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 sends a signal to the multiplex tilt and telescopic ECU based on that angle.

A01EWENE05

Tech Tips

Limit positions can be confirmed on the intelligent tester.

DTC No. Detection Item Trouble Area
B2610 Tilt operation stops within the operation range while operating.

  • Tilt position sensor or tilt motor

  • Harness or connector

  • Multiplex tilt and telescopic ECU

WIRING DIAGRAM

A01EXIZE02

INSPECTION PROCEDURE

Note

If the electric power steering column sub-assembly has been replaced with a new one, perform torque sensor zero point calibration after performing the initialization of the torque sensor zero point value Click here.

Tech Tips


  • Inspect the fuses for circuits related to this system before performing the following inspection procedure.

  • The wire harness between the multiplex tilt and telescopic ECU and tilt motor is provided with the electric power steering column sub-assembly.

PROCEDURE


  1. PERFORM ACTIVE TEST USING INTELLIGENT TESTER (TILT OPERATION)


    1. A01ESUNE03
      Text in Illustration
      *a Up
      *b Down

      Turn the engine switch off.

    2. Connect the intelligent tester to the DLC3.

    3. Turn the engine switch on (IG).

    4. Turn the intelligent tester on.

    5. Check that the steering wheel tilts up and down. Enter the following menus: Body / Tilt & Telescopic / Active Test.

      Tilt & Telescopic
      Tester Display Test Part Control Range Diagnostic Note
      Tilt Operation Tilt operation UP/DOWN -
      OK
      The steering wheel tilts up and down.

    NG

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

    OK

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


    1. A01EXR7E13
      Text in Illustration
      *a

      Front view of wire harness connector

      (to Multiplex Tilt and Telescopic ECU)

      Disconnect the I15 multiplex tilt and telescopic ECU connector.

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

      Standard Voltage
      Tester Connection Condition Specified Condition
      I15-2 (+B) - Body ground Always 11 to 14 V

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

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


    1. A01EXR7E14
      Text in Illustration
      *a

      Front view of wire harness connector

      (to Multiplex Tilt and Telescopic ECU)

      Disconnect the I15 multiplex tilt and telescopic ECU connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      I15-1 (GND) - Body ground Always Below 1 Ω
      I15-8 (GND2) - Body ground Always Below 1 Ω

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

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


    1. Disconnect the I15 multiplex tilt and telescopic ECU connector.

    2. Disconnect the I23 tilt motor connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      I15-7 (TIM+) - I23-2 (TIM+) Always Below 1 Ω
      I15-20 (TIM-) - I23-1 (TIM-)
      I15-7 (TIM+) - Body ground 10 kΩ or higher
      I15-20 (TIM-) - Body ground

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  5. CHECK TILT MOTOR


    1. A01EYC9E08
      Text in Illustration
      *a

      Component without harness connected

      (Tilt Motor)

      Apply 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 (+) lead → Terminal 1 (TIM-)

      • 12 V battery negative (-) lead → Terminal 2 (TIM+)

      		 The steering wheel tilts down.

      • 12 V battery positive (+) lead → Terminal 2 (TIM+)

      • 12 V battery negative (-) lead → Terminal 1 (TIM-)

      		 The steering wheel tilts up.

    NG

    REPLACE ELECTRIC POWER STEERING COLUMN SUB-ASSEMBLY Click here

    OK

    REPLACE MULTIPLEX TILT AND TELESCOPIC ECU Click here

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


    1. Disconnect the I15 multiplex tilt and telescopic ECU connector.

    2. Disconnect the I23 tilt motor connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      I15-13 (VCI) - I23-4 (VCI) Always Below 1 Ω
      I15-16 (TIS) - I23-5 (TIS)
      I15-4 (E1) - I23-6 (E1)
      I15-13 (VCI) - Body ground 10 kΩ or higher
      I15-16 (TIS) - Body ground
      I15-4 (E1) - Body ground

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

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


    1. A01EXR7E14
      Text in Illustration
      *a

      Front view of wire harness connector

      (to Multiplex Tilt and Telescopic ECU)

      Disconnect the I15 multiplex tilt and telescopic ECU connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      I15-1 (GND) - Body ground Always Below 1 Ω
      I15-8 (GND2) - Body ground Always Below 1 Ω

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

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


    1. A01EXYZE08
      Text in Illustration
      *a

      Component with harness connected

      (Multiplex Tilt and Telescopic ECU)

      Disconnect the I23 tilt motor connector.

    2. Reconnect the I15 multiplex tilt and telescopic ECU connector.

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

      Standard Voltage
      Tester Connection Switch Condition Specified Condition
      I15-13 (VCI) - I15-4 (E1) Engine switch on (IG) 8 to 16 V
      I15-16 (TIS) - I15-4 (E1)

    NG

    REPLACE MULTIPLEX TILT AND TELESCOPIC ECU Click here

    OK

  9. CHECK TILT POSITION SENSOR


    1. A01EXYZE09
      Text in Illustration
      *a

      Component with harness connected

      (Multiplex Tilt and Telescopic ECU)

      Reconnect the I15 multiplex tilt and telescopic ECU connector.

    2. Reconnect the I23 tilt motor connector.

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

      Standard Voltage
      Tester Connection Condition Specified Condition
      I15-16 (TIS) - I15-4 (E1) Steering wheel tilting up or tilting down

      Pulse generation

      High: 8 to 16 V

      Low: Below 1 V

    NG

    REPLACE ELECTRIC POWER STEERING COLUMN SUB-ASSEMBLY Click here

    OK

    REPLACE MULTIPLEX TILT AND TELESCOPIC ECU Click here