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

System Description

SYSTEM DESCRIPTION 1. FRONT PASSENGER OCCUPANT CLASSIFICATION SYSTEM (a) General Description (1) The front passenger occupant detection ECU determines whether the front passenger seat is occupied ...

Diagnosis System

DIAGNOSIS SYSTEM 1. CHECK DLC3 (a) The vehicle's ECU uses the ISO 9141-2 for communication protocol. The terminal arrangement of the DLC3 complies with SAE J1962 and matches the ISO 15765-4 fo ...

Other materials:

Diagnostic Trouble Code Chart
DIAGNOSTIC TROUBLE CODE CHART Smart Key System DTC Code Detection Item See page B27A1 Open in Driver Side Electrical Antenna Circuit B27A5 Open in Front Floor Electrical Key Oscillator Circuit ...

Four-wheel drive system
Use the front-wheel drive control switch to select the following transfer modes. H2 (high speed position, two-wheel drive) Use this for normal driving on dry hard-surfaced roads. This position gives greater economy, quietest ride and least wear. H4 (high speed position, four-wheel drive) ...

Ptc Heater Relay
Components COMPONENTS ILLUSTRATION Inspection INSPECTION PROCEDURE 1. INSPECT PTC HEATER RELAY (a) Check the resistance. (1) Measure the resistance according to the value(s) in the table below. Standard Resistance: Tester Connection C ...