POWER TILT AND POWER TELESCOPIC STEERING COLUMN SYSTEM, Diagnostic DTC:B2611

DTC Code DTC Name
B2611 Telescopic Position Sensor or Telescopic Motor Circuit Malfunction

DESCRIPTION

The telescopic motor is operated by the power source voltage supplied from the multiplex tilt and telescopic ECU and slides the steering column forward and backward. The telescopic position sensor (Hall IC) in the telescopic motor detects the sliding position of the steering column in the forward and backward directions and sends a signal to the multiplex tilt and telescopic ECU based on that sliding amount.

A01W2CVE16

Tech Tips

Limit positions can be confirmed on the GTS.

DTC No. Detection Condition Trouble Area
B2611 Telescopic operation stops within the operation range while operating.

  • Telescopic position sensor or telescopic motor

  • Harness or connector

  • Multiplex tilt and telescopic ECU

WIRING DIAGRAM

A01W138E24

CAUTION / NOTICE / HINT

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 telescopic motor is provided with the electric power steering column sub-assembly.

PROCEDURE


  1. PERFORM ACTIVE TEST USING GTS (TELESCO OPERATION)


    1. A01W5FYE02
      Text in Illustration
      *a Extend
      *b Contract

      Turn the engine switch off.

    2. Connect the GTS to the DLC3.

    3. Turn the engine switch on (IG).

    4. Turn the GTS on.

    5. Check that the steering column contracts and extends.

    6. Enter the following menus: Body Electrical / Tilt & Telescopic / Active Test.

      Tilt & Telescopic
      Tester Display Test Part Control Range Diagnostic Note
      Telesco Operation Telescopic operation LONG/SHORT -
      OK
      The steering column contracts and extends.

    NG

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

    OK

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


    1. A01W4P6E01
      Text in Illustration
      *a

      Front view of wire harness connector

      (to Multiplex Tilt and Telescopic ECU)

      Disconnect the H12 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
      H12-2 (+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. A01W272E05
      Text in Illustration
      *a

      Front view of wire harness connector

      (to Multiplex Tilt and Telescopic ECU)

      Disconnect the H12 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
      H12-1 (GND) - Body ground Always Below 1 Ω
      H12-8 (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 - TELESCOPIC MOTOR)


    1. Disconnect the H12 multiplex tilt and telescopic ECU connector.

    2. Disconnect the H28 telescopic motor connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      H12-6 (TEM+) - H28-2 (TEM+) Always Below 1 Ω
      H12-19 (TEM-) - H28-1 (TEM-)
      H12-6 (TEM+) - Body ground 10 kΩ or higher
      H12-19 (TEM-) - Body ground

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  5. CHECK TELESCOPIC MOTOR


    1. A01W448E03
      Text in Illustration
      *a

      Component without harness connected

      (Telescopic Motor)

      Apply 12 V battery voltage to the telescopic motor connector. Then check the steering column telescopic operation.

      OK
      Measurement Condition Specified Condition

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

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

      		 The steering column contracts.

      • 12 V battery positive (+) lead → Terminal 1 (TEM-)

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

      		 The steering column extends.

    OK

    REPLACE MULTIPLEX TILT AND TELESCOPIC ECU Click here

    NG

    REPLACE ELECTRIC POWER STEERING COLUMN SUB-ASSEMBLY Click here

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


    1. Disconnect the H12 multiplex tilt and telescopic ECU connector.

    2. Disconnect the H28 telescopic motor connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      H12-14 (VCE) - H28-4 (VCE) Always Below 1 Ω
      H12-15 (TES) - H28-5 (TES)
      H12-17 (E2) - H28-6 (E2)
      H12-14 (VCE) - Body ground 10 kΩ or higher
      H12-15 (TES) - Body ground
      H12-17 (E2) - Body ground

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

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


    1. A01W272E05
      Text in Illustration
      *a

      Front view of wire harness connector

      (to Multiplex Tilt and Telescopic ECU)

      Disconnect the H12 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
      H12-1 (GND) - Body ground Always Below 1 Ω
      H12-8 (GND2) - Body ground Always Below 1 Ω

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  8. CHECK MULTIPLEX TILT AND TELESCOPIC ECU (VCE, TES TERMINAL VOLTAGE)


    1. A01W0Q4E02
      Text in Illustration
      *a

      Component with harness connected

      (Multiplex Tilt and Telescopic ECU)

      Disconnect the H28 telescopic motor connector.

    2. Reconnect the H12 multiplex tilt and telescopic ECU connector.

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

      Standard Voltage
      Tester Connection Condition Specified Condition
      H12-14 (VCE) - H12-17 (E2) Engine switch on (IG) 8 to 16 V
      H12-15 (TES) - H12-17 (E2)

    NG

    REPLACE MULTIPLEX TILT AND TELESCOPIC ECU Click here

    OK

  9. CHECK TELESCOPIC POSITION SENSOR


    1. A01W0Z4E02
      Text in Illustration
      *a

      Component with harness connected

      (Multiplex Tilt and Telescopic ECU)

      Reconnect the H12 multiplex tilt and telescopic ECU connector.

    2. Reconnect the H28 telescopic motor connector.

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

      Standard Voltage
      Tester Connection Condition Specified Condition
      H12-15 (TES) - H12-17 (E2) Steering column contracting or extending

      Pulse generation

      High: 8 to 16 V

      Low: Below 1 V

    OK

    REPLACE MULTIPLEX TILT AND TELESCOPIC ECU Click here

    NG

    REPLACE ELECTRIC POWER STEERING COLUMN SUB-ASSEMBLY Click here