Dtc B2610 Tilt Position Sensor Or Tilt Motor Circuit Malfunction

Steering. Lexus Gs430, Gs300. Uzs190 Grs190
Steering Column. Lexus Gs430, Gs300. Uzs190 Grs190

DESCRIPTION

WIRING DIAGRAM

INSPECTION PROCEDURE

PERFORM ACTIVE TEST BY INTELLIGENT TESTER

CHECK HARNESS AND CONNECTOR (MULTIPLEX TILT & TELESCOPIC ECU - TILT MOTOR)

INSPECT TILT MOTOR

CHECK HARNESS AND CONNECTOR (MULTIPLEX TILT & TELESCOPIC ECU - TILT POSITION SENSOR)

CHECK HARNESS AND CONNECTOR (MULTIPLEX TILT & TELESCOPIC ECU - BODY GROUND)

INSPECT MULTIPLEX TILT & TELESCOPIC ECU (VCI, TIS TERMINAL VOLTAGE)

INSPECT TILT POSITION SENSOR

DTC B2610 Tilt Position Sensor or Tilt Motor Circuit Malfunction


DESCRIPTION

The tilt motor is operated by the power source voltage supplied from the multiplex tilt & telescopic ECU and makes the steering column tilt up and down. The tilt position sensor (hole IC) in the tilt motor detects the tilt angle of the steering column and outputs a signal to the CPU based on that tilt.
Lexus Gs430, Gs300. Uzs190 Grs190.Steering Column.Steering System. Dtc B2610 Tilt Position Sensor Or Tilt Motor Circuit Malfunction
HINT:
Limit positions can be confirmed on the screen of the intelligent tester.

DTC No.
Detection Item
Trouble Area
B2610
Tilt operation stops within the operation range while operating.
  1. Wire harness or connector
  2. Tilt position sensor or tilt motor
  3. Multiplex tilt & telescopic ECU

WIRING DIAGRAM


Lexus Gs430, Gs300. Uzs190 Grs190.Steering Column.Steering System. Dtc B2610 Tilt Position Sensor Or Tilt Motor Circuit Malfunction


INSPECTION PROCEDURE

1.PERFORM ACTIVE TEST BY INTELLIGENT TESTER


    Lexus Gs430, Gs300. Uzs190 Grs190.Steering Column.Steering System. Dtc B2610 Tilt Position Sensor Or Tilt Motor Circuit Malfunction

  1. Connect the intelligent tester to the DLC3.

  1. Turn the engine switch on (IG) and turn the intelligent tester on.

  1. Select "Tilt & Telescopic".

  1. Select "Tilt", and perform the active test using the intelligent tester.

  1. Check that the steering wheel tilts up (down) when the Active Test is carried out.

    OK:
    Steering wheel moves up (down).


OK
Go to step 4
NG


2.CHECK HARNESS AND CONNECTOR (MULTIPLEX TILT & TELESCOPIC ECU - TILT MOTOR)


    Lexus Gs430, Gs300. Uzs190 Grs190.Steering Column.Steering System. Dtc B2610 Tilt Position Sensor Or Tilt Motor Circuit Malfunction

  1. Disconnect the L27 connector from the multiplex tilt & telescopic ECU.

  1. Disconnect the L18 connector from the tilt motor.

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

    Resistance:
    Tester connection
    (Terminal No.)
    		Condition
    		Specified value
    TIM+ (L27-10) - TIM+ (L18-1)
    		Always
    		Below 1 Ω
    TIM- (L27-1) - TIM- (L18-2)
    		Always
    		Below 1 Ω
    TIM+ (L27-10) - Body ground
    		Always
    		10 kΩ or higher
    TIM- (L27-1) - Body ground
    		Always
    		10 kΩ or higher


NG
REPAIR OR REPLACE HARNESS OR CONNECTOR
OK


3.INSPECT TILT MOTOR


    Lexus Gs430, Gs300. Uzs190 Grs190.Steering Column.Steering System. Dtc B2610 Tilt Position Sensor Or Tilt Motor Circuit Malfunction

  1. Connect the positive battery terminal to terminal TIM+ and the negative battery terminal to terminal TIM- of the tilt motor connector. Then confirm that the steering wheel tilts up.

