Toyota Tacoma manuals

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

(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

  • Ignition switch ON
  • Seat heater switch (for Front Passenger Side) on

Below 1 V

A35-23 (SHD+) - Body ground

R - Body ground

Seat heater (for Driver Side) drive signal

  • Ignition switch ON
  • Seat heater switch (for Driver Side) on

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 Data List / Active Test ).

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:

Side Turn Signal Light Assembly
Components COMPONENTS ILLUSTRATION Removal REMOVAL CAUTION / NOTICE / HINT HINT: Use the same procedure for both the RH and LH sides. The procedure described below is for the LH side. PROCEDURE 1. REMOVE OUTER REAR VIEW MIRROR ASSEMBLY (See page ) 2. REMOVE OUTER ...

Removal
REMOVAL PROCEDURE 1. REMOVE FRONT CONSOLE BOX (See page ) 2. DISCONNECT TRANSMISSION CONTROL CABLE ASSEMBLY (a) Move the shift lever to N. (b) Disconnect the end of the transmission control cable assembly from the transmission floor shift assembly. Text in Illustration ...

Front Camera Module Circuit (C1AA0)
DESCRIPTION The millimeter wave radar sensor assembly receives information about the area in front of the vehicle from the forward recognition camera. If the millimeter wave radar sensor assembly detects a malfunction in the forward recognition camera, it will store DTC C1AA0. DTC ...

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