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 > Spiral Cable: Inspection
INSPECTION PROCEDURE 1. INSPECT SPIRAL CABLE SUB-ASSEMBLY NOTICE: Do not remove the steering sensor from the spiral cable sub-assembly when inspecting the spiral cable sub-assembly. Remove the steering sensor from the spiral cable sub-assembly only when replacing the spiral cable sub-assembly. (a) V ...