    OK:
    Steering wheel moves up.

  1. Connect the negative battery terminal to terminal TIM+ and the positive battery terminal to terminal TIM- of the tilt motor connector. Then confirm that the steering wheel tilts down.

    OK:
    Steering wheel moves down.
    NOTICE:
    3UZ-FE:
    If replacing the steering column assembly, perform VGRS actuator angle initialization and VGRS actuator angle neutral calibration after wheel alignment adjustment (Click here for INITIALIZATION, Click here for CALIBRATION).


NG
REPLACE STEERING COLUMN ASSEMBLY
OK

REPLACE MULTIPLEX TILT & TELESCOPIC ECU

4.CHECK HARNESS AND CONNECTOR (MULTIPLEX TILT & TELESCOPIC ECU - TILT POSITION SENSOR)


    Lexus Gs430, Gs300. Uzs190 Grs190.Steering Column.Steering System. Dtc B2610 Tilt Position Sensor Or Tilt Motor Circuit Malfunction

  1. Disconnect the L27 connector from the multiplex tilt & telescopic ECU.

  1. Disconnect the L18 connector from the tilt motor.

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

    Resistance:
    Tester connection
    (Terminal No.)
    		Condition
    		Specified value
    VCI (L27-6) - VCI (L18-4)
    		Always
    		Below 1 Ω
    TIS (L27-7) - TIS (L18-5)
    		Always
    		Below 1 Ω
    E1 (L27-17) - E1 (L18-6)
    		Always
    		Below 1 Ω
    VCI (L27-6) - Body ground
    		Always
    		10 kΩ or higher
    TIS (L27-7) - Body ground
    		Always
    		10 kΩ or higher
    E1 (L27-17) - Body ground
    		Always
    		10 kΩ or higher


NG
REPAIR OR REPLACE HARNESS OR CONNECTOR
OK


5.CHECK HARNESS AND CONNECTOR (MULTIPLEX TILT & TELESCOPIC ECU - BODY GROUND)


    Lexus Gs430, Gs300. Uzs190 Grs190.Steering Column.Steering System. Dtc B2610 Tilt Position Sensor Or Tilt Motor Circuit Malfunction

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

    Resistance:
    Tester connection
    (Terminal No.)
    		Condition
    		Specified value
    GND (L27-11) - Body ground
    		Always
    		Below 1 Ω


NG
REPAIR OR REPLACE HARNESS OR CONNECTOR
OK


6.INSPECT MULTIPLEX TILT & TELESCOPIC ECU (VCI, TIS TERMINAL VOLTAGE)


    Lexus Gs430, Gs300. Uzs190 Grs190.Steering Column.Steering System. Dtc B2610 Tilt Position Sensor Or Tilt Motor Circuit Malfunction

  1. Reconnect the L27 connector to the multiplex tilt & telescopic ECU.

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

    Voltage:
    Tester connection
    (Terminal No.)
    		Condition
    		Specified value
    VCI (L18-4) - E1 (L18-6)
    		Engine switch on (IG)
    		8 to 16 V
    TIS (L18-5) - E1 (L18-6)
    		Engine switch on (IG)
    		8 to 16 V


NG
REPLACE MULTIPLEX TILT & TELESCOPIC ECU
OK


7.INSPECT TILT POSITION SENSOR


    Lexus Gs430, Gs300. Uzs190 Grs190.Steering Column.Steering System. Dtc B2610 Tilt Position Sensor Or Tilt Motor Circuit Malfunction

  1. Reconnect the L18 connector to the tilt motor.

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

    Voltage:
    Tester connection
    (Terminal No.)
    		Condition
    		Specified value
    TIS (L27-7) - E1 (L27-17)
    		Steering tilts up or tilts down
    		8 to 16 V (Pulse HI)
    0 V (Pulse LOW)
    NOTICE:
    3UZ-FE:
    If replacing the steering column assembly, perform VGRS actuator angle initialization and VGRS actuator angle neutral calibration after wheel alignment adjustment (Click here for INITIALIZATION, Click here for CALIBRATION).


NG
REPLACE STEERING COLUMN ASSEMBLY
OK

REPLACE MULTIPLEX TILT & TELESCOPIC ECU