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:

Disassembly
DISASSEMBLY PROCEDURE 1. REMOVE PRESSURE RELIEF VALVE (a) Remove the pressure relief valve and O-ring. 2. REMOVE MAGNET CLUTCH ASSEMBLY (a) Secure the cooler compressor assembly in a vise between aluminum plates. (b) Using SST, hold the magnet clutch hub. SST: 09985-00260 (c) Remove the ...

Power Supply Drive Circuit (C1257)
DESCRIPTION The motor relay (semiconductor relay) is built into the hydraulic brake booster and drives the pump motor based on a signal from the skid control ECU (master cylinder solenoid). DTC No. DTC Detecting Condition Trouble Areas C1257 ...

Front Door Courtesy Switch
Inspection INSPECTION PROCEDURE 1. INSPECT FRONT DOOR COURTESY SWITCH (a) Check the resistance. (1) Measure the resistance using an ohmmeter, and check the results in accordance with the value( s) in the table below. Standard: Tester Connection Condition ...