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DTC    B2416    Height Control Sensor Malfunction

for Preparation Click here


DESCRIPTION

w/o Intelligent Parking Assist System:
The DTC is stored when the headlight leveling ECU assembly detects malfunctions in the rear height control sensor sub-assembly RH power source or rear height control sensor sub-assembly RH.

DTC No.
DTC Detecting Condition
Trouble Area
B2416
  1. Malfunction in rear height control sensor sub-assembly RH
  2. Open or short in rear height control sensor sub-assembly RH power source circuit
  1. Rear height control sensor sub-assembly RH
  2. Harness or connector
  3. Headlight leveling ECU assembly
w/ Intelligent Parking Assist System:
The DTC is stored when the headlight leveling ECU assembly detects malfunctions in the rear height control sensor sub-assembly RH power source or rear height control sensor sub-assembly RH.

DTC No.
DTC Detecting Condition
Trouble Area
B2416
  1. Malfunction in rear height control sensor sub-assembly RH
  2. Open or short in rear height control sensor sub-assembly RH power source circuit
  1. Intelligent parking assist system
  2. Rear height control sensor sub-assembly RH
  3. Harness or connector
  4. Parking assist ECU
  5. Headlight leveling ECU assembly

WIRING DIAGRAM


E241419E01


INSPECTION PROCEDURE

1.CHECK FOR DTC

  1. Clear the DTCs (Click here).

  1. Check for DTCs (Click here).

    OK:
    DTC B2416 is not output.



NG
Go to step 2
OK

USE SIMULATION METHOD TO CHECK (Click here)  

2.CHECK VEHICLE CONDITION

  1. Check the vehicle condition.
    Result 
    Result
    		Proceed to
    w/o Intelligent Parking Assist System
    		A
    w/ Intelligent Parking Assist System
    		B



B
Go to step 7
A


3.READ VALUE USING INTELLIGENT TESTER

  1. Connect the intelligent tester to the DLC3.

  1. Turn the power switch on (IG).

  1. Turn the intelligent tester on.

  1. Enter the following menus: Body Electrical / HL Auto Leveling / Data List.

  1. Read the display on the intelligent tester.

    HL Auto Leveling 
    Tester Display
    		Measurement Item/Range
    		Normal Condition
    		Diagnostic Note
    Height Sens Pw Supply Val
    		Rear height control sensor power supply value / 0 to 6.25 V
    		Approx. 5.0 V
    		-

    OK:
    Normal conditions listed above are displayed.



NG
Go to step 5
OK


4.INSPECT REAR HEIGHT CONTROL SENSOR SUB-ASSEMBLY RH


    E191590E01

  1. Connect 3 dry cell batteries (1.5 V) in series.

  1. Remove the rear height control sensor sub-assembly RH (Click here).

  1. Connect a positive (+) lead from the battery to terminal 3 (SHB) and a negative (-) lead from the battery to terminal 1 (SHG).

  1. Measure the voltage between terminals 2 (SHRR) and 1 (SHG) while slowly moving the link up and down.

    Standard Voltage:
    Tester Connection
    		Condition
    		Specified Condition
    2 (SHRR) - 1 (SHG)
    		+45° (High)
    		4.05 V
    0° (Normal)
    		2.25 V
    -45° (Low)
    		0.45 V

    Text in Illustration 
    *1
    		Component without harness connected
    (Rear Height Control Sensor Sub-assembly RH)



NG
REPLACE REAR HEIGHT CONTROL SENSOR SUB-ASSEMBLY RH (Click here)
OK

REPLACE HEADLIGHT LEVELING ECU ASSEMBLY (Click here)  

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

  1. Disconnect the A48 headlight leveling ECU assembly connector.

  1. Disconnect the S3 rear height control sensor sub-assembly RH connector.

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

    Standard Resistance:
    Tester Connection
    		Condition
    		Specified Condition
    A48-12 (SBR) - S3-3 (SHB)
    		Always
    		Below 1 Ω
    A48-19 (SHRL) - S3-2 (SHRR)
    		Always
    		Below 1 Ω
    A48-21 (SGR) - S3-1 (SHG)
    		Always
    		Below 1 Ω
    A48-12 (SBR) - Body ground
    		Always
    		10 kΩ or higher
    A48-19 (SHRL) - Body ground
    		Always
    		10 kΩ or higher
    A48-21 (SGR) - Body ground
    		Always
    		10 kΩ or higher



