DTC Description
DTC DETECTION LOGIC
DTC | CONSULT screen terms (Trouble diagnosis content) | DTC detection condition |
P0743 | TORQUE CONVERTER (Torque Converter Clutch Circuit Electrical) | When all of the following conditions are satisfied and this state is
maintained
for 0.48 seconds:
|
POSSIBLE CAUSE
FAIL-SAFE
DTC CONFIRMATION PROCEDURE
CAUTION: Be careful of the driving speed.
1.PREPARATION BEFORE WORK
If another "DTC CONFIRMATION PROCEDURE" occurs just before, turn ignition switch OFF and wait for at least 10 seconds, then perform the next test.
>> GO TO 2.
2.PREPARATION BEFORE OPERATION
With CONSULT
FLUID TEMP : 20°C (68°F) or more
With GST
NOTE: When the ambient temperature is 20°C (68°F), the CVT fluid usually increases to 50 to 80°C (122 to 176°F) with driving in an urban area for approximately 10 minutes. Is the CVT fluid 20°C (68°F) or more? YES >> GO TO 3.
NO >> 1. Warm the transaxle.
2. GO TO 3.
3.CHECK DTC DETECTION
Selector lever : “D” position
Vehicle speed : 40 km/h (25 MPH) or more
Is “P0743” detected? YES >> Go to TM-134, "Diagnosis Procedure".
NO-1 >> To check malfunction symptom before repair: Refer to GI-41, "Intermittent Incident".
NO-2 >> Confirmation after repair: INSPECTION END
Diagnosis Procedure
1.CHECK CIRCUIT BETWEEN TCM AND CVT UNIT
Is the inspection result normal? YES >> GO TO 2.
NO >> Repair or replace malfunctioning parts.
2.CHECK CIRCUIT BETWEEN CVT UNIT AND GROUND
Check resistance between CVT unit harness connector terminal and ground.
Is the inspection result normal? YES >> INSPECTION END
NO >> There is malfunction of torque converter clutch solenoid valve. Replace transaxle assembly. Refer to TM-220, "Removal and Installation".
Meter system
Wiring diagram
...
System description
COMPONENT PARTS
Component Parts Location
No.
Component
Description
1
Push-button ignition
switch1
Push-button ignition switch (push switch) is pressed (ON), and
transmits status signal to BCM
and IPDM E/R.
Ignition switch2
Ignition ...
Low tire pressure warning lamp
Component Function Check
1.CHECK THE ILLUMINATION OF THE LOW TIRE PRESSURE WARNING LAMP
Check that the low tire pressure warning lamp is turned OFF after
illuminating for approximately 1 second,
when the ignition switch is turned ON.
Is the inspection result normal?
YES >> Inspection ...