Toyota Tacoma manuals

Toyota Tacoma (2015-2018) Service Manual: Diagnosis System

DIAGNOSIS SYSTEM

1. DESCRIPTION

The main body ECU (multiplex network body ECU) and certification ECU (smart key ECU assembly) control the LIN communication system. LIN communication system data and Diagnostic Trouble Codes (DTCs) can be read through the Data Link Connector 3 (DLC3).

When the system seems to be malfunctioning, use the Techstream to check for malfunctions and perform repairs.

2. CHECK DLC3

(a) Check the DLC3 (See page 3. INSPECT BATTERY VOLTAGE ).

3. INSPECT BATTERY VOLTAGE

(a) Measure the battery voltage.

Standard voltage:

11 to 14 V

  • If the voltage is below 11 V, recharge or replace the battery.
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 p ...

Dtc Check / Clear
DTC CHECK / CLEAR 1. CHECK DTC (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 / Smart Acces ...

Other materials:

Noise Filter(for 2gr-fks)
Components COMPONENTS ILLUSTRATION Removal REMOVAL PROCEDURE 1. DISCONNECT CABLE FROM NEGATIVE BATTERY TERMINAL 2. REMOVE V-BANK COVER (See page ) 3. REMOVE AIR CLEANER ASSEMBLY (See page ) 4. REMOVE RADIO SETTING CONDENSER (a) Disconnect the connector. (b) Remove the tape an ...

On-vehicle Inspection
ON-VEHICLE INSPECTION PROCEDURE 1. INSPECT REAR AIRBAG SENSOR (for Vehicle not Involved in Collision) (a) Perform a diagnostic system check (See page ). 2. INSPECT REAR AIRBAG SENSOR (for Vehicle Involved in Collision and Airbag has not Deployed) (a) Perform a diagnostic system check (See p ...

Passenger Side Buckle Switch Circuit Malfunction (B1771)
DESCRIPTION The passenger side buckle switch circuit consists of the occupant detection ECU and the front seat inner belt assembly RH. DTC B1771 is recorded when a malfunction is detected in the passenger side buckle switch circuit. Troubleshoot DTC B1771 first when DTCs B1771 and B1795 are o ...

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