DESCRIPTION The occupant detection ECU receives signals from the acceleration sensor (airbag ECU assembly) and skid control ECU (brake booster with master cylinder assembly) via CAN communication.
CAUTION / NOTICE / HINT NOTICE: After turning the power switch off, waiting time may be required before disconnecting the cable from the negative (-) auxiliary battery terminal. Therefore, make sure to read the disconnecting the cable from the negative (-) auxiliary battery terminal notices before proceeding with work. Click here HINT:
PROCEDURE
(a) Check for electronically controlled brake system DTCs. Click here OK: DTCs are not output.
(a) Using the Techstream, check if the CAN communication system is functioning normally. OK: CAN communication system is functioning normally. HINT: Refer to Communication Bus Check in CAN Communication System. Click here
(a) Turn the power switch off. (b) Connect the Techstream to the DLC3. (c) Turn the power switch on (IG) and turn the Techstream on. (d) Enter the following menus: System Select / Health Check. OK: DTCs are not output.
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Toyota Avalon Service & Repair Manual > Cooling Fan System: On-vehicle Inspection
ON-VEHICLE INSPECTION PROCEDURE 1. INSPECT COOLING FAN SYSTEM CAUTION: To prevent injury due to contact with an operating cooling fan, keep your hands and clothing away from the cooling fan when inspecting the cooling fan system. (a) Connect the Techstream to the DLC3. (b) Turn the engine switch on ...