LIGHTING SYSTEM, Diagnostic DTC:B2452

DTC Code	DTC Name
B2452	Height Control Sensor Data Out of Range When Initializing

DESCRIPTION

The Headlight leveling ECU assembly stores this DTC if the sensor value received from the height control sensor is out of range when performing initialization of the Headlight leveling ECU assembly; for example, the vehicle is not level or is being jacked up.

DTC No.	DTC Detection Condition	Trouble Area
B2452	The sensor value received from the height control sensor is out of range when performing initialization.	Rear height control sensor sub-assembly RH Headlight leveling ECU assembly

CAUTION / NOTICE / HINT

Note

Initialization is necessary when the headlight leveling ECU assembly or rear height control sensor sub-assembly RH is replaced Click here.

PROCEDURE

CHECK REAR HEIGHT CONTROL SENSOR SUB-ASSEMBLY RH
1. Check that the rear height control sensor sub-assembly RH is installed properly, and that there is no deformation or damage.
  
  OK
  
  Normal installation and no deformation or damage.
NG
REPAIR OR REPLACE REAR HEIGHT CONTROL SENSOR SUB-ASSEMBLY RH

OK
INSPECT REAR HEIGHT CONTROL SENSOR SUB-ASSEMBLY RH
1. Remove the rear height control sensor sub-assembly RH Click here.
2. Inspect the rear height control sensor sub-assembly RH Click here.
NG
REPLACE REAR HEIGHT CONTROL SENSOR SUB-ASSEMBLY RH Click here

OK
PERFORM INITIALIZATION
1. Perform initialization of the headlight leveling ECU assembly Click here.
  Tech Tips
  - Before initializing, make sure that the vehicle condition is proper for initialization.
  - Be sure to perform the initialization as instructed.
NEXT
CHECK FOR DTC
1. Check for DTCs Click here.
  
  OK
  
  DTC B2452 output does not occur.
  
  Tech Tips
  
  If the Headlight leveling ECU assembly stores DTC B2452 even though the ECU has been initialized as instructed, there may be a malfunction in the Headlight leveling ECU assembly.
OK
END

NG
REPLACE HEADLIGHT LEVELING ECU ASSEMBLY Click here