DESCRIPTION These DTCs are stored when a malfunction occurs in the No. 1 active noise control microphone system.
HINT: *: Malfunction monitoring is not performed under the following conditions, in order to prevent erroneous detection.
WIRING DIAGRAM ![]() PROCEDURE
(a) Clear the DTCs. Body Electrical > Active Noise Control > Clear DTCs
(a) Check for DTCs. Body Electrical > Active Noise Control > Trouble CodesOK: DTC B1AA296 and B1AA31C are not output.
(a) Disconnect the G68 stereo component equalizer assembly connector. (b) Disconnect the O13 No. 1 active noise control microphone connector. (c) Measure the resistance according to the value(s) in the table below. Standard Resistance:
(a) Replace the No. 1 active noise control microphone with a new or known good one. Click here
(a) Clear the DTCs. Body Electrical > Active Noise Control > Clear DTCs
(a) Check for DTCs. Body Electrical > Active Noise Control > Trouble CodesOK: DTC B1AA296 and B1AA31C are not output.
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Toyota Avalon Service & Repair Manual > Pre-collision System(for Hv Model): Parts Location
PARTS LOCATION ILLUSTRATION *1 FORWARD RECOGNITION CAMERA *2 MILLIMETER WAVE RADAR SENSOR ASSEMBLY *3 BRAKE BOOSTER WITH MASTER CYLINDER ASSEMBLY - SKID CONTROL ECU - - ILLUSTRATION *1 DRIVING SUPPORT ECU ASSEMBLY *2 COMBINATION METER ASSEMBLY - MULTI-INFORMATION DISPLAY - PCS WARNING LIGHT *3 STEER ...