Toyota Tacoma manuals

Toyota Tacoma 2015-2018 Service Manual: Data List / Active Test

DATA LIST / ACTIVE TEST

1. 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.

NOTICE:

In the table below, the values listed under "Normal Condition" are reference values. Do not depend solely on these reference values when deciding whether a part is faulty or not.

(a) Connect the Techstream to the DLC3.

(b) Turn the ignition switch to ON.

(c) Turn the Techstream on.

(d) Enter the following menus: Body Electrical / Immobiliser / Data List.

(e) Read the Data List according to the display on the Techstream.

Immobiliser

Tester Display

Measurement Item/Range

Normal Condition

Diagnostic Note

D Door Courtesy SW

Driver door courtesy light switch signal / OFF or ON

OFF: Driver door closed

ON: Driver door open

-

Key SW

Unlock warning switch signal / OFF or ON

OFF: No key in ignition key cylinder

ON: Key inserted in ignition key cylinder

-

IG SW*2

Ignition switch signal / ON or OFF

ON: Ignition switch ON

OFF: Ignition switch ACC or off

-

Immobiliser*2

Engine immobiliser system status determined by transponder key ECU assembly / Set or Unset

Set: Engine immobiliser set (engine start prohibited [no key in ignition key cylinder])

Unset: Engine immobiliser unset (engine start permitted [key inserted in ignition key cylinder])

When the engine immobiliser system does not change to the unset state, this item can be used to determine if the cause is the transponder key ECU assembly.

Response

Key response to signal from transponder key ECU assembly / OK or NG

OK: Key responds to signal from transponder key ECU assembly

NG: Key does not respond to signal from transponder key ECU assembly

Problems may be caused by the following:

  • A key from a different vehicle is being used.
  • Malfunctions in the key, transponder key ECU assembly or transponder key coil.

Frame Error

State of data sent from key / OK or NG

OK: No problem with data sent from key

NG: Problem with data sent from key

Problems may be caused by the following:

  • Communication errors due to external electric wave noise.
  • Malfunctions in the key, transponder key ECU assembly or transponder key coil.

Different Serial Number*1

Vehicle serial number / OK or NG

OK: Signal from transponder chip and vehicle serial number stored in transponder key ECU assembly match

NG: Signal from transponder chip and vehicle serial number stored the transponder key ECU assembly do not match

Problems may be caused by the following:

  • A key from a different vehicle is being used.
  • Malfunctions in the key, transponder key ECU assembly or transponder key coil.

Different Encrypt Code*1

Code status between transponder chip and transponder key ECU assembly / OK or NG

OK: Codes of transponder chip and transponder key ECU assembly match

NG: Codes of transponder chip and transponder key ECU assembly do not match

Problems may be caused by the following:

  • A key from a different vehicle is being used.
  • Malfunctions in the key, transponder key ECU assembly or transponder key coil.

Abnormal Status*1

Transponder chip status signal / OK or NG

OK: Transponder chip status signal normal

NG: Transponder chip status signal malfunction (malfunction in code computation in key/transponder key ECU assembly)

Problems may be caused by the following:

  • Communication errors due to external electric wave noise (LF).
  • Malfunctions in the key, transponder key ECU assembly or transponder key coil.

Bcc Malfunction*1

Bcc signal status of transponder chip / OK or NG

OK: Bcc signal normal

NG: Bcc signal malfunction (malfunction in code computation in key/transponder key ECU assembly)

Problems may be caused by the following:

  • Communication errors due to external electric wave noise (LF).
  • Malfunctions in the key, transponder key ECU assembly or transponder key coil.

