Toyota Tacoma manuals

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

DIAGNOSIS SYSTEM

1. DESCRIPTION

(a) Smart key system (for entry function) data and Diagnostic Trouble Codes (DTCs) can be read through the vehicle Data Link Connector 3 (DLC3). In some cases, a malfunction may be occurring in the smart key system. 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 vehicle battery voltage.

Standard Voltage:

11 to 14 V

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

Problem Symptoms Table
PROBLEM SYMPTOMS TABLE HINT: If a problem occurs in certain locations or at certain times of day, check for the possibility of wave interference. When the electrical key transmitter ...

Terminals Of Ecu
TERMINALS OF ECU 1. CHECK CERTIFICATION ECU (SMART KEY ECU ASSEMBLY) (a) Disconnect the C27 and C29 certification ECU (smart key ECU assembly) connectors. (b) Measure the voltage and resistance a ...

Other materials:

Dtc Check / Clear
DTC CHECK / CLEAR 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: Chassis / LKA/LDA / Trouble Codes. (e) Check for DTCs. Click here CLEAR DTC (a) Connect the Techstream to the DLC3. (b) Turn ...

Security Horn Assembly
Components COMPONENTS ILLUSTRATION Inspection INSPECTION PROCEDURE 1. INSPECT SECURITY HORN ASSEMBLY (a) Check the operation. (1) Apply battery voltage and check operation of the security horn assembly. OK: Measurement Condition Spe ...

Rear Occupant Classification Sensor LH Collision Detection (B1787)
DESCRIPTION DTC B1787 is set when the occupant detection ECU receives a collision detection signal, which is sent by the occupant classification sensor rear LH when an accident occurs. DTC B1787 is also set when the front seat with adjuster frame assembly RH is subjected to a strong impact, ...

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