NG
REPAIR OR REPLACE HARNESS OR CONNECTOR
OK


6.INSPECT REAR HEIGHT CONTROL SENSOR SUB-ASSEMBLY RH


    E191590E01

  1. Connect 3 dry cell batteries (1.5 V) in series.

  1. Remove the rear height control sensor sub-assembly RH (Click here).

  1. Connect a positive (+) lead from the battery to terminal 3 (SHB) and a negative (-) lead from the battery to terminal 1 (SHG).

  1. Measure the voltage between terminals 2 (SHRR) and 1 (SHG) while slowly moving the link up and down.

    Standard Voltage:
    Tester Connection
    		Condition
    		Specified Condition
    2 (SHRR) - 1 (SHG)
    		+45° (High)
    		4.05 V
    0° (Normal)
    		2.25 V
    -45° (Low)
    		0.45 V

    Text in Illustration 
    *1
    		Component without harness connected
    (Rear Height Control Sensor Sub-assembly RH)



NG
REPLACE REAR HEIGHT CONTROL SENSOR SUB-ASSEMBLY RH (Click here)
OK

REPLACE HEADLIGHT LEVELING ECU ASSEMBLY (Click here)  

7.CHECK FOR DTC (INTELLIGENT PARKING ASSIST SYSTEM)

  1. Check for DTCs (Click here).

    OK:
    DTC "C1628 Height Control Sensor Circuit Malfunction" is not output.



NG
GO TO INTELLIGENT PARKING ASSIST SYSTEM (Click here)
OK


8.READ VALUE USING INTELLIGENT TESTER

  1. Connect the intelligent tester to the DLC3.

  1. Turn the power switch on (IG).

  1. Turn the intelligent tester on.

  1. Enter the following menus: Body Electrical / HL Auto Leveling / Data List.

  1. Read the display on the intelligent tester.

    HL Auto Leveling 
    Tester Display
    		Measurement Item/Range
    		Normal Condition
    		Diagnostic Note
    Height Sens Pw Supply Val
    		Rear height control sensor power supply value / 0 to 6.25 V
    		Approx. 5.0 V
    		-

    OK:
    Normal conditions listed above are displayed.



NG
Go to step 10
OK


9.REPLACE PARKING ASSIST ECU

  1. Temporarily replace the parking assist ECU with a new or normally functioning one (Click here).

  1. Check for DTCs (Click here).

    OK:
    DTC B2416 is not output.



NG
REPLACE HEADLIGHT LEVELING ECU ASSEMBLY (Click here)
OK

END 

10.CHECK HARNESS AND CONNECTOR (PARKING ASSIST ECU - HEADLIGHT LEVELING ECU ASSEMBLY)

  1. Disconnect the A48 headlight leveling ECU assembly connector.

  1. Disconnect the L152 parking assist ECU connector.

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

    Standard Resistance:
    Tester Connection
    		Condition
    		Specified Condition
    A48-12 (SBR) - L152-27 (HBL+)*1
    		Always
    		Below 1 Ω
    A48-12 (SBR) - L152-30 (HBE+)*2
    		Always
    		Below 1 Ω
    A48-19 (SHRL) - L152-8 (HO1)
    		Always
    		Below 1 Ω
    A48-21 (SGR) - L152-29 (HGND)
    		Always
    		Below 1 Ω
    A48-12 (SBR) - Body ground
    		Always
    		10 kΩ or higher
    A48-19 (SHRL) - Body ground
    		Always
    		10 kΩ or higher
    A48-21 (SGR) - Body ground
    		Always
    		10 kΩ or higher

    1. *1: for LED Type
    2. *2: Except LED Type



NG
REPAIR OR REPLACE HARNESS OR CONNECTOR
OK


11.REPLACE PARKING ASSIST ECU

  1. Temporarily replace the parking assist ECU with a new or normally functioning one (Click here).

  1. Check for DTCs (Click here).

    OK:
    DTC B2416 is not output.



NG
REPLACE HEADLIGHT LEVELING ECU ASSEMBLY (Click here)
OK

END