Sub Key

Not available / Unreg or Reg

-

-

Master Key

Whether master key ID code matches ID code registered in transponder key ECU assembly / Unreg or Reg

Unreg: ID code of master key does not match ID code registered in transponder key ECU assembly

Reg: ID code of master key matches ID code registered in transponder key ECU assembly

-

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 / No or Yes

Yes: Cannot register any more key codes

No: Possible to register more key codes

-

+B

+B judgment / Normal or Break

Normal: Battery power supply normal

Break: Battery power supply malfunctioning

-

Antenna Coil Status

Antenna coil condition / Normal or Fail

Normal: Antenna coil normal

Fail: Antenna coil malfunctioning

-

EEPROM Status

EEPROM status / OK or NG

OK: Data OK

NG: Data error

-

E/G Start Permission*2

Engine start permission / NG or OK

NG: Engine start not permitted

OK: Engine start permitted

-

Immobi ECU Comm Spd

Immobiliser ECU communication speed / Unknown, 50bps, No Res or 200bps

Unknown: ECU communication speed unknown

50bps: ECU communication speed 50 bps

No Res: No response regarding ECU communication speed

200bps: ECU communication speed 200 bps

-

The Number of DTCs

Number of DTCs / Min.: 0, Max.: 255

Number of stored DTCs

-

HINT:

  • *1: This indicates that there is a problem with the communication format between the key and transponder key ECU assembly. Electric wave interference, key or transponder key ECU assembly malfunctions, the key of another vehicle being used, etc. are possible causes.
  • *2: Refer to the following Data List items of an actual vehicle.
  • *1: Without depressing the brake pedal (for Automatic Transmission) or clutch pedal (for Manual Transmission), insert the key into the ignition key cylinder and turn the ignition switch to ACC.
  • *2: Without depressing the brake pedal (for Automatic Transmission) or clutch pedal (for Manual Transmission), turn the ignition switch to ON.
  • *3: Turn the ignition switch off and remove the key from the ignition key cylinder.

(f) Enter the following menus: Powertrain / Engine or Engine and ECT / Data List.

(g) Read the Data List according to the display on the Techstream.

Engine (for 2GR-FKS)

Tester Display

Measurement Item/Range

Normal Condition

Diagnostic Note

Immobiliser Fuel Cut

Status of immobiliser fuel cut / ON or OFF

-

-

Engine and ECT (for 2TR-FE)

Tester Display

Measurement Item/Range

Normal Condition

Diagnostic Note

Immobiliser Fuel Cut

Status of immobiliser fuel cut / ON or OFF

-

-

2. 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 to ON.

(c) Turn the Techstream on.

(d) Enter the following menus: Body Electrical / Immobiliser or Main Body / Active Test.

(e) Perform the Active Test according to the display on the Techstream.

Immobiliser

Tester Display

Test Part

Control Range

Diagnostic Note

Security Indicator

Security indicator light

ON/OFF

-

Main Body (w/ Theft Deterrent System)

Tester Display

Test Part

Control Range

Diagnostic Note

Security Indicator

Security indicator light

OFF/ON

-

Dtc Check / Clear
DTC CHECK / CLEAR 1. CHECK FOR TRANSPONDER KEY ECU ASSEMBLY DTC (a) Connect the Techstream to the DLC3. (b) Turn the ignition switch to ON. (c) Turn the Techstream on. (d) Enter the following men ...

Diagnostic Trouble Code Chart
DIAGNOSTIC TROUBLE CODE CHART HINT: If a trouble code is stored during the DTC check, inspect the trouble areas listed for that code. For details of the code, refer to "See page" below. ...

Other materials:

Rear Power Outlet Switch
Components COMPONENTS ILLUSTRATION Inspection INSPECTION PROCEDURE 1. INSPECT MAIN SWITCH ASSEMBLY (a) Check the main switch assembly. (1) Measure the resistance according to the value(s) in the table below. Text in Illustration *a Com ...

Removal
REMOVAL PROCEDURE 1. REMOVE INTAKE MANIFOLD (See page ) 2. REMOVE WIRE HARNESS CLAMP BRACKET (a) Remove the 2 bolts and wire harness clamp bracket. 3. REMOVE FUEL TUBE SUB-ASSEMBLY (a) Disconnect the fuel tube sub-assembly from ...

Engine Switch
Components COMPONENTS ILLUSTRATION Inspection INSPECTION PROCEDURE 1. INSPECT ENGINE SWITCH (a) Measure the resistance according to the value(s) in the table below. Text in Illustration *a Component without harness connected (Engine Switch) - ...

В© 2011-2020 Copyright www.ttguide.net