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:
Front Camera Module Beam Axis Not Adjusted (C1AA9)
DESCRIPTION
If forward recognition camera adjustment has not been performed or did not complete
normally after the forward recognition camera was replaced with a new one, DTC C1AA9
will be stored.
DTC No.
Detection Item
DTC Detection Condition
Troubl ...
Pressure Control Solenoid "D" Performance (Shift Solenoid Valve SLT) (P2714)
SYSTEM DESCRIPTION
The shift solenoid valve SLT controls the transmission line pressure for smooth
transmission operation based on signals from the throttle position sensor and the
vehicle speed sensor. The ECM adjusts the current to shift solenoid valve SLT to
control hydraulic line pressure ...
Steering Angle Sensor Power Source Voltage Malfunction (C1432)
DESCRIPTION
Steering angle sensor (spiral cable with sensor sub-assembly) signals are sent
to the skid control ECU (master cylinder solenoid) via the CAN communication system.
When there is a malfunction in the CAN communication system, it is detected by the
steering angle sensor zero point m ...
