Toyota Tacoma manuals

Toyota Tacoma 2015-2018 Service Manual: Problem Symptoms Table

PROBLEM SYMPTOMS TABLE

HINT:

  • Use the table below to help determine the cause of problem symptoms. If multiple suspected areas are listed, the potential causes of the symptoms are listed in order of probability in the "Suspected Area" column of the table. Check each symptom by checking the suspected areas in the order they are listed. Replace parts as necessary.
  • Inspect the fuses and relays related to this system before inspecting the suspected areas below.
Seat Heater System

Symptom

Suspected Area

See page

Seat heater does not operate for driver side and front passenger side seat

Harness and connector

-

Air conditioning control assembly

Air conditioning amplifier assembly

Front seat heater does not operate (for driver)

Driver side seat heater does not operate

Air conditioning control assembly

Front seat cushion heater assembly LH

Front seatback heater assembly LH

Wire harness or connector

-

Front seat heater does not operate (for front passenger)

Front passenger side seat heater does not operate

Air conditioning control assembly

Front seat cushion heater assembly RH

Front seatback heater assembly RH

Wire harness or connector

-

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 / Air Conditi ...

Terminals Of Ecu
TERMINALS OF ECU 1. CHECK AIR CONDITIONING AMPLIFIER ASSEMBLY (a) Disconnect the A36 air conditioning amplifier assembly connector. (b) Measure the voltage and resistance according to the value(s ...

Other materials:

Precaution
PRECAUTION 1. IGNITION SWITCH EXPRESSIONS (a) The type of ignition switch used on this model differs according to the specifications of the vehicle. The expressions listed in the table below are used in this section. Expression Ignition Switch (Position) Engine ...

Replacement
REPLACEMENT CAUTION / NOTICE / HINT CAUTION: Prolonged and repeated contact with engine oil will result in the removal of natural oils from the skin, leading to dryness, irritation and dermatitis. In addition, used engine oil contains potentially harmful contaminants which may ...

Removal
REMOVAL CAUTION / NOTICE / HINT HINT: Use the same procedure for the RH and LH sides. The procedure described below is for the LH side. PROCEDURE 1. REMOVE FRONT DOOR GLASS RUN 2. REMOVE FRONT DOOR GLASS OUTER WEATHERSTRIP ASSEMBLY (See page ) 3. REMOVE NO. 1 BLAC ...

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