Last Modified: 05-13-2024 |
6.11:8.1.0 |
Doc ID: RM100000001AUMH |
Model Year Start: 2019 |
Model: GR Corolla |
Prod Date Range: [06/2018 - 09/2022] |
Title: LIGHTING (EXT): LIGHTING SYSTEM (for Gasoline Model with AFS): B2410,B2411; Headlight Swivel ECU LH Communication; 2019 - 2022 MY Corolla Corolla Hatchback GR Corolla [06/2018 - 09/2022] |
DTC
|
B2410
|
Headlight Swivel ECU LH Communication
|
DTC
|
B2411
|
Headlight Swivel ECU RH Communication
|
DESCRIPTION
Each headlight ECU sub-assembly and headlight swivel and leveling motor communicate via LIN communication.
The headlight swivel and leveling motor operates according to power supplied and automatic headlight beam level control signals from its respective headlight ECU sub-assembly and sends its operating state to the headlight ECU sub-assembly.
DTC No.
|
Detection Item
|
DTC Detection Condition
|
Trouble Area
|
DTC Output from
|
B2410
|
Headlight Swivel ECU LH Communication
|
Detection condition:
-
The engine switch is on (IG).
|
-
Headlight unit assembly LH
-
Headlight unit assembly RH
-
Harness or connector
-
Headlight ECU sub-assembly LH
-
Headlight ECU sub-assembly RH
|
AFS
|
B2411
|
Headlight Swivel ECU RH Communication
|
Detection condition:
-
The engine switch is on (IG).
|
-
Headlight unit assembly RH
-
Headlight unit assembly LH
-
Harness or connector
-
Headlight ECU sub-assembly RH
-
Headlight ECU sub-assembly LH
|
AFS
|
WIRING DIAGRAM
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
-
When replacing the headlight ECU sub-assembly LH, always replace it with a new one. If a headlight ECU sub-assembly LH which was installed to another vehicle is used, the information stored in it will not match the information from the vehicle and a DTC may be stored.
PROCEDURE
(a) Connect the Techstream to the DLC3.
(b) Turn the engine switch on (IG).
(c) Turn the Techstream on.
(d) Enter the following menus: Body Electrical / AFS / Trouble Codes.
(e) Clear the DTCs.
Body Electrical > AFS > Clear DTCs
NEXT
|
|
|
(a) Connect the Techstream to the DLC3.
(b) Turn the engine switch on (IG).
(c) Wait 10 seconds or more.
(d) Turn the Techstream on.
(e) Enter the following menus: Body Electrical / AFS / Trouble Codes.
(f) Check for DTCs.
Body Electrical > AFS > Trouble Codes
OK:
DTC B2410 and B2411 are not output.
Result
|
Proceed to
|
OK
|
A
|
NG (DTC B2410 is output)
|
B
|
NG (DTC B2411 is output)
|
C
|
NG (DTC B2410 and B2411 are output)
|
D
|
B
|
|
|
3.
|
INSPECT HEADLIGHT ECU SUB-ASSEMBLY LH
|
*a
|
Component without harness connected
(Headlight ECU Sub-assembly LH)
|
-
|
-
|
(a) Remove the headlight ECU sub-assembly LH.
Click here
(b) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
Tester Connection
|
Condition
|
Specified Condition
|
A-19 (LINS) - C-4 (LINSI)
|
Always
|
Below 1 Ω
|
4.
|
CHECK HARNESS AND CONNECTOR (HEADLIGHT UNIT ASSEMBLY LH (HEADLIGHT CORD) - HEADLIGHT UNIT ASSEMBLY RH (HEADLIGHT CORD))
|
(a) Disconnect the A21 headlight unit assembly LH connector.
(b) Disconnect the A20 headlight unit assembly RH connector.
(c) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
Tester Connection
|
Condition
|
Specified Condition
|
A21-8 - A20-8
|
Always
|
Below 1 Ω
|
NG |
|
REPAIR OR REPLACE HARNESS OR CONNECTOR
|
OK
|
|
|
5.
|
INSPECT HEADLIGHT UNIT ASSEMBLY RH (HEADLIGHT CORD)
|
*1
|
Headlight Unit Assembly RH (Headlight Cord)
|
-
|
-
|
*a
|
Component without harness connected
(to Headlight ECU Sub-assembly RH)
|
*b
|
Component without harness connected
(to Wire Harness)
|
(a) Remove the headlight unit assembly RH.
Click here
(b) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
Tester Connection
|
Condition
|
Specified Condition
|
A20-8 - A-19 (LINS)
|
Always
|
Below 1 Ω
|
OK
|
|
|
6.
|
CHECK HEADLIGHT ECU SUB-ASSEMBLY LH (LINS TERMINAL SIGNAL OUTPUT)
|
*a
|
Front view of wire harness connector
(to Headlight ECU Sub-assembly RH)
|
(a) Connect the A21 headlight unit assembly LH connector.
(b) Connect the A20 headlight unit assembly RH connector.
(c) Using a Techstream, check the waveform.
