DTC P0741:00 [FN4A-EL]


id050218818200

DTC P0741:00

TCC stuck off

DETECTION CONDITION
•  Under the following conditions, the difference between the engine speed and turbine speed is 100 rpm or more for 5 s.
―  Time since selector lever changing to D position is 10 s or more
―  Vehicle is driven without shifting
―  ATF temperature is 20 °C {68 °F} or more
―  Engine speed is 300 rpm or more
―  Turbine speed is 225 to 4,987 rpm
―  Vehicle speed is 62 to 96 km/h {38 to 60 mph}
―  Gear position is 4GR
―  TCC control is operated
―  Vehicle is driven in NORMAL mode
―  Shift solenoid A duty ratio is 99.22% or more
―  DTCs relating TR switch are not stored
―  DTCs relating input/turbine speed sensor are not stored
―  DTCs relating TFT sensor are not stored
―  DTCs relating shift solenoid A are not stored
―  DTCs relating shift solenoid B are not stored
―  DTCs relating shift solenoid C are not stored
―  DTCs relating shift solenoid D are not stored
―  DTCs relating shift solenoid E are not stored
Diagnostic support note
•  The check engine light does not illuminate.
•  The automatic transaxle warning light illuminates if the PCM detects the above malfunction condition during the first drive cycle.
•  PENDING CODE is not available.
•  FREEZE FRAME DATA is not available.
•  The DTC is stored in the PCM memory.
POSSIBLE CAUSE
•  Deteriorated ATF
•  ATF level low
•  Solenoid valve malfunction
―  Pressure control solenoid
―  Shift solenoid A
―  Shift solenoid B
―  Shift solenoid C
―  Shift solenoid D
―  Shift solenoid E
•  Line pressure malfunction
•  Control valve body malfunction
•  PCM malfunction

Diagnostic procedure

STEP

INSPECTION

ACTION

1
VERIFY RELATED REPAIR INFORMATION AVAILABILITY
•  Verify related Service Information availability.
•  Is any related repair information available?
Yes
Perform repair or diagnosis according to the available repair information.
•  If the vehicle is not repaired, go to the next step.
No
Go to the next step.
2
INSPECT ATF CONDITION
•  Inspect the ATF condition.
•  Is it normal?
Yes
Go to the next step.
No
Replace the ATF, then go to Step 7.
3
INSPECT ATF LEVEL
•  Inspect the ATF level.
•  Is it normal?
Yes
Go to the next step.
No
Add ATF to the specified level, then go to Step 7.
4
INSPECT SOLENOID VALVE
•  Inspect the following solenoid valves:
―  Pressure control solenoid
―  Shift solenoid A
―  Shift solenoid B
―  Shift solenoid C
―  Shift solenoid D
―  Shift solenoid E
•  Is there any malfunction?
Yes
Replace the solenoid valve, then go to Step 7.
No
Go to the next step.
5
INSPECT LINE PRESSURE
•  Perform the “Line Pressures Test”.
•  Is there any malfunction?
Yes
Repair or replace malfunctioning part according to test result, then go to Step 7.
No
Go to the next step.
6
INSPECT CONTROL VALVE BODY
•  Remove the control valve body.
•  Disassemble the control valve body.
•  Inspect the following parts:
―  Shift valve
―  Return spring
―  Hydraulic passage
•  Is there any malfunction?
Yes
Repair or replace malfunctioning part according to inspection result, then go to next step.
No
Replace the transaxle, then go to the next step.
7
VERIFY DTC TROUBLESHOOTING COMPLETED
•  Make sure to reconnect all the disconnected connectors.
•  Clear the DTC using the M-MDS.
•  Perform the following procedure to ensure that the DTC has been resolved:
1.  Drive the vehicle under the following conditions for 5 s or more.
―  Time since selector lever changing to D position is 10 s or more
―  Vehicle is driven without shifting
―  ATF temperature (PID item: TFT) is 20 °C {68 °F} or more
―  Engine speed (PID item: RPM) is 300 rpm or more
―  Turbine speed (PID item: TSS) is 225 to 4,987 rpm
―  Vehicle speed is 62 to 96 km/h {38 to 60 mph}
―  Gear position is 4GR
―  TCC control is operated
―  Vehicle is driven in NORMAL mode
―  Shift solenoid A duty ratio (PID item: SSA/SS1) is 99.22% or more
•  Is the same DTC present?
Yes
Replace the PCM, then go to the next step.
No
Go to the next step.
8
VERIFY NO DTCs ARE PRESENT
•  Perform the “Reading DTCs Procedure”.
•  Are any DTCs present?
Yes
Go to the applicable DTC inspection.
No
DTC troubleshooting completed.