Toyota Venza: Terminals Of Ecu
TERMINALS OF ECU
1. TCM
HINT:
Each TCM terminal standard voltage is shown in the table below.
In the table, first follow the information under "Condition". Look under "Terminal No. (Symbol)" for the terminals to be inspected. The standard voltage between the terminals is shown under "Specified Condition".
Use the illustration above as a reference for the TCM terminals.
|
Terminal No. (Symbol) |
Wiring Color |
Terminal Description |
Condition |
Specified Condition |
|---|---|---|---|---|
|
B40-15 (R) - B40-8 (E1) |
G - B |
R shift position switch signal |
Ignition switch ON and shift lever in R |
11 to 14 V |
|
Ignition switch ON and shift lever in any position except R |
Below 1 V |
|||
|
B40-16 (D) - B40-8 (E1) |
LG - B |
D shift position switch signal |
Ignition switch ON and shift lever in D and S |
11 to 14 V |
|
Ignition switch ON and shift lever in any position except D and S |
Below 1 V |
|||
|
B40-12 (STP) - B40-8 (E1) |
P - B |
Stop light switch signal |
Brake pedal is depressed |
7.5 to 14 V |
|
Brake pedal is released |
Below 1.5 V |
|||
|
B40-11 (NSW) - B40-8 (E1) |
GR - B |
Park/neutral switch signal |
Ignition switch ON and shift lever in P or N |
Below 2 V |
|
Ignition switch ON and shift lever in any position except P or N |
11 to 14 V |
|||
|
B40-10 (STA) - B40-8 (E1) |
V - B |
Starter signal |
Cranking (shift lever in P or N, engine switch START) |
11 to 14 V |
|
Ignition switch ON and shift lever in any position except P or N |
Below 2 V |
|||
|
B40-3 (SPD) - B40-8 (E1) |
L - B |
Speed signal from combination meter |
Vehicle speed 20 km/h (12 mph) |
Pulse generation (see waveform 1) |
|
B40-1 (BATT) - B40-8 (E1) |
W-L - B |
Battery (for measuring battery voltage and for TCM memory) |
Always |
9 to 14 V |
|
B40-13 (IGSW) - B40-8 (E1) |
Y - B |
Ignition switch |
Ignition switch ON |
9 to 14 V |
|
B40-18 (+B) - B40-8 (E1) |
Y - B |
Power source of TCM |
Ignition switch ON |
9 to 14 V |
|
B40-6 (CAN+) - B40-8 (E1) |
R - B |
CAN communication line |
Ignition switch ON |
Pulse generation (see waveform 2) |
|
B40-7 (CAN-) - B40-8 (E1) |
W - B |
CAN communication line |
Ignition switch ON |
Pulse generation (see waveform 3) |
(a) Waveform 1
Reference
|
Terminal |
SPD - E1 |
|
Tool setting |
2 V/DIV., 20 ms./DIV. |
|
Vehicle condition |
Vehicle speed 20 km/h (12 mph) |
(b) Waveform 2
Reference
|
Terminal |
CAN+ - E1 |
|
Tool setting |
1 V/DIV., 10 ms./DIV. |
|
Vehicle condition |
Engine is stopped, ignition switch ON |
(c) Waveform 3
Reference
|
Terminal |
CAN- - E1 |
|
Tool setting |
1 V/DIV., 10 ms./DIV. |
|
Vehicle condition |
Engine is stopped, ignition switch ON |
2. ECM
HINT:
Each ECM terminal standard voltage is shown in the table below.
In the table, first follow the information under "Condition". Look under "Terminal No. (Symbol)" for the terminals to be inspected. The standard voltage between the terminals is shown under "Specified Condition".
Use the illustration below as a reference for the ECM terminals.
|
Terminal No. (Symbol) |
Wiring Color |
Terminal Description |
Condition |
Specified Condition |
|---|---|---|---|---|
|
A41-25 (S) - B39-81 (E1) |
BE - W |
S shift position switch signal |
Ignition switch ON and shift lever in S |
11 to 14 V |
|
Ignition switch ON and shift lever in any position except S |
Below 1 V |
|||
|
A41-38 (SFTU) - B39-81 (E1) |
R - W |
Up shift switch signal |
Ignition switch ON and shift lever in S |
11 to 14 V |
|
Ignition switch ON and shift lever in "+" (Up shift) |
Below 1 V |
|||
|
A41-27 (SFTD) - B39-81 (E1) |
LG - W |
Down shift switch signal |
Ignition switch ON and shift lever in S |
11 to 14 V |
|
Ignition switch ON and shift lever in "-" (Down shift) |
Below 1 V |
Diagnosis System
DIAGNOSIS SYSTEM
1. DESCRIPTION
(a) When troubleshooting On-Board Diagnostic (OBD II) vehicles, the vehicle must
be connected to the OBD II scan tool (complying with SAE J1987). Various data outpu ...
Dtc Check / Clear
DTC CHECK / CLEAR
NOTICE:
When the diagnosis system is changed from normal mode to check mode or vice versa,
all DTCs and freeze frame data recorded in normal mode are cleared. Before changing
m ...
Other materials about Toyota Venza:
Installation
INSTALLATION
PROCEDURE
1. INSTALL NO. 1 FUEL TANK CUSHION
(a) Install 8 new No. 1 fuel tank cushions to the fuel tank.
2. INSTALL FUEL MAIN TUBE SUPPORT
(a) Install the fuel main tube su ...
Reassembly
REASSEMBLY
PROCEDURE
1. INSTALL NO. 2 STEERING RACK BOOT
(a) Apply lithium soap base glycol grease to the inside of the small
opening of a new No. 2 steering rack boot.
(b) Install the No. 2 ste ...
How To Proceed With Troubleshooting
CAUTION / NOTICE / HINT
HINT:
Use the following procedure to troubleshoot the wiper and washer system.
PROCEDURE
1.
VEHICLE BROUGHT TO WORKSHOP
NEXT
...
0.1719