OK:
Tester Connection
|
Condition
|
Specified Condition
|
A-19 (LINS) - Body ground
|
Engine switch on (IG)
|
Pulse generation
|
OK
|
|
|
7.
|
INSPECT HEADLIGHT ECU SUB-ASSEMBLY RH
|
*a
|
Component without harness connected
(Headlight ECU Sub-assembly RH)
|
-
|
-
|
(a) Remove the headlight ECU sub-assembly RH.
Click here
(b) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
Tester Connection
|
Condition
|
Specified Condition
|
A-19 (LINS) - C-4 (LINSI)
|
Always
|
Below 1 Ω
|
8.
|
CHECK HARNESS AND CONNECTOR (HEADLIGHT UNIT ASSEMBLY LH (HEADLIGHT CORD) - HEADLIGHT UNIT ASSEMBLY RH (HEADLIGHT CORD))
|
(a) Disconnect the A21 headlight unit assembly LH connector.
(b) Disconnect the A20 headlight unit assembly RH connector.
(c) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
Tester Connection
|
Condition
|
Specified Condition
|
A21-8 or A20-8 - Body ground
|
Always
|
10 kΩ or higher
|
NG |
|
REPAIR OR REPLACE HARNESS OR CONNECTOR
|
OK
|
|
|
(a) Connect the A21 headlight unit assembly LH connector.
(b) Connect the Techstream to the DLC3.
(c) Turn the engine switch on (IG).
(d) Turn the Techstream on.
(e) Enter the following menus: Body Electrical / AFS / Trouble Codes.
(f) Clear the DTCs.
Body Electrical > AFS > Clear DTCs
NEXT
|
|
|
(a) Connect the Techstream to the DLC3.
(b) Turn the engine switch on (IG).
(c) Wait 10 seconds or more.
(d) Turn the Techstream on.
(e) Enter the following menus: Body Electrical / AFS / Trouble Codes.
(f) Check for DTCs.
Body Electrical > AFS > Trouble Codes
Result
|
Proceed to
|
DTC B2411 is output
|
A
|
DTC B2410 and B2411 are output
|
B
|
A
|
|
|
11.
|
CHECK HEADLIGHT UNIT ASSEMBLY RH
|
(a) Remove the headlight unit assembly RH.
Click here
(b) Connect the A20 headlight unit assembly RH connector.
NEXT
|
|
|
(a) Connect the Techstream to the DLC3.
(b) Turn the engine switch on (IG).
(c) Turn the Techstream on.
(d) Enter the following menus: Body Electrical / AFS / Trouble Codes.
(e) Clear the DTCs.
Body Electrical > AFS > Clear DTCs
NEXT
|
|
|
(a) Connect the Techstream to the DLC3.
(b) Turn the engine switch on (IG).
(c) Wait 10 seconds or more.
(d) Turn the Techstream on.
(e) Enter the following menus: Body Electrical / AFS / Trouble Codes.
(f) Check for DTCs.
Body Electrical > AFS > Trouble Codes
Result
|
Proceed to
|
DTC B2411 is output
|
A
|
DTC B2410 and B2411 are output
|
B
|
A
|
|
|
14.
|
CHECK HEADLIGHT ECU SUB-ASSEMBLY RH
|
(a) Remove the headlight ECU sub-assembly RH.
Click here
(b) Connect the A headlight ECU sub-assembly RH connector.
NEXT
|
|
|
(a) Connect the Techstream to the DLC3.
(b) Turn the engine switch on (IG).
(c) Turn the Techstream on.
(d) Enter the following menus: Body Electrical / AFS / Trouble Codes.
(e) Clear the DTCs.
Body Electrical > AFS > Clear DTCs
NEXT
|
|
|
(a) Connect the Techstream to the DLC3.
(b) Turn the engine switch on (IG).
(c) Wait 10 seconds or more.
(d) Turn the Techstream on.
(e) Enter the following menus: Body Electrical / AFS / Trouble Codes.
(f) Check for DTCs.
Body Electrical > AFS > Trouble Codes
Result
|
Proceed to
|
DTC B2411 is output
|
A
|
DTC B2410 and B2411 are output
|
B
|
17.
|
CHECK HEADLIGHT ECU SUB-ASSEMBLY LH
|
(a) Remove the headlight ECU sub-assembly LH.
Click here
(b) Connect the A headlight ECU sub-assembly LH connector.
(c) Disconnect the A20 headlight unit assembly RH connector.
NEXT
|
|
|
(a) Connect the Techstream to the DLC3.
(b) Turn the engine switch on (IG).
(c) Turn the Techstream on.
(d) Enter the following menus: Body Electrical / AFS / Trouble Codes.
(e) Clear the DTCs.
Body Electrical > AFS > Clear DTCs
NEXT
|
|
|
(a) Connect the Techstream to the DLC3.
(b) Turn the engine switch on (IG).
(c) Wait 10 seconds or more.
(d) Turn the Techstream on.
(e) Enter the following menus: Body Electrical / AFS / Trouble Codes.
(f) Check for DTCs.
Body Electrical > AFS > Trouble Codes
Result
|
Proceed to
|
DTC B2410 is output
|
A
|
DTC B2410 and B2411 are output
|
B
|
|