Last Modified: 01-30-2024 6.11:8.1.0 Doc ID: RM100000001H3X1
Model Year Start: 2019 Model: RAV4 Prod Date Range: [02/2019 - 12/2021]
Title: LIGHTING (EXT): LIGHTING SYSTEM (w/ AFS): B242C,B242D; Right Headlight ECU Malfunction; 2019 - 2021 MY RAV4 RAV4 HV [02/2019 - 12/2021]

DTC

B242C

Right Headlight ECU Malfunction

DTC

B242D

Left Headlight ECU Malfunction

DESCRIPTION

The headlight ECU sub-assembly LH or headlight ECU sub-assembly RH stores a DTC if it detects an internal malfunction.

DTC No.

Detection Item

DTC Detection Condition

Trouble Area

DTC Output from

Note

B242C

Right Headlight ECU Malfunction

Detection condition:

  • The power switch is on (IG)

Malfunction status:

  • Headlight ECU sub-assembly RH internal malfunction

Malfunction duration:

  • Maximum 15 minutes

Headlight ECU sub-assembly RH

AFS (Sub)

-

B242D

Left Headlight ECU Malfunction

Detection condition:

  • The power switch is on (IG)

Malfunction status:

  • Headlight ECU sub-assembly LH internal malfunction

Malfunction duration:

  • Maximum 15 minutes

Headlight ECU sub-assembly LH

AFS

-

CAUTION / NOTICE / HINT

NOTICE:

If the headlight ECU sub-assembly LH has been replaced, it is necessary to synchronize the vehicle information and initialize the headlight ECU sub-assembly LH.

Click here 2019 - 2021 MY RAV4 RAV4 HV [02/2019 - 12/2021]; LIGHTING (EXT): LIGHTING SYSTEM (w/ AFS): INITIALIZATION

PROCEDURE

1.

CLEAR DTC

(a) Connect the Techstream to the DLC3.

(b) Turn the power switch on (IG).

(c) Turn the Techstream on.

(d) Enter the following menus: Body Electrical / AFS or AFS (Sub) / Clear DTCs.

(e) Clear the DTCs.

Body Electrical > AFS > Clear DTCs

Body Electrical > AFS (Sub) > Clear DTCs

NEXT

2.

CHECK FOR DTC

(a) Connect the Techstream to the DLC3.

(b) Turn the power switch on (IG).

(c) Wait at least 15 minutes.

(d) Turn the Techstream on.

(e) Enter the following menus: Body Electrical / AFS or AFS (Sub) / Trouble Codes.

(f) Check for DTCs.

Body Electrical > AFS > Trouble Codes

Body Electrical > AFS (Sub) > Trouble Codes

OK:

DTC B242C and B242D are not output.

Result

Proceed to

OK

A

NG (DTC B242C is output)

B

NG (DTC B242D is output)

C
A

USE SIMULATION METHOD TO CHECK

B

REPLACE HEADLIGHT ECU SUB-ASSEMBLY RH

C

REPLACE HEADLIGHT ECU SUB-ASSEMBLY LH