Toyota Tundra. Manual — part 706

Fig. 21: Identifying J57 Glass Breakage Sensor ECU Connector Terminals
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.

NG: REPAIR OR REPLACE HARNESS OR CONNECTOR

OK: Go to Next Step

4. CHECK HARNESS AND CONNECTOR (MAIN BODY ECU - GLASS BREAKAGE SENSOR

ECU)

a. Disconnect the J4 main body ECU connector.

b. Disconnect the J57 glass breakage sensor ECU connector.

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

Standard resistance

MAIN BODY ECU - GLASS BREAKAGE SENSOR ECU

Tester Connection

Condition Specified Condition

J4-17 (GBS) - J57-5 (GBS1)

Always

Below 1 ohms

J4-17 (GBS) or J57-5 (GBS1) - Body ground Always

10 kohms or higher

2009 Toyota Tundra

2009 ACCESSORIES AND EQUIPMENT Theft Deterrent - Tundra

Fig. 22: Checking Harness And Connector (Main Body ECU - Glass Breakage Sensor ECU)
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.

NG: REPAIR OR REPLACE HARNESS OR CONNECTOR

OK: Go to Next Step

5. CHECK HARNESS AND CONNECTOR (GLASS BREAKAGE SENSOR ECU - GLASS

BREAKAGE SENSOR MICROPHONE)

a. Disconnect the J57 glass breakage sensor ECU connector.

b. Disconnect the J58 glass breakage sensor microphone connector.

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

Standard resistance

GLASS BREAKAGE SENSOR ECU - GLASS BREAKAGE SENSOR MICROPHONE

Tester Connection

Condition Specified Condition

J57-8 (MI+) - J58-3 (MIC+)

Always

Below 1 ohms

J57-7 (MI-) - J58-4 (MIC-)

J57-8 (MI+) or J58-3 (MIC+)- Body ground Always

10 kohms or higher

2009 Toyota Tundra

2009 ACCESSORIES AND EQUIPMENT Theft Deterrent - Tundra

Fig. 23: Checking Harness And Connector (Glass Breakage Sensor ECU - Glass Breakage
Sensor Microphone)
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.

NG: REPAIR OR REPLACE HARNESS OR CONNECTOR

OK: Go to Next Step

6. CHECK GLASS BREAKAGE SENSOR ECU (GLASS BREAKAGE SENSOR OUTPUT)

a. Reconnect the J57 glass breakage sensor ECU connector.

b. Reconnect the J58 glass breakage sensor microphone connector.

c. Reconnect the J4 main body ECU connector.

d. Turn the ignition switch ON.

e. Using an oscilloscope, check the waveform.

Standard

GLASS BREAKAGE SENSOR ECU (GLASS BREAKAGE SENSOR OUTPUT)

Test Connector

Tool Setting

Vehicle Condition

Specified

Condition

2009 Toyota Tundra

2009 ACCESSORIES AND EQUIPMENT Theft Deterrent - Tundra

Result

OSCILLOSCOPE TESTER RESULT CHART

Fig. 24: Identifying J57 Glass Breakage Sensor ECU Connector
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.

B: REPLACE GLASS BREAKAGE SENSOR MICROPHONE (see REMOVAL )

C: REPLACE GLASS BREAKAGE SENSOR MICROPHONE (see REMOVAL )

A: REPLACE GLASS BREAKAGE SENSOR ECU (see REMOVAL )

SECURITY INDICATOR LIGHT CIRCUIT

J57-5 (GBS1) -

Body ground

1 V/DIV., 50
msec/DIV.

Ignition switch ON Tap the door glass with
a hard object such as your fingernail

Pulse

generation

Result

Proceed to

OK

A

NG (for Column Shift Type)

B

NG (for Floor Shift Type)

C

2009 Toyota Tundra

2009 ACCESSORIES AND EQUIPMENT Theft Deterrent - Tundra