LIGHTING (EXT)  AUTOMATIC HEADLIGHT BEAM LEVEL CONTROL SYSTEM  B2416  Height Control Sensor  B241A  Rear Height Control Sensor  


DESCRIPTION

If the headlight leveling ECU assembly detects a malfunction in the rear height control sensor sub-assembly power source circuit or rear height control sensor sub-assembly circuit if will store DTC B2416 and/or B241A.

DTC No. Detection Item DTC Detection Condition Trouble Area
B2416 Height Control Sensor
·

Malfunction in rear height control sensor sub-assembly

·

Open or short in rear height control sensor sub-assembly power source circuit


·

Rear height control sensor sub-assembly

·

Headlight leveling ECU assembly

·

Harness or connector


B241A Rear Height Control Sensor
·

Malfunction in rear height control sensor sub-assembly

·

Open or short in rear height control sensor sub-assembly circuit


·

Rear height control sensor sub-assembly

·

Headlight leveling ECU assembly

·

Harness or connector



WIRING DIAGRAM

E234217E81
4.354,1.469 4.719,1.625 0.365,0.156 10 false SBR 4.344,0.958 4.771,1.146 0.427,0.188 10 false SHRL 4.354,0.448 4.729,0.604 0.375,0.156 10 false SGR 4.115,1.354 4.417,1.563 0.302,0.208 10 false 12 4.104,0.854 4.49,1.115 0.385,0.26 10 false 19 4.115,0.344 4.5,0.625 0.385,0.281 10 false 21 2.833,1.354 2.99,1.5 0.156,0.146 10 false 3 2.844,0.854 3,1 0.156,0.146 10 false 2 2.833,0.344 2.99,0.49 0.156,0.146 10 false 1 0.552,1.979 3.5,2.24 2.948,0.26 10 false Rear Height Control Sensor Sub-assembly 0.563,1.823 1.385,2.115 0.823,0.292 10 false L63 4.115,1.979 6.646,2.208 2.531,0.229 10 false Headlight Leveling ECU Assembly 4.115,1.823 4.792,2.042 0.677,0.219 10 false A60 2.427,1.458 2.885,1.656 0.458,0.198 10 false SHB 2.333,0.958 2.792,1.156 0.458,0.198 10 false SHRR 2.417,0.458 2.875,0.656 0.458,0.198 10 false SHG

CAUTION / NOTICE / HINT

NOTICE:
·

If the headlight leveling ECU assembly has been replaced, it is necessary to initialize the headlight leveling ECU assembly.

Click hereVehicle Exterior>LIGHTING (EXT)>AUTOMATIC HEADLIGHT BEAM LEVEL CONTROL SYSTEM>INITIALIZATION

·

If any of the following are performed, it is necessary to initialize the headlight leveling ECU assembly.

Click hereVehicle Exterior>LIGHTING (EXT)>AUTOMATIC HEADLIGHT BEAM LEVEL CONTROL SYSTEM>INITIALIZATION

·

Replacement of the rear height control sensor sub-assembly

·

Removal/installation of the rear height control sensor sub-assembly

·

Work that changes the vehicle height such as replacement of suspension components




PROCEDURE

1.CLEAR DTC
a.

Connect the GTS to the DLC3.


b.

Turn the ignition switch to ON.


c.

Turn the GTS on.


d.

Enter the following menus: Body Electrical / HL AutoLeveling / Trouble Codes.


e.

Clear the DTCs.

Body Electrical > HL AutoLeveling > Clear DTCs
50002 361

Result:
Proceed to
NEXT



NEXT

2.CHECK FOR DTC
2.CHECK FOR DTC
a.

Connect the GTS to the DLC3.


b.

Turn the ignition switch to ON.


c.

Turn the GTS on.


d.

Enter the following menus: Body Electrical / HL AutoLeveling / Trouble Codes.


e.

Check for DTCs.

Body Electrical > HL AutoLeveling > Trouble Codes
50001 361
OK:

DTC B2416 and B241A are not output.



