The secondary pressure sensor detects secondary pressure of CVT and sends a signal to the TCM.
DTC Logic
DTC DETECTION LOGIC
DTC CONFIRMATION PROCEDURE
NOTE: Immediately after performing any "DTC CONFIRMATION PROCEDURE", always turn ignition switch OFF.
Then wait at least 10 seconds before performing the next test.
1.CHECK DTC DETECTION
With CONSULT
ATF TEMP SEN : 1.0 - 2.0 V
If it is out of range, drive the vehicle to decrease the voltage (warm up the fluid) or stop engine to increase the voltage (cool down the fluid)
4. Start engine and wait for at least 5 consecutive seconds.
With GST
Follow the procedure "With CONSULT".
Diagnosis Procedure
Regarding Wiring Diagram information, refer to TM-126, "Wiring Diagram".
1.CHECK INPUT SIGNAL
2.CHECK POWER AND SENSOR GROUND
Check voltage between TCM terminals.
3.CHECK HARNESS BETWEEN TCM AND CVT UNIT (SECONDARY PRESSURE SENSOR) (PART 1)
4.CHECK HARNESS BETWEEN TCM AND CVT UNIT (SECONDARY PRESSURE SENSOR) (PART 2)
Check continuity between TCM vehicle side harness connector terminal and ground.
5.CHECK HARNESS BETWEEN TCM AND CVT UNIT (SENSOR POWER AND SENSOR GROUND) (PART 1)
6.CHECK HARNESS BETWEEN TCM AND CVT UNIT (SENSOR POWER AND SENSOR GROUND) (PART 2)
Check continuity between TCM vehicle side harness connector terminals and ground.
7.CHECK TCM
8.DETECT MALFUNCTIONING ITEMS
Check TCM connector pin terminals for damage or loose connection with harness connector.
P0740 torque converter
Description
The torque converter clutch solenoid valve is activated by the TCM
in response to signals sent from the vehicle
speed and accelerator pedal position sensors. Lock-up piston operation will
then be controlled.
Lock-up operation, however, is prohibited when CVT fl ...
B2556 push-button ignition switch
Description
The switch that changes the power supply position. BCM
maintains the power supply position status. BCM
changes the power supply position with the operation of the push-button ignition
switch.
DTC Logic
DTC DETECTION LOGIC
DTC CONFIRMATION PROCEDURE
1.PERFORM DTC CONFIRMATION ...
Key slot illumination
Description
Blinks when Intelligent Key insertion is required.
Component Function Check
1. CHECK FUNCTION
With CONSULT
Check key slot illumination KEY SLOT ILLUMI in Active Test mode.
Diagnosis Procedure
1. CHECK KEY SLOT ILLUMINATION OUTPUT SIGNAL
Check voltage between key slot connector ...