Toyota Venza manuals

Toyota Venza: Automatic High Beam Mirror (B124A)

Toyota Venza Service Manual / Lighting (ext) / Lighting System / Automatic High Beam Mirror (B124A)

DESCRIPTION

The DTC is stored when the main body ECU (driver side junction block assembly) detects malfunctions in the inner rear view mirror assembly.

DTC No.

DTC Detection Condition

Trouble Area

B124A

Malfunction in inner rear view mirror assembly

Inner rear view mirror assembly

WIRING DIAGRAM


CAUTION / NOTICE / HINT

NOTICE:

First perform the communication function inspections in How to Proceed with Troubleshooting to confirm that there are no CAN communication malfunctions before troubleshooting this symptom.

PROCEDURE

1.

CHECK FOR DTC

(a) Clear the DTCs (See page ).


(b) Check for DTCs (See page ).


OK:

DTC B124A is not output.


OK

USE SIMULATION METHOD TO CHECK


NG

REPLACE INNER REAR VIEW MIRROR ASSEMBLY

Lost Communication with ECM (U0101,U0073,U0126,U0129,U0142,U0182,U1000)
DESCRIPTION The DTCs are stored when the CAN communication system is malfunctioning. DTC No. DTC Detection Condition Trouble Area U0101 L ...

Automatic High Beam System (B124B)
DESCRIPTION The DTC is stored when the main body ECU (driver side junction block assembly) detects malfunctions in the automatic high beam system. DTC No. DTC Detection Condi ...

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