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:
Low Power Supply Voltage Malfunction (C1241)
DESCRIPTION
If there is a problem with the skid control ECU (master cylinder solenoid) power
supply circuit, the skid control ECU outputs the DTC and prohibits operation under
the fail-safe function.
If the voltage supplied to terminal IG1 is not within the DTC detection threshold
due to mal ...
Installation
INSTALLATION
CAUTION / NOTICE / HINT
CAUTION:
Be sure to perform this procedure with several people as the transfer assembly
is very heavy.
PROCEDURE
1. INSTALL TRANSFER CASE LOWER PROTECTOR
(a) Install the transfer case lower protector with the 4 bolts.
Torque:
18 N·m {184 kgf·cm, 13 f ...
Four Wheel Drive (4WD) Range Signal Circuit Range / Performance (P279E)
DESCRIPTION
When the transfer position switch is switched, the 2-4 terminal and LO terminal
change to one of the following ON/OFF combinations listed in the table below.
Terminal
2WD
Between 2WD and H4
H4
Between H4 and L4
L4
...
