Toyota Tundra. Manual — part 2706

a. When the ignition switch is turned OFF, the steering column moves away from the driver, and also

tilts up for easy ingress and egress.

b. When the ignition switch is turned ON, the steering column returns to the previously set position.

c. The auto away/return function can be prohibited by using the Techstream.

4. DRIVING POSITION MEMORY FUNCTION

a. The steering column moves to the previously set position by pressing the seat memory switches.

HOW TO PROCEED WITH TROUBLESHOOTING

HINT:



Use the following procedures to troubleshoot the power tilt and power telescopic steering column system.



*: Use the Techstream.

1. VEHICLE BROUGHT TO WORKSHOP

2. INSPECT BATTERY VOLTAGE

Standard voltage: 11 to 14 V

If the voltage is below 11 V, recharge or replace the battery before proceeding.

3. CHECK CAN COMMUNICATION SYSTEM*

a. Use the Techstream to check if the CAN communication system is functioning normally (see CAN

COMMUNICATION SYSTEM ).

Result

RESULT REFERENCE TABLE

B: Go to CAN COMMUNICATION SYSTEM

A: Go to next step.

4. CHECK FOR DTC*

a. Check for DTCs (see DTC CHECK/CLEAR ).

b. Clear the DTCs (see DTC CHECK/CLEAR ).

c. Recheck the DTCs (see DTC CHECK/CLEAR ).

Result

RESULT REFERENCE

Result

Proceed to

CAN DTC is not output

A

CAN DTC is output

B

2009 Toyota Tundra

2009 STEERING Steering Column - Tundra

B: Go to DIAGNOSTIC TROUBLE CODE TABLE

A: Go to next step.

5. PROBLEM SYMPTOMS TABLE

Result

RESULT REFERENCE TABLE

B: Go to step 7.

A: Go to next step.

6. OVERALL ANALYSIS AND TROUBLESHOOTING*

a. See TERMINALS OF ECU .

b. See DATA LIST/ACTIVE TEST ).

7. REPAIR

8. CONFIRMATION TEST

NEXT: END

CUSTOMIZE PARAMETERS

1. CUSTOMIZING FUNCTION WITH TECHSTREAM (REFERENCE)

a. Connect the Techstream to the DLC3.

b. Turn the ignition switch ON.

c. Turn the Techstream on.

d. Enter the following menus: Body/Tilt & Telescopic/Utility/Customize Setting.

Result

Proceed to

DTC does not reoccur

A

DTC reoccurs

B

Result

Proceed to

Fault is not listed in problem symptoms table

A

Fault is listed in problem symptoms table

B

NOTE:



When the customer requests a change in a function, first make sure
that the function can be customized.



Be sure to make a note of the current settings before customizing.



When troubleshooting a function, first make sure that the function is
set to the default setting.

2009 Toyota Tundra

2009 STEERING Steering Column - Tundra

e. Select the setting by referring to the table below.

Tilt & Telescopic

TILT AND TELESCOPIC REFERENCE TABLE

PROBLEM SYMPTOMS TABLE

HINT:



Use the table below to help determine the cause of problem symptoms. The potential causes of the
symptoms are listed in order of probability in the "Suspected Area" column of the table. Check each
symptom by checking the suspected areas in the order they are listed. Replace parts as necessary.



The power tilt and power telescopic steering column system uses the CAN communication system, so
check its diagnostic system before proceeding to troubleshooting.



If the problem still occurs when there is no abnormality in the related circuits, check the multiplex tilt and
telescopic ECU and replace it if necessary.

Power tilt and power telescopic steering column system

POWER TILT AND POWER TELESCOPIC STEERING COLUMN SYSTEM SYMPTOMS CHART

Display

Default

Contents

Setting

Autoaway/Return function

ON

ON/OFF of the auto away/return function ON/OFF

Symptom

Suspected Area

Reference

Tilt and telescopic
function does not operate
at all

Check DTCs

DTC CHECK/CLEAR

Actuator power source circuit

ACTUATOR POWER SOURCE CIRCUIT

IG power source circuit

IG POWER SOURCE CIRCUIT

Manual switch only does
not operate

Tilt and telescopic manual
switch circuit

DTC B2603: TILT AND TELESCOPIC
MANUAL SWITCH CIRCUIT
MALFUNCTION

Headlight dimmer switch
assembly (tilt and telescopic
manual switch)

DTC B2603: TILT AND TELESCOPIC
MANUAL SWITCH CIRCUIT
MALFUNCTION

Auto away/return
function only does not
operate

Check status of auto away
function using the Techstream

CUSTOMIZE PARAMETERS

IG power source circuit

IG POWER SOURCE CIRCUIT

Actuator power source circuit

ACTUATOR POWER SOURCE CIRCUIT

Auto away function only
does not operate

Unlock warning switch

DTC B2602: KEY UNLOCK WARNING
SWITCH CIRCUIT MALFUNCTION

Ignition switch

INSPECTION

Multiplex tilt and telescopic
ECU

TERMINALS OF ECU

Auto return function

Unlock warning switch

DTC B2602: KEY UNLOCK WARNING
SWITCH CIRCUIT MALFUNCTION

2009 Toyota Tundra

2009 STEERING Steering Column - Tundra

TERMINALS OF ECU

1. CHECK MULTIPLEX TILT AND TELESCOPIC ECU

Fig. 10: Identifying Terminals Of ECU
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.

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

CONNECTOR TERMINAL WIRING COLOR REFERENCE TABLE

only does not operate

Ignition switch

INSPECTION

Multiplex tilt and telescopic
ECU

TERMINALS OF ECU

Memory function only
does not operate

Front power seat control ECU
and switch LH

SYSTEM DESCRIPTION

Multiplex tilt and telescopic
ECU

TERMINALS OF ECU

Terminal No.

(Symbols)

Wiring Color

Terminal

Description

Condition

Specified

Condition

A-2 (TEM+) -

J47-11 (GND)

(Not

available) -

W-B

Telescopic motor

output



Ignition switch
ON



Telescopic
steering contracts

11 to 14 V

Telescopic motor is not

operating

Below 1 V

A-3 (VCE) - A-

5 (E2)

(Not

available)

Telescopic sensor

power source

Ignition switch ON

8 to 16 V

A-4 (TES) - A-

5 (E2)

(Not

available)

Telescopic sensor

signal

Telescopic motor is

operating

Pulse generation

High: 8 to 16 V

Low: Below 1 V

A-5 (E2) -

Body ground

(Not
available) -
Body ground

Telescopic sensor

ground

Always

Below 1 V

A-6 (TEM-) -

(Not

Telescopic motor



Ignition switch
ON

11 to 14 V

2009 Toyota Tundra

2009 STEERING Steering Column - Tundra