DESCRIPTION This circuit consists of the No. 1 clearance warning buzzer and clearance warning ECU assembly. An ECU-excited type buzzer is used. The ECU operates the buzzers using a sound pattern that changes depending on the distance to the obstacle. WIRING DIAGRAM  PROCEDURE
(a) Connect the Techstream to the DLC3. (b) Turn the engine switch on (IG). (c) Turn the Techstream on. (d) Enter the following menus: Body Electrical / Advanced Parking Guidance/ICS/Intuitive P/A / Active Test. (e) Check that the front buzzer operates by performing the Active Test. Body Electrical > Advanced Parking Guidance/ICS/Intuitive P/A > Active Test
OK: The No. 1 clearance warning buzzer sounds.
(a) Disconnect the K34 clearance warning ECU assembly connector. (b) Disconnect the G51 No. 1 clearance warning buzzer connector. (c) Measure the resistance according to the value(s) in the table below. Standard Resistance:
(a) Replace the No. 1 clearance warning buzzer with a new or known good one. Click here
(a) Connect the Techstream to the DLC3. (b) Turn the engine switch on (IG). (c) Turn the Techstream on. (d) Enter the following menus: Body Electrical / Advanced Parking Guidance/ICS/Intuitive P/A / Active Test. (e) Check that the front buzzer operates by performing the Active Test. Body Electrical > Advanced Parking Guidance/ICS/Intuitive P/A > Active Test
OK: The No. 1 clearance warning buzzer sounds.
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Toyota Avalon Service & Repair Manual > Front Power Seat Control System(for Hv Model With Memory): Short in Sensor with Motor Power Supply Circuit (B2658)
DESCRIPTION This DTC is stored when a power seat motor operates (a position control sensor is being supplied with power) and the power supply voltage does not rise to the specified value. DTC No. Detection Item DTC Detection Condition Trouble Area B2658 Short in Sensor with Motor Power Supply Circui ...
