DESCRIPTION This DTC is stored when a malfunction occurs in the stereo component amplifier assembly.
PROCEDURE
(a) Clear the DTCs. Body Electrical > Navigation System > Clear DTCs(b) Recheck for DTCs and check that no DTCs are output. Body Electrical > Navigation System > Trouble CodesOK: No DTCs are output.
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Toyota Avalon Service & Repair Manual > Electronically Controlled Brake System(for Hv Model): ECM Communication Circuit (C1203)
DESCRIPTION DTC No. Detection Item INF Code DTC Detection Condition Trouble Area MIL Note C1203 ECM Communication Circuit 1161 Either of the following is detected: Identification information sent from other ECUs does not match with the value stored when shipped from the factory. Identification infor ...