B2611

STEERING COLUMN: POWER TILT AND POWER TELESCOPIC STEERING COLUMN SYSTEM: B2611: Telescopic Position Sensor or Telescopic Motor Circuit Malfunction
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 in the forward and backward directions of the steering column and outputs a signal to the multiplex tilt and telescopic ECU based on that sliding amount.





HINT
Limit positions can be confirmed on the screen of the Techstream.





WIRING DIAGRAM





INSPECTION PROCEDURE

HINT
The wire harness between the multiplex tilt and telescopic ECU and telescopic motor is provided with the steering column assembly.

PROCEDURE

1. PERFORM ACTIVE TEST USING THE TECHSTREAM (TELESCOPIC SHORT/LONG)





(a) Select the Active Test, use the Techstream to generate a control command, and then check the telescopic operation.

Tilt & Telescopic





Result





B -- CHECK MULTIPLEX TILT AND TELESCOPIC ECU (VCE TERMINAL VOLTAGE)
A -- Continue to next step.

2. CHECK TELESCOPIC MOTOR

(a) Disconnect connector A from the multiplex tilt and telescopic ECU.





(b) Apply the 12 V battery voltage to the multiplex tilt and telescopic ECU connector. Then check the steering wheel telescopic operation.

OK:





NG -- REPLACE STEERING COLUMN ASSEMBLY Removal

OK -- REPLACE MULTIPLEX TILT AND TELESCOPIC ECU Removal

3. CHECK MULTIPLEX TILT AND TELESCOPIC ECU (VCE TERMINAL VOLTAGE)

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





Standard voltage:





NG -- CHECK HARNESS AND CONNECTOR (ECU - TELESCOPIC POSITION SENSOR)
OK -- Continue to next step.

4. CHECK TELESCOPIC POSITION SENSOR

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





Standard voltage:





NG -- REPLACE STEERING COLUMN ASSEMBLY Removal

OK -- REPLACE MULTIPLEX TILT AND TELESCOPIC ECU Removal

5. CHECK HARNESS AND CONNECTOR (ECU - TELESCOPIC POSITION SENSOR)

(a) Disconnect connector A from the multiplex tilt and telescopic ECU.





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

Standard resistance:





NG -- REPAIR OR REPLACE HARNESS OR CONNECTOR
OK -- Continue to next step.

6. CHECK HARNESS AND CONNECTOR (ECU - BODY GROUND)

(a) Disconnect the L34 multiplex tilt and telescopic ECU connector.





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

Standard resistance:





NG -- REPAIR OR REPLACE HARNESS OR CONNECTOR

OK -- REPLACE MULTIPLEX TILT AND TELESCOPIC ECU Removal