1999 Freightliner Sterling problems

What is wrong

Vehicle description: heavy duty trucks and school bus chassis 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.

Risk

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.

Recall number 00V232002 · Recall details

The tone ring tooth profile of an uncoated hydraulic disc brake degrades after exposure to corrosive environments.when the tone ring tooth profile has degraded in freightliner vehicles, the ABS warning light illuminates reliably to warn the operator to have the ABS system serviced.in response to odi's inquiry, freightliner has issued information to all affected owners that alerts owners to the importance of responding to the illuminated ABS warning light.freightliner adopted coated rotors during 2002 (date varies by model). Since neither odi nor freightliner have accurate data to forecast the corrosion resistance of coated rotors, odi plans to conduct a future survey at freightliner (in 18-24 months) to evaluate the durability of the coated rotors.

EA02036