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CONTROLS AND INSTRUMENTS
NOTE
[These are not signs of ABS malfunction]
Soon after you start the engine, the sound of valve working may be heard from
the rear of the vehicle or underside of the cab. This sound is from a self-check
by the ABS system and is normal.
When ABS is properly operating, vibration is felt on the steering wheel or a
mechanical operating sound is heard.
When ABS is activated while the exhaust brake is in operation, the exhaust
brake may disengage.
ABS is more likely to activate when the brakes are applied during cornering or
driving over a bump. This is because inside wheels or wheels that have gone
over the bump tend to lock.
ABS is not activated immediately after starting the vehicle. It is activated only
when the vehicle speed reaches approx. 10 km/h (6 MPH). ABS operation is
inactive when the vehicle speed reduces to approx. 5 km/h (3 MPH).
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