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OPERATION For information of the ICU, refer to these individ- ual components of the ICU: • CONTROLLER ANTILOCK BRAKE (CAB) (Refer to 8 - ELECTRICAL/ELECTRONIC CON- MODULES/CONTROLLER ANTILOCK BRAKE - OPERATION) • HYDRAULIC CONTROL UNIT (HCU) (Refer to 5 - BRAKES - ABS/HYDRAULIC/MECHANICAL/ REMOVAL NOTE: If servicing the controller antilock brake NOTE: Before proceeding, (Refer to 5 - BRAKES - CAUTION: The vacuum in the power brake booster (1) With the engine not running, pump the brake pedal 4-5 strokes until the pedal feel is firm. (2) Unclip the air cleaner cover (two clips) and move the cover aside. (3) Remove the air cleaner housing by pulling straight up. (4) Disconnect the negative (ground) cable from the battery and isolate the cable. (5) Unlatch the power distribution center, lift it up, and move it to the side. (6) Remove the vehicle wiring harness connector from brake fluid level switch in master cylinder Fig. 19 Integrated Control Unit (ICU) 1 - PUMP/MOTOR Fig. 20 Master Cylinder And ICU 1 - MASTER CYLINDER Fig. 21 Master Cylinder 1 - POWER BRAKE BOOSTER 5 - 100 BRAKES - ABS PT INTEGRATED CONTROL UNIT (ICU) - MK20E (Continued) |