Dtc B2416 Height Control Sensor Malfunction


DESCRIPTION

WIRING DIAGRAM

INSPECTION PROCEDURE

CHECK FOR DTC

CHECK VEHICLE EQUIPMENT

READ VALUE USING INTELLIGENT TESTER (REAR HEIGHT CONTROL SENSOR)

CHECK HARNESS AND CONNECTOR (HEADLIGHT SWIVEL ECU ASSEMBLY - REAR HEIGHT CONTROL SENSOR SUB-ASSEMBLY)

INSPECT REAR HEIGHT CONTROL SENSOR SUB-ASSEMBLY

CHECK FOR DTC (AIR SUSPENSION SYSTEM)

READ VALUE USING INTELLIGENT TESTER (AFS)

CHECK HARNESS AND CONNECTOR (HEADLIGHT SWIVEL ECU ASSEMBLY - SUSPENSION CONTROL ECU)

CHECK SUSPENSION CONTROL ECU (OPERATION)

DTC B2416 Height Control Sensor Malfunction

DTC B241A Rear Height Control Sensor


DESCRIPTION

w/o Air Suspension System:
The DTC is stored when the headlight swivel ECU detects malfunctions in the rear height control sensor power source or rear height control sensor.

DTC Code
DTC Detection Condition
Trouble Area
B2416
  1. Malfunction in the rear height control sensor.
  2. Open or short in the rear height control sensor circuit.
  1. Rear height control sensor sub-assembly
  2. Headlight swivel ECU assembly
  3. Harness or connector
B241A
  1. Malfunction in the rear height control sensor.
  2. Open or short in the rear height control sensor circuit.
  1. Rear height control sensor sub-assembly
  2. Headlight swivel ECU assembly
  3. Harness or connector
w/ Air Suspension System:
The DTC is stored when the headlight swivel ECU detects malfunctions in the suspension control ECU.

DTC Code
DTC Detection Condition
Trouble Area
B2416
  1. Malfunction in the suspension control ECU.
  2. Open or short in the suspension control ECU circuit.
  1. Air suspension system
  2. Suspension control ECU
  3. Headlight swivel ECU assembly
  4. Harness or connector
B241A
  1. Malfunction in the suspension control ECU.
  2. Open or short in the suspension control ECU circuit.
  1. Air suspension system
  2. Suspension control ECU
  3. Headlight swivel ECU assembly
  4. Harness or connector

WIRING DIAGRAM


Land Cruiser, Land Cruiser Prado. Grj150 Trj150,155 Kdj150,155 Lj150, Gdj150,155.Lighting (Ext).Lighting System. Dtc B2416 Height Control Sensor Malfunction


Land Cruiser, Land Cruiser Prado. Grj150 Trj150,155 Kdj150,155 Lj150, Gdj150,155.Lighting (Ext).Lighting System. Dtc B2416 Height Control Sensor Malfunction


INSPECTION PROCEDURE

1.CHECK FOR DTC

  1. Clear the DTCs (LandCruiser RM000000PKT0AFX.html).

  1. Check for DTCs (LandCruiser RM000000PKT0AFX.html).

    OK:
    DTC B2416 or B241A output does not occur.


NG
Go to step 2
OK

USE SIMULATION METHOD TO CHECK (LandCruiser RM000003YMI00MX.html)

2.CHECK VEHICLE EQUIPMENT

  1. Check the vehicle equipment.

    Result
    Result
    		Proceed to
    w/o Air Suspension System
    		A
    w/ Air Suspension System
    		B


B
Go to step 6
A


3.READ VALUE USING INTELLIGENT TESTER (REAR HEIGHT CONTROL SENSOR)

  1. Using the intelligent tester, read the Data List (LandCruiser RM000000PKV0J6X.html).

    AFS
    Tester Display
    		Measurement Item/Range
    		Normal Condition
    		Diagnostic Note
    Height Sens Pw Supply Val
    		Height control sensor power supply value / 0 to 6.25 V
    		Approximately 5 V
    		-
    Rr Height Sens Signal Val
    		Rear height control sensor signal value / 0 to 5 V
    		0.5 to 4.5 V
    		The value changes according to the vehicle height.
    OK:
    Normal conditions listed above are displayed.


