Toyota Tundra. Manual — part 2712

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.

Fig. 20: Identifying Tilt Up & Down Lock Position
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.

HINT:

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

DETECTION CONDITION AND TROUBLE AREA TABLE

WIRING DIAGRAM

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

2009 Toyota Tundra

2009 STEERING Steering Column - Tundra

Fig. 21: Identifying Tilt Position Sensor Or Tilt Motor Circuit Malfunction - Wiring Diagram
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.

INSPECTION 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

steering wheel tilt up and down.

Tilt & Telescopic

TILT AND TELESCOPIC - ACTIVE TEST

Result

RESULT REFERENCE TABLE

Tester Display

Test Part

Control Range Diagnostic Note

Tilt operation Tilt operation

UP/DOWN

-

Result

Proceed to

Steering wheel does not tilt up (down).

A

Steering wheel tilts up (down).

B

2009 Toyota Tundra

2009 STEERING Steering Column - Tundra

Fig. 22: Identifying Steering Wheel Tilt Up & Down Position
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.

B: Go to step 4

A: Go to next step.

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

MOTOR)

a. Disconnect the J47 multiplex tilt and telescopic ECU connector.

b. Disconnect the J48 tilt motor connector.

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

Standard Resistance

STANDARD RESISTANCE SPECIFICATION TABLE

Fig. 23: Identifying J47 Multiplex Tilt & Telescopic ECU & J48 Tilt Motor Connectors

Tester Connection

Condition Specified Condition

J47-10 (TIM+) - J48-2 (TIM+) Always

Below 1 ohms

J47-1 (TIM-) - J48-1 (TIM-)

Always

Below 1 ohms

J47-10 (TIM+) - Body ground

Always

10 kohms or higher

J47-1 (TIM-) - Body ground

Always

10 kohms or higher

2009 Toyota Tundra

2009 STEERING Steering Column - Tundra

Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.

NG: REPAIR OR REPLACE HARNESS OR CONNECTOR

OK: Go to next step.

3. INSPECT TILT MOTOR

a. Apply 12 V battery voltage to the tilt motor connector. Then check the steering wheel tilt operation.

OK

BATTERY VOLTAGE SPECIFICATION TABLE

Fig. 24: Identifying Tilt Motor Connector Terminal
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.

NG: REPLACE STEERING COLUMN ASSEMBLY (See STEERING COLUMN ASSEMBLY
(for Power Tilt and Power Telescopic Steering Column) )

OK: REPLACE MULTIPLEX TILT AND TELESCOPIC ECU (See MULTIPLEX TILT AND
TELESCOPIC ECU (for Power Tilt and Power Telescopic Steering Column) )

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

POSITION SENSOR)

a. Disconnect the J47 multiplex tilt and telescopic ECU connector.

b. Disconnect the J48 tilt motor connector.

Measurement Condition

Specified Condition

12 V battery positive (+) lead --> Terminal J48-2 (TIM+)
12 V battery negative (-) lead --> Terminal J48-1 (TIM-)

The steering wheel tilts up.

12 V battery positive (+) lead --> Terminal J48-1 (TIM-)
12 V battery negative (-) lead --> Terminal J48-2 (TIM+)

The steering wheel tilts down.

2009 Toyota Tundra

2009 STEERING Steering Column - Tundra