Lexus ES: ANC ECU EEPROM Data Memory Failure (B1AA044)
DESCRIPTION
This DTC is stored when a malfunction occurs in the stereo component equalizer assembly.
DTC No. | Detection Item | DTC Detection Condition | Trouble Area |
B1AA044 | ANC ECU EEPROM Data Memory Failure | Stereo component equalizer assembly malfunction | Stereo component equalizer assembly |
PROCEDURE
(a) Clear the DTCs.
Body Electrical > Active Noise Control > Clear DTCs
NEXT | | |
(a) Check for DTCs.
Body Electrical > Active Noise Control > Trouble Codes
OK:
No DTCs are output.
OK | | USE SIMULATION METHOD TO CHECK |
NG | | REPLACE STEREO COMPONENT EQUALIZER ASSEMBLY |
READ NEXT:
DESCRIPTION This DTC is stored when an UART communication error occurs between the stereo component equalizer assembly and stereo component amplifier assembly. DTC No. Detection Item DTC Detect
DESCRIPTION These DTCs are stored when a malfunction occurs in the No. 1 active noise control microphone system. DTC No. Detection Item DTC Detection Condition Trouble Area B1AA296 Fron
DESCRIPTION These DTCs are stored when a malfunction occurs in the No. 2 active noise control microphone system. DTC No. Detection Item DTC Detection Condition Trouble Area B1AA696 Fron
SEE MORE:
DISPOSAL PROCEDURE 1. DISPOSE OF HOOD SUPPORT ASSEMBLY (a) Secure the hood support assembly horizontally in a vise with the piston rod pulled out. (b) Wearing safety glasses, gradually cut a part within the area (a) shown in the illustration using a metal saw to release the gas. Specification:
INSTALLATION CAUTION / NOTICE / HINT HINT:
Use the same procedure for the RH side and LH side.
The following procedure is for the LH side.
PROCEDURE 1. INSTALL REAR DOOR ILLUMINATION LIGHT (REAR DOOR OUTSIDE HANDLE ASSEMBLY) Click here 2. INSTALL REAR DOOR SERVICE HOLE COVER Click here 3
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