Toyota Venza: Fail-safe Chart
FAIL-SAFE CHART
1. Fail-safe
This function minimizes the loss of operation when any abnormality occurs in a sensor or solenoid.
Fail-safe Control List|
Malfunction Part |
Function |
|---|---|
|
Input Turbine Speed Sensor |
Shifting to only either 1st or 3rd gears is allowed. |
|
Counter Gear Speed Sensor |
|
|
ATF Temp. Sensor |
Shifting between 1st to 4th gears is allowed. |
|
ECT ECU Power Supply (Voltage is Low) |
When the vehicle is being driven in 6th gear, the transaxle is fixed in 6th gear. When being driven in any of 1st to 5th gears, the transaxle is fixed in 5th gear. |
|
CAN communication |
Shifting to only either 1st or 3rd gears is allowed. |
|
Knock Sensor |
Shifting between 1st to 4th gears is allowed. |
|
Solenoid Valve SL1, SL2, SL3 and SL4 |
The current to the failed solenoid valve is cut off and operating the other solenoid valves with normal operation performs shift control. (Shift controls in fail-safe mode are described in the table on the next page. For details, refer to Fail-Safe Control Chart) |
|
Gear |
1st |
2nd |
3rd |
4th |
5th |
6th |
|
|---|---|---|---|---|---|---|---|
|
Solenoid |
SL1 |
ON |
ON |
ON |
ON |
OFF |
OFF |
|
SL2 |
OFF |
OFF |
OFF |
ON |
ON |
ON |
|
|
SL3 |
OFF |
ON |
OFF |
OFF |
OFF |
ON |
|
|
SL4 |
OFF |
OFF |
ON |
OFF |
ON |
OFF |
|
|
Gear in Normal Conditions |
1st |
2nd |
3rd |
4th |
5th |
6th |
|
|---|---|---|---|---|---|---|---|
|
SL1 |
ON Malfunction (without Fail-safe Control)*1 |
1st |
2nd |
3rd |
4th |
4th |
4th |
|
OFF Malfunction (without Fail-safe Control) |
1st to N |
2nd to N |
3rd to N |
4th to N |
5th |
6th |
|
|
Fail-safe Control during OFF Malfunction |
Fixed in 3rd or 5th |
||||||
|
SL2 |
ON Malfunction (without Fail-safe Control)*1 |
1st to 4th |
2nd to 4th |
3rd to 4th |
4th |
5th |
6th |
|
OFF Malfunction (without Fail-safe Control) |
1st |
2nd |
3rd |
4th to 1st |
5th to N |
6th to N |
|
|
Fail-safe Control during OFF Malfunction |
Fixed in 2nd or 3rd |
||||||
|
SL3 |
ON Malfunction (without Fail-safe Control)*1 |
1st to 2nd |
2nd |
3rd |
4th |
5th |
6th |
|
OFF Malfunction (without Fail-safe Control) |
1st |
2nd to 1st |
3rd |
4th |
5th |
6th to N |
|
|
Fail-safe Control during OFF Malfunction |
Fixed in 3rd |
||||||
|
SL4 |
ON Malfunction (without Fail-safe Control)*1 |
3rd |
3rd |
3rd |
4th |
5th |
5th |
|
OFF Malfunction (without Fail-safe Control) |
1st |
2nd |
3rd to 1st |
4th |
5th to N |
6th |
|
|
Fail-safe Control during OFF Malfunction |
Fixed in 2nd |
||||||
*1: Fail-safe control is not actuated when an ON malfunction occurs.
Check Mode Procedure
CHECK MODE PROCEDURE
1. DESCRIPTION
(a) Check mode has a higher sensitivity to malfunctions and can detect malfunctions
that normal mode cannot detect. Check mode can also detect all the 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 ...
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On-vehicle Inspection
ON-VEHICLE INSPECTION
PROCEDURE
1. INSPECT WINDOW GLASS ANTENNA WIRE
(a) Check for continuity of the antenna.
HINT:
Check for continuity at the center of each antenna wire as shown in the
illustration.
N ...
Front Passenger Side Seat Belt Warning Light Malfunction
DESCRIPTION
The occupant classification ECU detects the state of the front seat inner belt
assembly RH and load sensor when the front passenger side seat is occupied with
the ignition switch ON. If the front passenger side seat belt is not fastened, the
...
Diagnosis Circuit
DESCRIPTION
This circuit is used to read the DTCs that are output from the transponder key
ECU assembly with the Techstream.
WIRING DIAGRAM
CAUTION / NOTICE / HINT
NOTICE:
If the transponder key ECU assembly is replaced, register the key and ECU commu ...
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