Toyota Venza: Terminals Of Ecu
TERMINALS OF ECU
1. CHECK SLIDING ROOF ECU (SLIDING ROOF DRIVE GEAR SUB-ASSEMBLY)
(a) Disconnect the P4 ECU 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 |
|---|---|---|---|---|
|
P4-1 (B) - P4-2 (E) |
R - W-B |
Battery power supply |
Always |
11 to 14 V |
|
P4-5 (IG) - P4-2 (E) |
L - W-B |
Ignition switch power supply |
Ignition switch off |
Below 1 V |
|
P4-5 (IG) - P4-2 (E) |
L - W-B |
Ignition switch power supply |
Ignition switch ON |
11 to 14 V |
|
P4-2 (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 P4 ECU connector.
(d) Measure the voltage according to the value(s) in the table below.
|
Tester Connection |
Wiring Color |
Terminal Description |
Condition |
Specified Condition |
|---|---|---|---|---|
|
P4-7 (OPN) - P4-2 (E) |
GR - W-B |
Sliding roof motor open |
Ignition switch ON, SLIDE OPEN switch on |
Below 1 V |
|
P4-7 (OPN) - P4-2 (E) |
GR - W-B |
Sliding roof motor open |
Ignition switch ON, SLIDE OPEN switch off |
11 to 14 V |
|
P4-9 (CLS) - P4-2 (E) |
BR - W-B |
Sliding roof motor close |
Ignition switch ON, SLIDE CLOSE switch on |
Below 1 V |
|
P4-9 (CLS) - P4-2 (E) |
BR - W-B |
Sliding roof motor close |
Ignition switch ON, SLIDE CLOSE switch off |
11 to 14 V |
|
P4-10 (UP) - P4-2 (E) |
LG - W-B |
Sliding roof motor up |
Ignition switch ON, TILT UP switch on |
Below 1 V |
|
P4-10 (UP) - P4-2 (E) |
LG - W-B |
Sliding roof motor up |
Ignition switch ON, TILT UP switch off |
11 to 14 V |
|
P4-8 (DWN) - P4-2 (E) |
R - W-B |
Sliding roof motor down |
Ignition switch ON, TILT DOWN switch on |
Below 1 V |
|
P4-8 (DWN) - P4-2 (E) |
R - W-B |
Sliding roof motor down |
Ignition switch ON, TILT 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 have a malfunction.
Diagnosis System
DIAGNOSIS SYSTEM
1. DESCRIPTION
(a) Sliding roof system data and Diagnostic Trouble Codes (DTCs) can be read
through the vehicle Data Link Connector 3 (DLC3). When the system seems to be malfuncti ...
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 about Toyota Venza:
Removal
REMOVAL
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
).
NOTICE:
Be sure to read "Precaution" thorou ...
Inspection
INSPECTION
PROCEDURE
1. INSPECT PARK/NEUTRAL POSITION SWITCH ASSEMBLY
(a) Measure the resistance according to the value(s) in the table below
when the shift lever is moved to each position.
Text in Illustration
*1
...
Open / Short in Steering Lock ECU (B2781)
DESCRIPTION
If the steering lock ECU (steering lock actuator assembly) determines that there
is a malfunction inside the ECU, it outputs this DTC. Diagnostic communication between
the steering lock ECU (steering lock actuator assembly) and the Techstream ...
0.1732