TO THE BRAKE PEDAL TO HOLDTHE VEHICLE STATIONARY WILL BE ABNORMALLY HIGH AND MAY EXCEED THE PHYSICALSTRENGTH OF MOST DRIVERS. AN ACCIDENT COULD OCCUR IF THE VEHICLE MOVESUNEXPECTEDLY.NOTE: WHEN ENGINE IS TURNED OFF AND BRAKES ARE APPLIED A WARNING SIGNAL OF THEPROBLEM WILL BE GIVEN BY THE BRAKE LAMP, BRK ELEC MTR LAMP, AND THE BRAKEBUZZER. UNTIL CORRECTED, THE PARKING BRAKE SHOULD ALWAYS BE APPLIED PRIOR TOTURNING THE IGNITION SWITCH OFF.

Source: NHTSA ODI recalls file, campaign 80V071000. Text as published by NHTSA.
Vehicles covered

One product line is covered

Owner complaints filed with NHTSA about brakes on these vehicles: 0, of which 0 involved a crash, fire, injury or death. Complaints are not verified by NHTSA.

Vehicles covered by campaign 80V-071
MakeModelModel yearsComplaints on this component
WayneWayne19800
Source: NHTSA ODI recalls and complaints files. Equipment, tire and child-seat campaigns list products, not vehicles.