Toyota Tacoma 2015-2018 Service Manual: Front Right Seat Heat Sensor Circuit (B14C0)
DESCRIPTION
Output to the front seat cushion heater assembly RH temperature sensor stops if one of the following occurs: 1) the temperature sensor is open or shorted; or 2) the temperature sensor is damaged and its output value does not change.
|
DTC Code |
DTC Detection Condition |
Trouble Area |
|---|---|---|
|
B14C0 |
Seat heater temperature sensor malfunction |
|
WIRING DIAGRAM
PROCEDURE
|
1. |
CLEAR DTC |
(a) Clear the DTCs (See page .gif)
).
|
.gif)
|
2. |
CHECK FOR DTC |
(a) Check for DTCs (See page ).
OK:
DTC B14C0 is not output.
| OK | .gif) |
USE SIMULATION METHOD TO CHECK |
|
|
3. |
READ VALUE USING TECHSTREAM |
(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 Conditioner / Data List.
(e) Check the value(s) by referring to the table below.
Air Conditioner:
|
Tester Display |
Measurement Item/Range |
Normal Condition |
Diagnostic Note |
|---|---|---|---|
|
FR Seat Heater Temperature |
Front seat RH side seat heater temperature / min: -29.7°C or max: 59.55°C |
Within range from 36 to 42.2°C (96 to 108°F) |
Front seat heater is on |
OK:
The display is as specified in the normal condition column.
Result|
Result |
Proceed to |
|---|---|
|
NG |
A |
|
OK |
B |
| B | |
REPLACE AIR CONDITIONING AMPLIFIER ASSEMBLY |
|
|
4. |
INSPECT FRONT SEAT CUSHION HEATER ASSEMBLY RH |
(a) Remove the front seat cushion heater assembly RH (See page
).
(b) Inspect the front seat cushion heater assembly RH (See page
).
| NG | |
REPLACE FRONT SEAT CUSHION HEATER ASSEMBLY RH |
|
|
5. |
CHECK HARNESS AND CONNECTOR (AIR CONDITIONING AMPLIFIER ASSEMBLY - FRONT SEAT CUSHION HEATER ASSEMBLY RH) |
(a) Disconnect the A35 and A36 air conditioning amplifier assembly connector.
(b) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
|
Tester Connection |
Condition |
Specified Condition |
|---|---|---|
|
A36-31 (TSR) - S41-2 (TH) |
Always |
Below 1 Ω |
|
A35-15 (SG-2) - S41-6 (E) |
Always |
Below 1 Ω |
|
A36-31 (TSR) - Body ground |
Always |
10 kΩ or higher |
|
A35-15 (SG-2)) - Body ground |
Always |
10 kΩ or higher |
| OK | |
REPLACE AIR CONDITIONING AMPLIFIER ASSEMBLY |
| NG | |
REPAIR OR REPLACE HARNESS OR CONNECTOR |
Diagnostic Trouble Code Chart
DIAGNOSTIC TROUBLE CODE CHART
HINT:
If a trouble code is displayed during the DTC check, inspect the trouble areas
listed for that code. For details of the code, refer to the "See page" ...
Front Left Seat Heat Sensor Circuit (B14C1)
DESCRIPTION
Output to the front seat cushion heater assembly LH temperature sensor stops
if one of the following occurs: 1) the temperature sensor is open or shorted; or
2) the temperature sensor ...
Other materials:
System Description
SYSTEM DESCRIPTION
1. GENERAL
(a) The air conditioning system has the following controls.
Control
Outline
Manual Control
The air conditioner amplifier assembly controls the damper positions
(air inlet control damper, air mix control damper and ...
Rear Body Side Panel Protector
Components
COMPONENTS
ILLUSTRATION
ILLUSTRATION
Installation
INSTALLATION
CAUTION / NOTICE / HINT
HINT:
Use the same procedure for the RH side and LH side.
The following procedure is for the LH side.
PROCEDURE
1. INSTALL REAR BODY SIDE PANEL PROTECTOR
(a) for Sho ...
Wheels
If a wheel is bent, cracked or heavily corroded, it should be replaced.
Otherwise, the tire may separate from the wheel or cause loss of handling control.
■ Wheel selection
When replacing wheels, care should be taken to ensure that they are equivalent
to those removed in load capacity, di ...