NG
Go to step 4
OK

REPLACE HEADLIGHT SWIVEL ECU ASSEMBLY (LandCruiser RM0000038VH021X.html)

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

  1. Disconnect the A58 headlight swivel ECU connector.

  1. Disconnect the S3 rear height control sensor connector.

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

    Standard Resistance:
    Tester Connection
    		Condition
    		Specified Condition
    A58-18 (SBF) - S3-1 (SHB)
    		Always
    		Below 1 Ω
    A58-19 (SHRL) - S3-2 (SHRR)
    		Always
    		Below 1 Ω
    A58-21 (SGF) - S3-3 (SHG)
    		Always
    		Below 1 Ω
    A58-18 (SBF) - Body ground
    		Always
    		10 kΩ or higher
    A58-19 (SHRL) - Body ground
    		Always
    		10 kΩ or higher
    A58-21 (SGF) - Body ground
    		Always
    		10 kΩ or higher


NG
REPAIR OR REPLACE HARNESS OR CONNECTOR
OK


5.INSPECT REAR HEIGHT CONTROL SENSOR SUB-ASSEMBLY


  1. Remove the rear height control sensor (LandCruiser RM000003QK100YX.html).


    Land Cruiser, Land Cruiser Prado. Grj150 Trj150,155 Kdj150,155 Lj150, Gdj150,155.Lighting (Ext).Lighting System. Dtc B2416 Height Control Sensor Malfunction


    Text in Illustration
    *a
    		Min. Low
    		*b
    		Normal
    *c
    		Max. High
    		-
    		-
    Land Cruiser, Land Cruiser Prado. Grj150 Trj150,155 Kdj150,155 Lj150, Gdj150,155
    		45°
    		Land Cruiser, Land Cruiser Prado. Grj150 Trj150,155 Kdj150,155 Lj150, Gdj150,155
    		45°

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

  1. Connect the positive (+) end of the batteries to terminal 1 (SHB) of the height control sensor and the negative (-) end of the batteries to terminal 3 (SHG). While slowly moving the sensor link up and down, measure the voltage between terminal 2 (SHRR) and terminal 3 (SHG).

    Standard Voltage:
    Tester Connection
    		Condition
    		Specified Condition
    3 (SHG) - 2 (SHRR)
    		Max. high (45°)
    		4.4 to 4.6 V
    Normal (0°)
    		2.3 to 2.6 V
    Min. low (-45°)
    		0.4 to 0.6 V
    NOTICE:
    Do not apply a voltage of 5 V or higher.


NG
REPLACE REAR HEIGHT CONTROL SENSOR SUB-ASSEMBLY (LandCruiser RM000003QK100YX.html)
OK

REPLACE HEADLIGHT SWIVEL ECU ASSEMBLY (LandCruiser RM0000038VH021X.html)

6.CHECK FOR DTC (AIR SUSPENSION SYSTEM)

  1. Check for DTCs (LandCruiser RM000001G7P02NX.html).

    OK:
    DTC "C1712 Front Height Control Sensor LH Circuit Malfunction" and "C1714 Rear Height Control Sensor LH Circuit Malfunction" are not output.


NG
GO TO AIR SUSPENSION SYSTEM (LandCruiser RM000002Q4X026X.html)
OK


7.READ VALUE USING INTELLIGENT TESTER (AFS)

  1. Using the intelligent tester, read the Data List (LandCruiser RM000000PKV0J6X.html).

    AFS
    Tester Display
    		Measurement Item/Range
    		Normal Condition
    		Diagnostic Note
    Height Sens Pw Supply Val
    		Height control sensor power supply value / 0 to 6.25 V
    		Approximately 5 V
    		-
    Rr Height Sens Signal Val
    		Rear height control sensor signal value / 0 to 5 V
    		0.5 to 4.5 V
    		The value changes according to the vehicle height.
    OK:
    Normal conditions listed above are displayed.


NG
Go to step 8
OK

REPLACE HEADLIGHT SWIVEL ECU ASSEMBLY (LandCruiser RM0000038VH021X.html)

8.CHECK HARNESS AND CONNECTOR (HEADLIGHT SWIVEL ECU ASSEMBLY - SUSPENSION CONTROL ECU)

  1. Disconnect the A58 headlight swivel ECU connector.

  1. Disconnect the A14 and R19 suspension control ECU connectors.

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

    Standard Resistance:
    Tester Connection
    		Condition
    		Specified Condition
    A58-18 (SBF) - A14-22 (SBL)
    		Always
    		Below 1 Ω
    A58-19 (SHRL) - R19-27 (SHR2)
    		Always
    		Below 1 Ω
    A58-21 (SGF) - A14-21 (SGL)
    		Always
    		Below 1 Ω
    A58-18 (SBF) - Body ground
    		Always
    		10 kΩ or higher
    A58-19 (SHRL) - Body ground
    		Always
    		10 kΩ or higher
    A58-21 (SGF) - Body ground
    		Always
    		10 kΩ or higher


NG
REPAIR OR REPLACE HARNESS OR CONNECTOR
OK


9.CHECK SUSPENSION CONTROL ECU (OPERATION)

  1. Temporarily replace the suspension control ECU with a new or normally functioning one (LandCruiser RM000002BGR01UX.html).

  1. Check for DTCs (LandCruiser RM000000PKT0AFX.html).

    OK:
    DTC B2416 or B241A output does not occur.


NG
REPLACE HEADLIGHT SWIVEL ECU ASSEMBLY (LandCruiser RM0000038VH021X.html)
OK

END (REPLACE SUSPENSION CONTROL ECU) (LandCruiser RM000002BGR01UX.html)