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.
|
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 |
- |
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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:
Inspection
INSPECTION
PROCEDURE
1. INSPECT REAR NO. 2 POWER WINDOW REGULATOR SWITCH ASSEMBLY
*a
Component without harness connected
(Rear No. 2 Power Window Regulator Switch Assembly)
*b
Pull (Close)
*c
Push (Open)
...
Diagnosis System
DIAGNOSIS SYSTEM
1. DESCRIPTION
(a) The transponder key ECU assembly controls the engine immobiliser system.
The engine immobiliser system data and Diagnostic Trouble Codes (DTCs) can be read
through the vehicle Data Link Connector 3 (DLC3).
2. CHECK DLC3
(a) Check the DLC3 (See page ).
3. ...
Brake System (P157800)
DESCRIPTION
This DTC is output when the VSC system has a problem. Check the VSC system when
this DTC is output.
DTC No.
DTC Detection Condition
Trouble Area
MIL
Note
P157800
Diagnosis Condition:
Cr ...
