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NHTSA Campaign 00V232011

SERVICE BRAKES, AIR:ANTILOCK

Issued by THOMAS BUILT BUSES, INC. · Reported Aug 7, 2000 · 4,780 vehicles affected

What's wrong

VEHICLE DESCRIPTION: SCHOOL BUS CHASSIS AND EMERGENCY VEHICLES BUILT WITH BENDIX AIR ABS WITH AN EC-17 1030R ELECTRONIC CONTROL UNIT (ECU), THERE HAVE BEEN REPORTS OF UNWANTED ABS ACTIVATION AT LOW SPEEDS CAUSED BY 1) CHAFED ABS WHEEL SPEED SENSOR WIRES ON ROTATING PARTS OR 2) A DAMAGED COMPONENT AT THE WHEEL END THAT GENERATES A CERTAIN TYPE OF ERRATIC SENSOR SIGNAL.

Consequence

THIS CONDITION COULD CAUSE THE ABS ECU TO EXHAUST THE AIR AT THE AIR BRAKE MODULATORS FOR ONE OR MORE OF THE WHEELS. THIS COULD RESULT IN EXTENDED BRAKING DISTANCES AND A POSSIBLE CRASH.

Remedy

DEALERS WILL REPLACE THE ABS ECU.

Vehicles affected by this recall

Make Model Year Units
THOMAS ER TRANSIT 1997 4,780
THOMAS ER TRANSIT 1998 4,780
THOMAS ER TRANSIT 1999 4,780
THOMAS ER TRANSIT 2000 4,780
THOMAS MVP EF 1997 4,780
THOMAS MVP EF 1998 4,780
THOMAS MVP EF 1999 4,780
THOMAS MVP EF 2000 4,780
THOMAS MVP ER 1997 4,780
THOMAS MVP ER 1998 4,780
THOMAS MVP ER 1999 4,780
THOMAS MVP ER 2000 4,780

Source: NHTSA Campaign 00V232011 on nhtsa.gov. To check the current repair status for a specific vehicle, use our free VIN decoder.