Last Modified: 11-20-2023 |
6.11:8.1.0 |
Doc ID: RM100000001KY8B |
Model Year Start: 2020 |
Model: Camry HV |
Prod Date Range: [09/2019 -
] |
Title: LIGHTING (EXT): LIGHTING SYSTEM (w/ AFS): B2452; Abnormal Height Sensor Data at Initialization; 2020 - 2024 MY Camry HV [09/2019 - ] |
DTC
|
B2452
|
Abnormal Height Sensor Data at Initialization
|
DESCRIPTION
The headlight ECU sub-assembly LH stores this DTC if the value from the rear height control sensor sub-assembly LH is out of range when performing initialization of the headlight ECU sub-assembly LH, such as when the vehicle is not level or jacked up.
DTC No.
|
Detection Item
|
DTC Detection Condition
|
Trouble Area
|
DTC Output from
|
B2452
|
Abnormal Height Sensor Data at Initialization
|
Detection condition:
-
The power switch is on (IG).
Malfunction status:
-
Abnormal rear height control sensor sub-assembly LH value detected during initialization
|
-
Vehicle condition when initializing
-
Rear height control sensor sub-assembly LH
-
Harness or connector
-
Headlight ECU sub-assembly LH
|
AFS
|
WIRING DIAGRAM
CAUTION / NOTICE / HINT
PROCEDURE
1.
|
INITIALIZATION HEADLIGHT ECU SUB-ASSEMBLY LH
|
(a) Perform initialization of the headlight ECU sub-assembly LH.
Click here
NEXT
|
|
|
(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 / Trouble Codes.
(e) Clear the DTCs.
Body Electrical > AFS > Clear DTCs
NEXT
|
|
|
(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 / Trouble Codes.
(e) Check for DTCs.
Body Electrical > AFS > Trouble Codes
OK:
DTC B2452 is not output.
OK |
|
END (INITIALIZATION WAS NOT COMPLETED)
|
NG
|
|
|
4.
|
CHECK REAR HEIGHT CONTROL SENSOR SUB-ASSEMBLY LH
|
(a) Check the installation condition of the rear height control sensor sub-assembly LH.
OK:
Rear height control sensor sub-assembly LH is installed correctly.
OK
|
|
|
5.
|
INSPECT REAR HEIGHT CONTROL SENSOR SUB-ASSEMBLY LH
|
(a) Remove the rear height control sensor sub-assembly LH.
Click here
(b) Inspect the rear height control sensor sub-assembly LH.
Click here
OK
|
|
|
6.
|
CHECK HARNESS AND CONNECTOR (REAR HEIGHT CONTROL SENSOR SUB-ASSEMBLY LH - HEADLIGHT ECU SUB-ASSEMBLY LH)
|
(a) Disconnect the A79 headlight ECU sub-assembly LH connector.
(b) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
Tester Connection
|
Condition
|
Specified Condition
|
U1-3 (SHB) - A79-16 (SBR)
|
Always
|
Below 1 Ω
|
U1-2 (SHRR) - A79-17 (SHRL)
|
Always
|
Below 1 Ω
|
U1-1 (SHG) - A79-15 (SGR)
|
Always
|
Below 1 Ω
|
U1-3 (SHB) or A79-16 (SBR) - Body ground
|
Always
|
10 kΩ or higher
|
U1-2 (SHRR) or A79-17 (SHRL) - Body ground
|
Always
|
10 kΩ or higher
|
NG |
|
REPAIR OR REPLACE HARNESS OR CONNECTOR
|
|