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.
Ultrasonic Sensor(for Front Side)
Components
COMPONENTS
ILLUSTRATION
Removal
REMOVAL
PROCEDURE
1. REMOVE FRONT BUMPER ASSEMBLY
(See page )
2. REMOVE NO. 1 ULTRASONIC SENSOR
(a) Disengage the 2 claws to remove the No. 1 ultrasonic sensor.
HINT:
Use the same proc ...
Steering Angle Sensor Initialization Incomplete (C1439/31,C1445/31)
DESCRIPTION
The skid control ECU acquires the steering angle sensor zero point every time
the ignition switch is turned to ON and the vehicle is driven at 50 km/h (31 mph)
or more for approximately 30 seconds. The ECU also stores previous zero points.
Wa ...
Data List / Active Test
DATA LIST / ACTIVE TEST
1. ACTIVE TEST
HINT:
Using the Techstream to perform Active Tests allows relays, VSVs, actuators and
other items to be operated without removing any parts. This non-intrusive functional
inspection can be very useful because inter ...