Toyota Tundra. Manual — part 423

Fig. 31: Entire Combination Meter Does Not Operate - Wiring Diagram
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.

INSPECTION PROCEDURE

1. INSPECT FUSE (MET, MET-B)

a. Remove the MET and MET-B fuses from the engine room relay block.

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

Standard resistance

FUSE (MET, MET-B) RESISTANCE REFERENCE

NG: REPLACE FUSE

OK: Go to next step

2. CHECK HARNESS AND CONNECTOR (COMBINATION METER - BATTERY AND BODY

GROUND)

a. Disconnect the J28 meter connector.

Tester Connection Condition Specified Condition

MET fuse

Always

Below 1 ohms

MET-B fuse

2009 Toyota Tundra

2009 ACCESSORIES AND EQUIPMENT Meter - Tundra

Fig. 32: Identifying J28 Meter Connector Terminals
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.

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

Standard resistance

RESISTANCE REFERENCE

Standard voltage

VOLTAGE SPECIFICATIONS

NG: REPAIR OR REPLACE HARNESS OR CONNECTOR

OK: REPLACE COMBINATION METER ASSEMBLY (see REMOVAL )

SPEEDOMETER MALFUNCTION

DESCRIPTION

The combination meter receives vehicle speed signals from the skid control ECU via the CAN line. The vehicle
speed sensor detects the voltage that varies according to the vehicle speed. The skid control ECU supplies
power to the vehicle speed sensor. The skid control ECU detects vehicle speed signals based on the pulses of
the voltage.

WIRING DIAGRAM

Tester Connection

Condition Specified Condition

J28-40 (E1) - Body ground Always

Below 1 ohms

Tester Connection

Switch Condition Specified Condition

J28-18 (B) - Body ground

Always

11 to 14 V

J28-20 (IG+) - Body ground Ignition switch ON

2009 Toyota Tundra

2009 ACCESSORIES AND EQUIPMENT Meter - Tundra

Fig. 33: Speedometer Malfunction - Wiring Diagram
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.

INSPECTION PROCEDURE

1. CHECK CAN COMMUNICATION

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. CHECK SFI SYSTEM (VEHICLE SPEED)

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

Result

SFI SYSTEM (VEHICLE SPEED) RESULT REFERENCE

Result

Proceed to

CAN communication DTC is not output

A

CAN communication DTC is output

B

Result

Proceed to

SFI system DTC is not output

A

SFI system (for 1GR-FE) DTC is output

B

2009 Toyota Tundra

2009 ACCESSORIES AND EQUIPMENT Meter - Tundra

B: Go to DIAGNOSTIC TROUBLE CODE CHART (See DIAGNOSTIC TROUBLE CODE
CHART )

C: Go to DIAGNOSTIC TROUBLE CODE CHART (See DIAGNOSTIC TROUBLE CODE
CHART )

D: Go to DIAGNOSTIC TROUBLE CODE CHART

E: Go to DIAGNOSTIC TROUBLE CODE CHART (See DIAGNOSTIC TROUBLE CODE
CHART

A: Go to next step

3. PERFORM ACTIVE TEST BY TECHSTREAM (SPEEDOMETER)

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

HINT:



Confirm that the vehicle is stopped and engine is idling. It is normal that door will be
locked automatically when performing the speedometer Active Test.



The displayed value has the same units (km/h, mph) as the main scale of the vehicle's
speedometer.



The needle position should be within the acceptable tolerance.

OK: Needle indication is normal.

NG: REPLACE COMBINATION METER ASSEMBLY (see REMOVAL )

OK: Go to next step

4. READ VALUE OF TECHSTREAM (VEHICLE SPEED)

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

DATA LIST / ACTIVE TEST ).

SFI system (for 2UZ-FE) DTC is output

C

SFI system (for 3UR-FE) DTC is output

D

SFI system (for 3UR-FE) DTC is output

E

Tester Display

Test Part

Control Range

Diagnostic Note

Speed Meter Operation Speedometer 0,40, 80,120,160, 200, 240 or 280

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2009 Toyota Tundra

2009 ACCESSORIES AND EQUIPMENT Meter - Tundra