32. OPERATION OF ABS AND ABS/ASR 32.4 TROUBLESHOOTING When the truck starting switch is turned on, if the warning lamp does not light up, it may be broken. In this case, replace the lamp. If the ABS/ASR system malfunctions while being used, the warning lamp (Red) will light up. In this case, stop the truck at a safe place immediately, then ask your Komatsu distributor to carry out. The positions of each switch and the statuses of the correspond- ing warning lamps are as follows. Starting switch ABS/ASR main switch Warning lamp OFF OFF Goes off OFF ON Goes off ON OFF Lighted (Normal) Stays lighted until travel speed rises to about 10 km/h (6.2 MPH), then goes off (Normal).
Lights up when a fault ON ON occurs (Malfunction). 5-31