Toyota Tacoma manuals

Toyota Tacoma (2015-2018) Service Manual: Terminals Of Ecu

TERMINALS OF ECU

1. CHECK SLIDING ROOF ECU (SLIDING ROOF DRIVE GEAR SUB-ASSEMBLY)

(a) Disconnect the S50 sliding roof ECU (sliding roof drive gear sub-assembly) connector.

(b) Measure the resistance and voltage according to the value(s) in the table

(b) Measure the resistance and voltage 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

S50-8 (B) - S50-12 (E)

W - W-B

Battery power supply

Always

11 to 14 V

S50-1 (IG) - S50-12 (E)

BE - W-B

IG power supply

Ignition switch off

Below 1 V

S50-1 (IG) - S50-12 (E)

BE - W-B

IG power supply

Ignition switch ON

11 to 14 V

S50-12 (E) - Body ground

W-B - Body ground

Ground

Always

Below 1 Ω

If the result is not as specified, there may be a malfunction in the wire harness.

(c) Reconnect the S50 sliding roof ECU (sliding roof drive gear sub-assembly) connector.

(d) Measure the voltage according to the value(s) in the table below.

Tester Connection

Wiring Color

Terminal Description

Condition

Specified Condition

S50-7 (OPN) - S50-12 (E)

B - W-B

Sliding roof motor open

Ignition switch ON, OPEN switch on

Below 1 V

S50-7 (OPN) - S50-12 (E)

B - W-B

Sliding roof motor open

Ignition switch ON, OPEN switch off

11 to 14 V

S50-5 (CLS) - S50-12 (E)

SB - W-B

Sliding roof motor close

Ignition switch ON, CLOSE switch on

Below 1 V

S50-5 (CLS) - S50-12 (E)

SB - W-B

Sliding roof motor close

Ignition switch ON, CLOSE switch off

11 to 14 V

S50-4 (UP) - S50-12 (E)

LG - W-B

Sliding roof motor up

Ignition switch ON, UP switch on

Below 1 V

S50-4 (UP) - S50-12 (E)

LG - W-B

Sliding roof motor up

Ignition switch ON, UP switch off

11 to 14 V

S50-6 (DWN) - S50-12 (E)

L - W-B

Sliding roof motor down

Ignition switch ON, DOWN switch on

Below 1 V

S50-6 (DWN) - S50-12 (E)

L - W-B

Sliding roof motor down

Ignition switch ON, DOWN switch off

11 to 14 V

If the result is not as specified, the sliding roof ECU (sliding roof drive gear sub-assembly) may be malfunctioning.

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 CAUTION: Some of these service operations affect the SRS airbag system. Read the precautionary notices concerning the SRS airbag system before servicing (See page ). HINT: Use the same procedure for both the RH and LH sides. The procedure des ...

Wireless remote control battery
Replace the battery with a new one if it is discharged. ■ You will need the following items: Lithium battery CR2032 ■ Replacing the battery Remove the cover using a coin protected with tape etc. Remove the discharged transmitter battery. Insert a new battery with the “+” te ...

Acceleration Sensor Power Supply Voltage Malfunction (C1381)
DESCRIPTION The skid control ECU (brake actuator assembly) receives signals from the yaw rate and acceleration sensor (airbag sensor assembly) via the CAN communication system. The airbag sensor assembly has a built-in acceleration sensor and detects the vehicle condition. If there is troub ...

© 2011-2025 Copyright www.ttguide.net