STEERING COLUMN: POWER TILT AND POWER TELESCOPIC STEERING COLUMN SYSTEM: DESCRIPTION (2008 Sequoia)

Last Modified: 11-29-2007		1.6 C
Service Category: Steering	Section: Steering Column
Model Year: 2008	Model: Sequoia	Doc ID: RM000000XZ901GX
Title: STEERING COLUMN: POWER TILT AND POWER TELESCOPIC STEERING COLUMN SYSTEM: DESCRIPTION (2008 Sequoia)

DTC

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.

HINT:

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

DTC Code	Detection Condition	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

INSPECTION PROCEDURE

PROCEDURE

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

(a) Select the Active Test, use the Techstream to generate a control command, and then check that the tilt up/down function operates normally.

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

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

(a) Disconnect the H57 multiplex tilt and telescopic ECU connector.

(b) Disconnect the H58 tilt motor connector.

Standard Resistance:

Tester Connection	Condition	Specified Condition
H57-10 (TIM+) - H58-2 (TIM+)	Always	Below 1 Ω
H57-1 (TIM-) - H58-1 (TIM-)	Always	Below 1 Ω
H57-10 (TIM+) - Body ground	Always	10 kΩ or higher
H57-1 (TIM-) - Body ground	Always	10 kΩ or higher

3.	INSPECT TILT MOTOR

(a) Connect the positive (+) battery terminal to terminal 2 (TIM+) and the negative (-) battery terminal to terminal 1 (TIM-) of the tilt motor connector. Then confirm that the steering wheel tilts up.

OK:

The steering wheel tilts up.

(b) Connect the negative (-) battery terminal to terminal 2 (TIM+) and the positive (+) battery terminal to terminal 1 (TIM-) of the tilt motor connector. Then confirm that the steering wheel tilts down.

OK:

The steering wheel tilts down.

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

(a) Disconnect the H57 multiplex tilt and telescopic ECU connector.

(b) Disconnect the H58 tilt motor connector.

Standard Resistance:

Tester Connection	Condition	Specified Condition
H57-6 (VCI) - H58-4 (VCI)	Always	Below 1 Ω
H57-7 (TIS) - H58-5 (TIS)	Always	Below 1 Ω
H57-17 (E1) - H58-6 (E1)	Always	Below 1 Ω
H57-6 (VCI) - Body ground	Always	10 kΩ or higher
H57-7 (TIS) - Body ground	Always	10 kΩ or higher
H57-17 (E1) - Body ground	Always	10 kΩ or higher

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

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

Standard Resistance:

Tester Connection	Condition	Specified Condition
H57-11 (GND) - Body ground	Always	Below 1 Ω

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

(a) Reconnect the H57 multiplex tilt and telescopic ECU connector.

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

Standard Voltage:

Tester Connection	Switch Condition	Specified Condition
H58-4 (VCI) - H58-6 (E1)	Ignition switch ON	8 to 16 V
H58-5 (TIS) - H58-6 (E1)	Ignition switch ON	8 to 16 V

7.	INSPECT TILT POSITION SENSOR

(a) Reconnect the H58 tilt motor connector.

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

Standard Voltage:

Tester Connection	Condition	Specified Condition
H57-7 (TIS) - H57-17 (E1)	Steering tilts up or tilts down	8 to 16 V (Pulse HI)
H57-7 (TIS) - H57-17 (E1)	Steering tilts up or tilts down	Below 1 V (Pulse LOW)