Lexus ES manuals

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

1.

CLEAR DTC

(a) Clear the DTCs.

Body Electrical > Active Noise Control > Clear DTCs
NEXT

2.

CHECK FOR DTC

(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

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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

 Front Right Microphone Circuit Component Internal Failure (B1AA696,B1AA71C)

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 Inspection

INSPECTION PROCEDURE 1. INSPECT REAR COMBINATION LIGHT LENS AND BODY LH (for TMC Made) *a Component without harness connected (Rear Combination Light Lens and Body LH) (a) Apply auxiliary battery voltage to the rear combination light lens and body LH and check that the lights illuminate. OK

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