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:
Components
COMPONENTS
ILLUSTRATION
*A
w/o Woofer
*B
w/ Woofer
*1
LUGGAGE COMPARTMENT SIDE TRAY LH
*2
LUGGAGE COMPARTMENT SIDE TRAY RH
ILLUSTRATION
*1
COWL SIDE TRIM BOARD LH
...
Inspection
INSPECTION
PROCEDURE
1. INSPECT PARK/NEUTRAL POSITION SWITCH
(a) Measure the resistance according to the value(s) in the table below.
Text in Illustration
*a
Component without harness connected
(Park/Neutral Position Switch)
...
Steering Angle Sensor Communication Stop Mode
DESCRIPTION
Detection Item
Symptom
Trouble Area
Steering Angle Sensor Communication Stop Mode
Either condition is met:
Communication stop for "Spiral cable (Steering Angle Sensor)"
is indicated on the "C ...
