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Toyota Tundra. Manual - part 367

Fig. 13: Identifying Waveform 4
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.

DTC CHECK/CLEAR

1. CHECK FOR IMMOBILIZER DTC

a. Connect the Techstream to the DLC3.

b. Turn the ignition switch ON.

c. Turn the tester ON.

d. Enter the following menus:

Techstream - Select: Body Electrical / IMMOBILIZER / Trouble Codes.

e. Check DTCs.

HINT:



When using Techstream with the ignition switch OFF to troubleshoot: Connect the
Techstream to the vehicle, and turn the front door courtesy light switch LH on and off at 1.5
second intervals until communication between the tester and vehicle begins.



Refer to the Techstream operator's manual for further details.

2. CHECK FOR ECM DTC

a. Connect the Techstream to the DLC3.

b. Turn the ignition switch ON.

c. Turn the tester ON.

d. Enter the following menus:

Techstream - Select: Powertrain / Engine and ECT / Trouble Codes.

e. Check DTCs.

3. CLEAR FOR IMMOBILIZER DTC

a. Connect the Techstream to the DLC3.

b. Turn the ignition switch ON.

c. Turn the tester ON.

2009 Toyota Tundra

2009 ACCESSORIES AND EQUIPMENT Engine Immobilizer - Tundra

d. Enter the following menus:

Techstream - Select: Body Electrical / Immobilizer / Trouble Codes.

e. Clear the DTCs.

HINT:



Refer to the Techstream operator's manual for further details.

4. CLEAR FOR ECM DTC

a. Connect the Techstream to the DLC3.

b. Turn the ignition switch ON.

c. Turn the tester ON.

d. Enter the following menus:

Techstream - Select: Powertrain / Engine and ECT / Trouble Codes.

e. Clear the DTCs.

DATA LIST / ACTIVE TEST

1. READ DATA LIST

HINT:

Using the Techstream to read the Data List allows the values or states of switches, sensors, actuators and
other items to be read without removing any parts. This non-intrusive inspection can be very useful
because intermittent conditions or signals may be discovered before parts or wiring is disturbed. Reading
the Data List information early in troubleshooting is one way to save diagnostic time.

a. Connect the Techstream to the DLC3.

b. Turn the ignition switch ON.

c. Turn the tester ON.

d. Enter the following menus:

Techstream - Select: Body Electrical / Immobilizer / Data List.

e. According to the display on tester, read the "Data List".

DATA LIST - IMMOBILIZER

Tester Display

Measurement Item/Range

Normal Condition

Diagnostic

2009 Toyota Tundra

2009 ACCESSORIES AND EQUIPMENT Engine Immobilizer - Tundra

Note

Key SW

Unlock warning switch signal /

ON or OFF

ON: Key is in ignition key
cylinder
OFF: No key is in ignition
key cylinder

IG SW

Ignition switch signal / ON or OFF

ON: Ignition switch ON
OFF: Ignition switch ACC or
OFF

Immobilizer

Immobilizer system status / Set or

Unset

Set: No key is in ignition key
cylinder
Unset: Key is in ignition key
cylinder

Permit (Start)

Permit (start) signal / OK or NG

OK: Engine start is permitted
NG: Engine start is not
permitted

Response

Transponder chip data / OK or NG

OK: Data OK
NG: Data error

Frame Error

Transponder chip data / OK or NG

OK: Data OK
NG: Data error

Different Serial

Number

Transponder chip data / OK or NG

OK: Data OK
NG: Data error

Different Encrypt

Code

Transponder chip data / OK or NG

OK: Data OK
NG: Data error

Abnormal Status Transponder chip data / OK or NG

OK: Data OK
NG: Data error

BCC Malfunction

Transponder chip signal / OK or

OK: Correct data sent
NG: Incorrect data sent

Sub Key

Sub-key code signal / Reg or

Unreg

Reg: Registered sub-key
code is sent
Unreg: Unmatched sub-key
code is sent

Master Key

Master key code signal / Reg or

Unreg

Reg: Registered master key
code is sent
Unreg: Unmatched master
key code is sent

Transponder S-

code

Number of registered sub-keys /

min.: 0, max.: 15

Number of registered sub-
keys

Transponder M-

code

Number of registered master keys /

min.: 0, max.: 15

Number of registered master
keys

Reg Code Space

Full

Key registration code memory

space full / YES or NO

NO: Possible to register
more key codes
YES: Cannot register any
more key codes

+B judgment / Normal or Break Normal: Battery supply is

normal

2009 Toyota Tundra

2009 ACCESSORIES AND EQUIPMENT Engine Immobilizer - Tundra

2. PERFORM ACTIVE TEST

HINT:

Using the Techstream to perform Active Tests allows relays, VSVs, actuators and other items to be
operated without removing any parts. This non-intrusive functional inspection can be very useful because
intermittent operation may be discovered before parts or wiring is disturbed. Performing Active Tests
early in troubleshooting is one way to save diagnostic time. Data List information can be displayed while
performing Active Tests.

a. Connect the Techstream to the DLC3.

b. Turn the ignition switch ON.

c. Turn the tester ON.

d. Enter the following menus:

Techstream - Select: Body Electrical / Immobilizer / Active Test.

e. Perform the Active Test according to the display on the tester.

TESTER DISPLAY - IMMOBILIZER

DIAGNOSTIC TROUBLE CODE CHART

HINT:

If a trouble code is displayed during the DTC check, inspect the trouble areas listed for that code.

1. TRANSPONDER KEY ECU DTC CHART

Immobilizer

IMMOBILIZER DIAGNOSTIC TROUBLE CODE CHART

Break: Battery supply is
malfunctioning

Antenna Coil

Status

Antenna coil condition / Normal or

Fail

Normal: Antenna coil is
normal
Fail: Antenna coil is
malfunctioning

Tester Display

Test Part

Control Range Diagnostic Note

Security Indicator Security indicator light

ON or OFF

DTC Code

Detection Item

Trouble Area

B2780

Push Switch / Key Unlock
Warning Switch Malfunction



Transponder key ECU



Unlock warning switch

2009 Toyota Tundra

2009 ACCESSORIES AND EQUIPMENT Engine Immobilizer - Tundra

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