Toyota Tacoma (2015-2018) Service Manual: 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) in the table below.
HINT:
Measure the values on the wire harness side with the connector disconnected.
|
Tester Connection |
Wiring Color |
Terminal Description |
Condition |
Specified Condition |
|---|---|---|---|---|
|
A36-17 (B) - Body ground |
LG - Body ground |
Air conditioning amplifier power supply |
Always |
11 to 14 V |
|
A36-1 (IG+) - Body ground |
GR - Body ground |
Air conditioning amplifier power supply |
Ignition switch ON |
11 to 14 V |
|
A36-10 (GND) - Body ground |
W-B - Body ground |
Air conditioning amplifier ground |
Always |
Below 1 Ω |
If the result is not as specified, there may be a malfunction on the wire harness side.
(c) Reconnect the A36 air conditioning amplifier assembly connector.
(d) Measure the voltage and resistance according to the value(s) in the table below.
(e) Check for pulse generation according to the value(s) in the table below.
|
Tester Connection |
Wiring Color |
Terminal Description |
Condition |
Specified Condition |
|---|---|---|---|---|
|
A35-24 (SHP+) - Body ground |
SB - Body ground |
Seat heater (for Front Passenger Side) drive signal |
|
Below 1 V |
|
A35-23 (SHD+) - Body ground |
R - Body ground |
Seat heater (for Driver Side) drive signal |
|
Below 1 V |
|
A36-11 (LIN1) - Body ground |
SB - Body ground |
Seat heater switch signal |
Ignition switch ON |
Pulse generation |
|
A36-31 (TSR) - A35-15 (SG-2) |
BE - P |
Seat heater sensor (for Front Passenger Side) input signal |
Ignition switch off (25°C [77°F]) |
10 kΩ |
|
A36-32 (TSL) - A35-15 (SG-2) |
V - P |
Seat heater sensor (for Driver Side) input signal |
Ignition switch off (25°C [77°F]) |
10 kΩ |
2. CHECK AIR CONDITIONING CONTROL ASSEMBLY
(a) Check the air conditioning control assembly (See page
.gif)
).
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 lis ...
Data List / Active Test
DATA LIST / ACTIVE TEST
1. DATA LIST
HINT:
Using the Techstream to read the Data List allows the values or states of switches,
sensors, actuators and other items to be read without removing any p ...
Other materials:
Installation
INSTALLATION
CAUTION / NOTICE / HINT
HINT:
The following procedures are for BD22 (w/ Differential Lock).
PROCEDURE
1. INSTALL REAR DIFFERENTIAL CARRIER ASSEMBLY
(a) Clean the contact surfaces of the rear differential carrier assembly and
axle housing.
(b) Install the rear differential carri ...
Diagnosis System
DIAGNOSIS SYSTEM
CHECK DLC3
(a) Check the DLC3.
Click here
FUNCTION OF WARNING INDICATOR AND MESSAGE
(a) If the pre-collision system is not functioning properly, the driver is warned
by the PCS warning light and a warning message displayed on the multi-information
display.
Mas ...
Disassembly
DISASSEMBLY
PROCEDURE
1. REMOVE FRONT BRAKE SHOE
(a) Using SST, remove the shoe return spring from the front brake shoe.
SST: 09921-00010
(b) Using needle-nose pliers, remove the return spring.
(c) Using SST, remove the shoe hol ...
