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 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:
System Diagram
SYSTEM DIAGRAM
Communication Table
Transmitting ECU (Transmitter)
Receiving ECU (Receiver)
Signal
Line
Certification ECU
(Smart Key ECU Assembly)
Main Body ECU
(Multiplex Network Body ECU)
...
Diagnostic Trouble Code Chart
DIAGNOSTIC TROUBLE CODE CHART
Charging System
DTC Code
Detection Item
Warning Indicate
Memory
SAE
See page
P161A87
Lost Communication with Alternator Missing Message
-
DTC stored
...
Precaution
PRECAUTION
1. PRECAUTIONS WHEN USING TECHSTREAM
(a) When using the Techstream with the engine switch off to troubleshoot: Connect
the Techstream to the DLC3, and turn a courtesy light switch on and off at 1.5 second
or less intervals until communication between the Techstream and vehicle begin ...
