Toyota Tundra. Manual — part 705

OK: Go to Next Step

4. INSPECT IGNITION SWITCH

a. Remove the ignition switch.

1. For 1GR-FE, refer to the following procedures (see INSPECTION ).

2. For 2UZ-FE, refer to the following procedures (see INSPECTION ).

3. For 3UR-FE, refer to the following procedures (see INSPECTION ).

4. For 3UR-FBE, refer to the following procedures (see INSPECTION

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

Standard resistance

IGNITION SWITCH

Fig. 18: Identifying Ignition Switch Connector Terminals
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.

Result

STANDARD RESISTANCE RESULT CHART

B: REPLACE IGNITION SWITCH (See REMOVAL )

C: REPLACE IGNITION SWITCH (See REMOVAL )

D: REPLACE IGNITION SWITCH (See REMOVAL )

Tester Connection Switch Condition Specified Condition

1 (IG1) - 4 (AM1) Ignition switch ON

Below 1 ohms

Result

Proceed to

OK

A

NG (for 1GR-FE)

B

NG (for 2UZ-FE)

C

NG (for 3UR-FE)

D

NG (for 3UR-FBE)

E

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2009 ACCESSORIES AND EQUIPMENT Theft Deterrent - Tundra

E: REPLACE IGNITION SWITCH (See REMOVAL

A: Go to Next Step

5. CHECK HARNESS AND CONNECTOR (MAIN BODY ECU - IGNITION SWITCH AND BODY

GROUND)

a. Disconnect the DD main body ECU connector.

b. Disconnect the J9 ignition switch connector.

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

Standard resistance

MAIN BODY ECU - IGNITION SWITCH AND BODY GROUND

Fig. 19: Checking Harness And Connector (Main Body ECU - Ignition Switch And Body
Ground)
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.

NG: REPAIR OR REPLACE HARNESS OR CONNECTOR

Tester Connection Condition Specified Condition

DD-47 - J9-4(AM1)

Always

Below 1 ohms

DD-43 - J9-1 (IG1)

DD-62 - Body ground
DD-47 - Body ground

Always

10 kohms or higher

DD-43 - Body ground

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OK: REPLACE MAIN BODY ECU

GLASS BREAKAGE SENSOR ECU CIRCUIT

DESCRIPTION

When the glass breakage sensor detects the glass is broken (1st time), the sensor will set off an alarm for 20
seconds (pre-alarm). If the glass breakage sensor detects that more glass is broken (2nd time or more), the
sensor will set off an alarm for 60 seconds.

WIRING DIAGRAM

Fig. 20: Glass Breakage Sensor ECU - Wiring Diagram
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.

INSPECTION PROCEDURE

1. READ VALUE OF TECHSTREAM (GLASS BREAKAGE SENSOR)

a. Using Techstream, read the Data List.

Techstream

MAIN BODY

TECHSTREAM MAIN BODY REFERENCE CHART

Tester Display

Measurement Item/Range

Normal Condition

Diagnostic

Note

ON: Glass breakage

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OK: When tapping on the door glass with your finger, "ON" is displayed on the
Techstream screen.

NG: Go to step 2

OK: PROCEED TO NEXT CIRCUIT INSPECTION SHOWN IN PROBLEM SYMPTOMS
TABLE

2. INSPECT FUSE (ECU-IG No. 1)

a. Remove the ECU-IG No. 1 fuse from the main body ECU.

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

Standard resistance

FUSE (ECU-IG No. 1)

NG: REPLACE FUSE

OK: Go to Next Step

3. CHECK HARNESS AND CONNECTOR (GLASS BREAKAGE SENSOR ECU - BATTERY AND

BODY GROUND)

a. Disconnect the J57 glass breakage sensor ECU connector.

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

Standard voltage

GLASS BREAKAGE SENSOR ECU - BATTERY AND BODY GROUND VOLTAGE

Standard resistance

GLASS BREAKAGE SENSOR ECU - BATTERY AND BODY GROUND RESISTANCE

Glass Break Sensor

Detection

Glass breakage sensor
detection / ON or OFF

sensor ON
OFF: Glass breakage
sensor OFF

-

Tester Connection Condition Specified Condition

ECU-IG No. 1 fuse Always

Below 1 ohms

Tester Connection

Switch Condition Specified Condition

J57-2 (GB+B) - J57-6 (GND)

Always

11 to 14 V

J57-3 (GBIG) - J57-6 (GND)

Ignition switch ON

11 to 14 V

Ignition switch OFF

Below 1 V

Tester Connection

Condition Specified Condition

J57-6 (GND) - Body ground Always

Below 1 ohms

2009 Toyota Tundra

2009 ACCESSORIES AND EQUIPMENT Theft Deterrent - Tundra