Toyota Tacoma (2015-2018) Service Manual: System Description
SYSTEM DESCRIPTION
1. FRONT SEAT HEATER
(a) By operating the seat heater switch on the air conditioning control assembly, the temperature can be controlled within the range of 36 to 42.2°C (96 to 108°F).
(b) The on/off status and heater level of each seat heater are indicated by the respective indicators provided in the air conditioning control assembly.
(c) The seat heaters of both seats are controlled by the seat heater control sub-assemblies.
Operation Check
OPERATION CHECK
1. CHECK SEAT HEATER
(a) Turn the ignition switch to ON.
(b) Check that the indicator illuminates and the surface of the front seat warms
up, when the seat heater switch on the ai ...
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 ...
Other materials:
Lost Communication with Alternator Missing Message (P161A87)
DESCRIPTION
The ECM communicates with the generator assembly via LIN communication. If a
LIN communication error is detected, the ECM stores this DTC.
DTC No.
DTC Detection Condition
Trouble Area
P161A87
Generator assembly or ECM commu ...
Master Cylinder Pressure Sensor Output Malfunction (Test Mode DTC) (C1281,...,C1458)
DESCRIPTION
DTC Code
DTC Detection Condition
Trouble Area
C1281
Stored only during test mode.
Master cylinder pressure sensor circuit
Skid control ECU, master cylinder pressure sensor (master cylinder
s ...
Stop Light Relay Circuit (C1A4B)
DESCRIPTION
The skid control ECU (master cylinder solenoid)*1 or skid control ECU (brake
actuator assembly)*2 sends a stop light operation request signal to the stop light
relay (stop light switch assembly). If the skid control ECU (master cylinder solenoid)*1
or skid control ECU (brake actua ...
