DESCRIPTION The rear center ultrasonic sensor LH is installed to the rear bumper. The clearance warning ECU assembly detects obstacles based on signals received from the rear center ultrasonic sensor LH. If the rear center ultrasonic sensor LH has an open circuit or other malfunction, it will not function normally.
CAUTION / NOTICE / HINT NOTICE: If DTCs are output after repairs, turn the engine switch on (IG) and the intuitive parking assist system on. Then clear the DTCs. Click here
PROCEDURE
(a) Check for DTCs. Body Electrical > Advanced Parking Guidance/ICS/Intuitive P/A > Trouble Codes
(a) Replace the rear center ultrasonic sensor LH with a known good one. Click here HINT: All of the sensors are interchangeable. To confirm whether a sensor is functioning normally, switch it with a known good sensor from the other end of the vehicle.
(a) Clear the DTCs. Body Electrical > Advanced Parking Guidance/ICS/Intuitive P/A > Clear DTCs(b) Check for DTCs. Body Electrical > Advanced Parking Guidance/ICS/Intuitive P/A > Trouble Codes
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Toyota Avalon (XX50) 2019-2022 Service & Repair Manual > Sfi System: Catalyst System Efficiency Below Threshold Bank 1 (P042000,P043000)
MONITOR DESCRIPTION The ECM uses sensors mounted in front of and behind the Three-Way Catalytic Converter (TWC) to monitor its efficiency. The first sensor, the air fuel ratio sensor, sends pre-catalyst information to the ECM. The second sensor, the heated oxygen sensor, sends post-catalyst informat ...
