Control Unit Operation 5 1 2 6 7 8 4 3 2 1 I 5 6 3 7 8 87a 4 10 13 9 87 85 86 30 AMP MIC 13P CN1 11 13 12 6 5 AMP MIC 13P 3 1 13 12 9 7 AWS0480L Figure 9 Characteristic of Operation S0802195K Page 23 Electrical System CHARGE L5 ENGINE STOP ENGINE WARNING L3 BRAKE OIL PRESS L10 PARK BRAKE L12 AIR CLEANER PREHEAT L1 MAINTENANCE L11 BUZZER CIRCUIT Reference Number Description 1 Instrument Panel 2 Starter Switch 3 Forward Lever Switch 4 Reverse Lever Switch 5 Fuse Box 6 Control Unit Reference Number Description 7 Warning Buzzer 8 Alternator 11 Brake Oil Pressure Switch 12 Parking Brake Pressure Switch 13 Alarm Relay Input Output 1 When starter switch is "ON." All indicator lights are turned on and turned off after 2 - 2.5 seconds.
At this time the warning buzzer will sound. 2 When "I" terminal voltage of alternator. is below 12 ±1 V. The charging light,L5, will be alight. is above 12 ±1 V. The charging light,L5, will be unlighted. 3 When "I" terminal voltage of alternator is above 12 ±1 V. Brake oil pressure switch is "ON." Warning buzzer sounds immediately. Forward and reverse lever switch is "ON" and parking brake pressure switch is "ON." Warning buzzer sounds immediately.