Toyota Tacoma (2015-2018) Service Manual: Problem Symptoms Table

Toyota Tacoma (2015-2018) Service Manual / Seat / Seat Heater System / 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:

Removal
REMOVAL CAUTION / NOTICE / HINT HINT: Use the same procedure for the LH side and RH side. The following procedure listed is for the LH side. PROCEDURE 1. REMOVE FRONT WHEEL 2. DRAIN BRAKE FLUID NOTICE: Immediately wash off any brake fluid that comes into contact with any pa ...

Sliding Roof does not Move by Operating Sliding Roof Control Switch
DESCRIPTION The sliding roof ECU (sliding roof drive gear sub-assembly) receives slide and tilt signals when the sliding roof switch is operated and drives its built-in motor. WIRING DIAGRAM CAUTION / NOTICE / HINT NOTICE: Inspect the fuses for circuits related to this system before ...

Noise Occurs or Sound Skips when Portable Player Plays
CAUTION / NOTICE / HINT HINT: Perform this check with the portable player volume set at an appropriate level. Make sure that there are no obstructions between the portable player and navigation receiver assembly that may block signals, and that the portable player and navig ...