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 & 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 CPU 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 & telescopic ECU and telescopic motor is provided with the steering column assembly.

PROCEDURE

1. PERFORM ACTIVE TEST USING TECHSTREAM

(a) Connect the Techstream to the DLC3.





(b) Turn the engine switch on (IG).

(c) Turn the Techstream on.

(d) Check that the steering column contracts (extends). Enter the following menus: Chassis / Tilt&Telescopic / Active Test.

Tilt&Telescopic





OK:

Steering column contracts (extends).

OK -- INSPECT MULTIPLEX TILT & TELESCOPIC ECU (VCE TERMINAL VOLTAGE)
NG -- Continue to next step.

2. INSPECT TELESCOPIC MOTOR

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





(b) Connect the positive battery terminal to terminal TEM+ and the negative battery terminal to terminal TEM- of the telescopic motor connector. Then confirm that the steering column contracts.

OK:

Steering column contracts.

(c) Connect the negative battery terminal to terminal TEM+ and the positive battery terminal to terminal TEM- of the telescopic motor connector. Then confirm that the steering column extends.

OK:

Steering column extends.

NG -- REPLACE STEERING COLUMN ASSEMBLY

OK -- REPLACE MULTIPLEX TILT & TELESCOPIC ECU

3. INSPECT MULTIPLEX TILT & 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 (MULTIPLEX TILT & TELESCOPIC ECU - BODY GROUND (VCE CIRCUIT))
OK -- Continue to next step.

4. INSPECT TELESCOPIC POSITION SENSOR

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





Standard voltage:





NG -- REPLACE STEERING COLUMN ASSEMBLY

OK -- REPLACE MULTIPLEX TILT & TELESCOPIC ECU

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

(a) Disconnect connector A from the multiplex tilt & 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 (MULTIPLEX TILT & TELESCOPIC ECU - BODY GROUND (GND CIRCUIT))

(a) Disconnect the J28 connector from the multiplex tilt & 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 -- REPLACE MULTIPLEX TILT & TELESCOPIC ECU