POWER TILT AND POWER TELESCOPIC STEERING COLUMN SYSTEM, Diagnostic DTC:B2610

DTC Code DTC Name
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 and telescopic ECU and tilts the steering column up and down. The tilt position sensor (hall IC) in the tilt motor detects the tilt angle of the steering column and outputs a signal to the CPU based on that tilt.

A000V85E20

Tech Tips

Limit positions can be confirmed on the screen of the intelligent tester.

DTC Code Detection Item Trouble Area
B2610 Tilt operation stops within the operation range while operating.

  • Harness or connector

  • Tilt position sensor or tilt motor

  • Multiplex tilt and telescopic ECU

WIRING DIAGRAM

A000YIHE03
*a Tilt Motor
*b Tilt Position Sensor
*c to CPU
*d Multiplex Tilt and Telescopic ECU

PROCEDURE


  1. PERFORM ACTIVE TEST USING INTELLIGENT TESTER (TILT UP/DOWN)

    A000YJ4E07
    *1 Up
    *2 Down

    1. Select the Active Test, use the intelligent tester to generate a control command, and then check the tilt up/down operation.

      Tilt & Telescopic:
      Tester Display Test Part Control Range Diagnostic Note
      Tilt Operation Tilt operation Up / Down -
      Result
      Result Proceed to
      Steering wheel does not tilt up/down. A
      Steering wheel tilts up/down. B

    B

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

    A

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

    A000WYRE04
    *1 Rear view of wire harness connector: (to Multiplex Tilt and Telescopic ECU)
    *2 Rear view of wire harness connector: (to Tilt Motor)

    1. Disconnect the L34 multiplex tilt and telescopic ECU connector.

    2. Disconnect the L26 tilt motor connector.

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

      Standard resistance
      Tester Connection Condition Specified Condition
      L34-10 (TIM+) - L26-1 (TIM+) Always Below 1 Ω
      L34-1 (TIM-) - L26-2 (TIM-)
      L34-10 (TIM+) - Body ground Always 10 kΩ or higher
      L34-1 (TIM-) - Body ground

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  3. INSPECT TILT MOTOR

    A000YWNE11
    *1 Component without harness connected: (Tilt Motor Connector)

    1. Apply the 12 V battery voltage to the tilt motor connector. Then check the steering wheel tilt operation.

      OK
      Measurement Condition Specified Condition

      12 V battery positive (+) → Terminal L26-1 (TIM+)

      12 V battery negative (-) → Terminal L26-2 (TIM-)

      		 The steering wheel tilts up.

      12 V battery positive (+) → Terminal L26-2 (TIM-)

      12 V battery negative (-) → Terminal L26-1 (TIM+)

      		 The steering wheel tilts down.

    OK

    REPLACE MULTIPLEX TILT AND TELESCOPIC ECU Click here

    NG

    REPLACE STEERING COLUMN ASSEMBLY (TILT STEERING GEAR ASSEMBLY WITH MOTOR) Click here

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

    A000WK4E04
    *1 Rear view of wire harness connector: (to Multiplex Tilt and Telescopic ECU)
    *2 Rear view of wire harness connector: (to Tilt Motor)

    1. Disconnect the L34 multiplex tilt and telescopic ECU connector.

    2. Disconnect the L26 tilt motor connector.

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

      Standard resistance
      Tester Connection Condition Specified Condition
      L34-6 (VCI) - L26-4 (VCI) Always Below 1 Ω
      L34-7 (TIS) - L26-5 (TIS)
      L34-17 (E1) - L26-6 (E1)
      L34-6 (VCI) - Body ground Always 10 kΩ or higher
      L34-7 (TIS) - Body ground
      L34-17 (E1) - Body ground

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

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


    1. A000XIJE06
      *1 Rear view of wire harness connector: (to Multiplex Tilt and Telescopic ECU)

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

      Standard resistance
      Tester Connection Condition Specified Condition
      L34-11 (GND) - Body ground Always Below 1 Ω

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  6. CHECK MULTIPLEX TILT AND TELESCOPIC ECU (VCI, TIS TERMINAL VOLTAGE)


    1. A000TT8E04
      *1 Rear view of wire harness connector: (to Tilt Motor)

      Reconnect the L34 multiplex tilt and telescopic ECU connector.

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

      Standard voltage
      Tester Connection Switch Condition Specified Condition
      L26-4 (VCI) - L26-6 (E1) Power switch ON (IG) 8 to 16 V
      L26-5 (TIS) - L26-6 (E1)

    NG

    REPLACE MULTIPLEX TILT AND TELESCOPIC ECU Click here

    OK

  7. CHECK TILT POSITION SENSOR


    1. A000ZLJE04
      *1 Component with harness connected: (Multiplex Tilt and Telescopic ECU)

      Reconnect the L26 tilt motor connector.

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

      Standard voltage
      Tester Connection Condition Specified Condition
      L34-7 (TIS) - L34-17 (E1) Steering tilts up or tilts down

      Pulse generation

      HI: 8 to 16 V

      LOW: 0 V

    OK

    REPLACE MULTIPLEX TILT AND TELESCOPIC ECU Click here

    NG

    REPLACE STEERING COLUMN ASSEMBLY (TILT STEERING GEAR ASSEMBLY WITH MOTOR) Click here