Toyota Avalon Service & Repair Manual: Diagnostic Trouble Code Chart

DIAGNOSTIC TROUBLE CODE CHART

Active Noise Control System

DTC No.	Detection Item	Link
B1AA044	ANC ECU EEPROM Data Memory Failure
B1AA187	UART Communication Between ANC and Audio Amplifier Missing Message
B1AA296	Front Left Microphone Circuit Component Internal Failure
B1AA31C	Front Left Microphone Circuit Circuit Voltage Out of Range
B1AA696	Front Right Microphone Circuit Component Internal Failure
B1AA71C	Front Right Microphone Circuit Circuit Voltage Out of Range
B1AAA96	Rear Center Microphone Circuit Component Internal Failure
B1AAB1C	Rear Center Microphone Circuit Circuit Voltage Out of Range
P033531	Crankshaft Position Sensor "A" No Signal
U010087	Lost Communication With ECM/PCM "A" Missing Message
U012987	Lost Communication With Brake System Control Module Missing Message
U014087	Lost Communication with Body Control Module Missing Message

Toyota Avalon Service & Repair Manual > Front Camera System(for Gasoline Model): Lost Communication with ECM / PCM "A" (U0100,U0101,U0123,U0129,U0142)
DESCRIPTION When a malfunction is detected between various ECUs and sensors, these DTCs are stored. DTC No. Detection Item DTC Detection Condition Trouble Area U0100 Lost Communication with ECM / PCM "A" While the vehicle is being driven at 1 km/h or 1 mph or more, a communication error between the ...

Toyota Avalon Owners Manual