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:
Removal
REMOVAL
PROCEDURE
1. REMOVE AUTOMATIC TRANSMISSION ASSEMBLY (for Automatic Transmission)
Transmission
See page
AC60E
AC60F
2. REMOVE MANUAL TRANSMISSION ASSEMBLY (for Manual Transmission)
(See page )
...
Parts Location
PARTS LOCATION
ILLUSTRATION
ILLUSTRATION
ILLUSTRATION
ILLUSTRATION
...
Sound Quality is Bad Only when CD is Played (Volume is Too Low)
PROCEDURE
1.
REPLACE CD AND RECHECK
(a) Replace the CD with a known good one and check that the malfunction disappears.
OK:
Malfunction disappears.
OK
END
NG
REPLACE RADIO AND DISPLAY RECEIVER ASSEMBLY
...
