Toyota Tundra. Manual — part 424

Techstream

Combination Meter:

TECHSTREAM COMBINATION METER SPECIFICATIONS

OK: Vehicle speed displayed on tester is almost the same as actual vehicle speed
measured using speedometer tester (calibrated chassis dynamometer).

NG: Go to step 5

OK: REPLACE COMBINATION METER ASSEMBLY (see REMOVAL )

5. READ VALUE OF TECHSTREAM (WHEEL SPEED SENSOR)

a. Operate the Techstream according to the display and select "DATA LIST" or "Data List" (see

DATA LIST / ACTIVE TEST ).

Techstream

ABS/VSC/TRAC:

TECHSTREAM ABS/VSC/TRAC REFERENCE

OK: Vehicle speed displayed on tester is almost the same as actual vehicle speed
measured using speedometer tester (calibrated chassis dynamometer).

NG: REPLACE ABS AND TRACTION ACTUATOR ASSEMBLY (See DISASSEMBLY )

OK: REPLACE COMBINATION METER ASSEMBLY (see REMOVAL )

TACHOMETER MALFUNCTION

DESCRIPTION

The combination meter receives engine revolution signals from the ECM via the CAN line. The combination
meter displays engine revolution data that is calculated based on the data received from the ECM.

WIRING DIAGRAM

Tester

Display

Measurement Item/Range

Normal Condition

Diagnostic

Note

Vehicle Speed

meter

Vehicle speed/Min.: 0 (0),
Max.: 255(158)

Almost same as actual speed
(when driving)

Unit: km/h
(mph)

Tester Display

Measurement Item/Range

Normal

Condition

Diagnostic Note

(FL/FR/RURR)

Wheel Speed

Wheel speed sensor (FL/FR/RL/
RR) reading/Min.: 0 (0), Max.:
326(202)

Actual wheel
speed

Similar speed as
indicated on
speedometer

2009 Toyota Tundra

2009 ACCESSORIES AND EQUIPMENT Meter - Tundra

Fig. 34: Tachometer Malfunction - Wiring Diagram
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.

INSPECTION PROCEDURE

1. CHECK CAN COMMUNICATION SYSTEM

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

Result

DTC RESULT REFERENCE

B: Go to CAN COMMUNICATION SYSTEM (See CAN COMMUNICATION SYSTEM )

A: Go to next step

2. PERFORM ACTIVE TEST BY TECHSTREAM (TACHOMETER)

a. Operate the Techstream according to the display and select "ACTIVE TEST" or "Active Test" (see

DATA LIST / ACTIVE TEST ).

Techstream

Combination Meter:

TECHSTREAM COMBINATION METER SPECIFICATIONS

Result

Proceed to

CAN communication system DTC is not output

A

CAN communication system DTC is output

B

Diagnostic

2009 Toyota Tundra

2009 ACCESSORIES AND EQUIPMENT Meter - Tundra

HINT:

Confirm that the vehicle is stopped and engine idling.

OK: Needle indication is normal.

NG: REPLACE COMBINATION METER ASSEMBLY (see REMOVAL )

OK: Go to next step

3. READ VALUE OF TECHSTREAM (TACHOMETER)

a. Operate the Techstream according to the display and select "ACTIVE TEST" or "Active Test" (see

DATA LIST / ACTIVE TEST ).

Techstream

Combination Meter:

TECHSTREAM COMBINATION METER SPECIFICATIONS

OK: Engine speed displayed on tester is almost the same as actual engine speed.

NG: Go to step 4

OK: REPLACE COMBINATION METER ASSEMBLY (see REMOVAL )

4. READ VALUE OF TECHSTREAM (ENGINE SPEED)

a. Operate the Techstream according to the display and select "DATA LIST" or "Data List" (see

DATA LIST / ACTIVE TEST ).

Techstream

Engine and ECT:

TECHSTREAM ENGINE AND ECT SPECIFICATIONS

Result

RESULT REFERENCE

Tester Display

Test Part

Control Range

Note

Tachometer

Operation

Tachometer

0,1000, 2000, 3000, 4000, 5000, 6000,
7000

-

Tester Display

Measurement Item/Range

Normal Condition Diagnostic Note

Engine Rpm Engine speed/Min.: 0, Max.: 12750 Idling: 700 to 800 Unit: rpm

Tester Display

Measurement Item/Range

Normal Condition Diagnostic Note

Engine Speed Engine speed/Min.: 0, Max.: 16838.75 Idling: 700 to 800 Unit: rpm

2009 Toyota Tundra

2009 ACCESSORIES AND EQUIPMENT Meter - Tundra

OK: Engine speed displayed on tester is almost the same as actual engine speed.

B: Go to PROBLEM SYMPTOMS TABLE (See PROBLEM SYMPTOMS TABLE )

C: Go to PROBLEM SYMPTOMS TABLE (See PROBLEM SYMPTOMS TABLE )

D: Go to PROBLEM SYMPTOMS TABLE

E: Go to PROBLEM SYMPTOMS TABLE (See PROBLEM SYMPTOMS TABLE

A: REPLACE COMBINATION METER ASSEMBLY (see REMOVAL )

FUEL RECEIVER GAUGE MALFUNCTION

DESCRIPTION

The fuel sender gauge has a variable resistance mechanism. The resistance decreases when the fuel amount
increases, and the resistance increases when the fuel amount decreases. The fuel receiver gauge changes based
on the resistance of the fuel sender gauge.

WIRING DIAGRAM

Result

Proceed to

Engine speed displayed on tester is almost
same as actual engine speed

A

Engine speed displayed on tester is not same
as actual engine speed (for 1GR-FE)

B

Engine speed displayed on tester is not same
as actual engine speed (for 2UZ-FE)

C

Engine speed displayed on tester is not same
as actual engine speed (for 3UR-FE)

D

Engine speed displayed on tester is not same
as actual engine speed (for 3UR-FBE)

E

2009 Toyota Tundra

2009 ACCESSORIES AND EQUIPMENT Meter - Tundra