B2416

LIGHTING (EXT): AUTOMATIC HEADLIGHT BEAM LEVEL CONTROL SYSTEM: B2416: Height Control Sensor Malfunction
B2416 - Height Control Sensor Malfunction

DESCRIPTION

The DTC is stored when the headlight leveling ECU assembly detects malfunctions in the rear height control sensor sub-assembly power source or rear height control sensor sub-assembly.

WIRING DIAGRAM

INSPECTION PROCEDURE

NOTICE:
If either of the following is performed, initialization of the headlight leveling ECU assembly is necessary Automatic Headlight.

* Replacement of the headlight leveling ECU assembly.
* Replacement or removal/installation of the rear height control sensor sub-assembly or work that changes the vehicle height such as replacement of suspension components.

PROCEDURE

1. CHECK FOR DTC

(a) Clear the DTCs Automatic Headlight.

(b) Check for DTCs Automatic Headlight.

OK:

DTC B2416 is not output.

NG -- READ VALUE USING TECHSTREAM

OK -- USE SIMULATION METHOD TO CHECK How To Proceed With Troubleshooting

2. READ VALUE USING TECHSTREAM

(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 / HL Auto Leveling / Data List.

(e) Read the display on the Techstream.

HL Auto Leveling

OK:

Normal condition listed above is displayed.

NG -- INSPECT REAR HEIGHT CONTROL SENSOR SUB-ASSEMBLY

OK -- REPLACE HEADLIGHT LEVELING ECU ASSEMBLY Removal

3. INSPECT REAR HEIGHT CONTROL SENSOR SUB-ASSEMBLY

(a) Remove the rear height control sensor sub-assembly Removal.

(b) Inspect the rear height control sensor sub-assembly Testing and Inspection.

NG -- REPLACE REAR HEIGHT CONTROL SENSOR SUB-ASSEMBLY Removal
OK -- Continue to next step.

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

(a) Disconnect the A34 headlight leveling ECU assembly connector.

(b) Disconnect the O17 rear height control sensor sub-assembly connector.

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

Standard Resistance:

NG -- REPAIR OR REPLACE HARNESS OR CONNECTOR

OK -- REPLACE HEADLIGHT LEVELING ECU ASSEMBLY Removal