123
1-pressure sensor; 2-fuses; 3-pilot lamp; 4-ignition switch; 5-diagnostic socket; 6-diagnostics switch; 7-
rotation sensors; 8-front axle modulator; 9-rear axle modulator
Figure 103(b) - The Scheme of Connecting Wabco Control Unit Plugs (for 4
х
4 trucks)
To activate the diagnostics mode it is necessary to connect the ABS lamp to the battery
minus terminal for 0.5 to 3 seconds by means of ABS diagnostics switch button as shown in Fig.
104.
Figure 104 - Error Codes (Blink-Codes) Display