SYSTEM DIAGRAM
INPUT/OUTPUT SIGNAL TABLE
Sensor (or signal) |
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TCM function |
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Actuator |
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SYSTEM DESCRIPTION
LIST OF CONTROL ITEMS AND INPUT/OUTPUT
**: If these input/output signals show errors, TCM activates the fail-safe function.
CVT CONTROL SYSTEM : Schematic
TCM has a fail-safe mode. The mode functions so that operation can be continued even if the signal circuit of the main electronically controlled input/output parts is damaged.
If the vehicle shows following behaviors including "poor acceleration", a malfunction of the applicable system is detected by TCM and the vehicle may be in a fail-safe mode. At this time, check the DTC code and perform inspection and repair according to the malfunction diagnosis procedures.
Fail-safe function
DTC | Vehicle behavior | Conditions of vehicle |
P062F |
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P0705 |
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P0706 |
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The TCM becomes the protection control status temporarily to protect the safety when the safety of TCM and transmission is lost. It automatically returns to the normal status if the safety is secured.
The TCM has the following protection control.
CONTROL FOR WHEEL SPIN
CONTROL WHEN FLUID TEMPERATURE IS HIGH
TORQUE IS REDUCED WHEN DRIVING WITH THE REVERSE GEAR
REVERSE PROHIBIT CONTROL
FLUID COOLER & FLUID WARMER SYSTEM : System Description CVT FLUID COOLER SCHEMATIC COMPONENT DESCRIPTION CVT Oil Warmer The CVT oil warmer (1) is installed on the front part of trans ...
LINE PRESSURE CONTROL : System Description SYSTEM DIAGRAM DESCRIPTION Highly accurate line pressure control (secondary pressure control) reduces friction for improvement of fuel economy. No ...
Engine control system
ENGINE CONTROL SYSTEM : System Diagram
NOTE:
Battery current sensor is used in CVT models.
ENGINE CONTROL SYSTEM : System Description
ECM performs various controls such as fuel injection control and ignition
timing control.
ENGINE CONTROL SYSTEM : Fail Safe
NON DTC RELATED ITEM
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P0720 Output speed sensor
DTC Logic
DTC DETECTION LOGIC
DTC
Trouble diagnosis name
DTC detection condition
Possible causes
P0720
Output Speed Sensor Circuit
Under the following diagnosis
conditions, the output speed
sensor value is less than 100
rpm continuously for 5 seconds
or ...