Result:
Proceed to
OK
NG



OK

USE SIMULATION METHOD TO CHECK

Click hereGeneral>INTRODUCTION>HOW TO TROUBLESHOOT ECU CONTROLLED SYSTEMS>HOW TO PROCEED WITH TROUBLESHOOTING


NG

3.READ VALUE USING GTS
3.READ VALUE USING GTS
a.

Connect the GTS to the DLC3.


b.

Turn the ignition switch to ON.


c.

Turn the GTS on.


d.

Enter the following menus: Body Electrical / HL AutoLeveling / Data List.


e.

Read the Data List according to the display on the GTS.

Body Electrical > HL AutoLeveling > Data List
Tester Display Measurement Item Range Normal Condition Diagnostic Note
Height Sens Pw Supply Val Rear height control sensor sub-assembly power supply value 0.00 to 5.00 V 4.61 to 5.00 V -
Rr Height Sens Signal Val Rear height control sensor sub-assembly signal value 0.00 to 5.00 V 0.50 to 4.50 V Value changes according to vehicle height
Body Electrical > HL AutoLeveling > Data List
Tester Display
Height Sens Pw Supply Val
Rr Height Sens Signal Val
50003 361 6,7
OK:

Normal condition listed above is displayed.



Result:
Proceed to
OK
NG



OK

REPLACE HEADLIGHT LEVELING ECU ASSEMBLY

Click hereVehicle Exterior>LIGHTING (EXT)>HEADLIGHT LEVELING ECU>REMOVAL


NG

4.CHECK HARNESS AND CONNECTOR (REAR HEIGHT CONTROL SENSOR SUB-ASSEMBLY - HEADLIGHT LEVELING ECU ASSEMBLY)
4.CHECK HARNESS AND CONNECTOR (REAR HEIGHT CONTROL SENSOR SUB-ASSEMBLY - HEADLIGHT LEVELING ECU ASSEMBLY)
a.

Disconnect the L63 rear height control sensor sub-assembly connector.


b.

Disconnect the A60 headlight leveling ECU assembly connector.


c.

Measure the resistance according to the value(s) in the table below.

Standard Resistance:
Tester Connection Condition Specified Condition
L63-1 (SHG) - A60-21 (SGR) Always Below 1 Ω
L63-2 (SHRR) - A60-19 (SHRL) Always Below 1 Ω
L63-3 (SHB) - A60-12 (SBR) Always Below 1 Ω
L63-1 (SHG) or A60-21 (SGR) - Body ground Always 10 kΩ or higher
L63-2 (SHRR) or A60-19 (SHRL) - Body ground Always 10 kΩ or higher
L63-3 (SHB) or A60-12 (SBR) - Body ground Always 10 kΩ or higher



Result:
Proceed to
OK
NG



OK

5.INSPECT REAR HEIGHT CONTROL SENSOR SUB-ASSEMBLY

NG

REPAIR OR REPLACE HARNESS OR CONNECTOR

5.INSPECT REAR HEIGHT CONTROL SENSOR SUB-ASSEMBLY
a.

Remove the rear height control sensor sub-assembly.

Click hereVehicle Exterior>LIGHTING (EXT)>HEIGHT CONTROL SENSOR>REMOVAL


b.

Inspect the rear height control sensor sub-assembly.

Click hereVehicle Exterior>LIGHTING (EXT)>HEIGHT CONTROL SENSOR>INSPECTION


Result:
Proceed to
OK
NG



OK

REPLACE HEADLIGHT LEVELING ECU ASSEMBLY

Click hereVehicle Exterior>LIGHTING (EXT)>HEADLIGHT LEVELING ECU>REMOVAL


NG

REPLACE REAR HEIGHT CONTROL SENSOR SUB-ASSEMBLY

Click hereVehicle Exterior>LIGHTING (EXT)>HEIGHT CONTROL SENSOR>REMOVAL