DTC P2758:00 [DJVA-EL]

id050212824200

DTC P2758:00

Stuck in TCC ON
DETECTION CONDITION
•  Condition: TCC is off while engine is rotating in D range
•  Status: Absolute value is calculated for difference between engine speed every 131.072 ms for 4 times continuously, and engine speed detected by input speed sensor, and detects condition whereby total is 100 rpm or less
•  Period: Confirmed 1 time
Diagnostic support note
•  The AT warning light does not illuminate.
•  PENDING CODE is not available.
•  The DTC is stored in the TCM memory.
POSSIBLE CAUSE
•  Coupler component connector or terminal malfunction
•  Short to GND in wiring harness for coupler component terminal I and TCM terminal A5
•  Short to power supply in wiring harness for coupler component terminal I and TCM terminal A5
•  TCM connector or terminal malfunction
•  Open circuit in wiring harness for coupler component terminal I and TCM terminal A5
•  TCC engage solenoid malfunction
•  Control valve body malfunction
•  TCM 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 COUPLER COMPONENT CONNECTOR FOR POOR CONNECTION
•  Switch the ignition to OFF.
•  Disconnect the coupler component connector.
•  Inspect for poor connection (such as damaged/pulled-out pins, corrosion)
•  Is there any malfunction?
Yes
Repair or replace the terminal, then go to Step 9.
No
Go to the next step.
3
INSPECT TCC ENGAGE SOLENOID CIRCUIT FOR SHORT TO GND
•  Switch the ignition to OFF.
•  Inspect for continuity between the coupler component terminal I (wiring harness-side) and body GND.
•  Is there continuity?
Yes
Repair or replace the wiring harness for a possible short to GND, then go to Step 9.
No
Go to the next step.
4
INSPECT TCC ENGAGE SOLENOID AND CIRCUIT FOR SHORT TO POWER SUPPLY
•  Switch the ignition to ON (Engine off).
•  Measure the voltage between the coupler component terminal I (wiring harness-side) and body GND.
•  Is the voltage B+?
Yes
Repair or replace the wiring harness for a possible short to power supply, then go to Step 9.
No
Go to the next step.
5
INSPECT TCM CONNECTOR FOR POOR CONNECTION
•  Switch the ignition to OFF.
•  Disconnect the TCM connector.
•  Inspect for poor connection (such as damaged/pulled-out pins, corrosion)
•  Is there any malfunction?
Yes
Repair or replace the terminal, then go to the Step 9.
No
Go to the next step.
6
INSPECT TCC ENGAGE SOLENOID CIRCUIT FOR OPEN CIRCUIT
•  Switch the ignition to OFF.
•  Inspect for continuity between the coupler component terminal I (wiring harness-side) and TCM terminal A5.
•  Is there continuity?
Yes
Go to the next step.
No
Repair or replace the wiring harness for a possible open circuit, then go to the Step 9.
7
INSPECT TCC ENGAGE SOLENOID
•  Inspect the TCC engage solenoid.
•  Is there any malfunction?
Yes
Perform the following procedure, then go to Step 9.
1.  Replace the CVT.
2.  Perform oil pressure sensor learning.
No
Go to the next step.
8
INSPECT CVT
•  Perform the “Mechanical System Test”.
•  Is there any malfunction?
Yes
Perform the following procedure, then go to next step.
1.  Replace the CVT.
2.  Perform oil pressure sensor learning.
No
Go to the next step.
9
VERIFY TROUBLESHOOTING OF DTC P2758:00 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.  Start the engine.
2.  Vehicle accelerated from vehicle speed of 0 km/h {0 mph}.
•  Is the PENDING CODE same as the DTC present?
Yes
Perform the following procedure, then go to next step.
1.  Replace the TCM.
2.  Perform TCM learning.
No
Go to the next step.
10
VERIFY NO DTC HAS BEEN PRESENTED
•  Perform the “Reading DTCs Procedure”.
•  Are any DTCs present?
Yes
Go to the applicable DTC inspection.
(See ON-BOARD DIAGNOSTIC SYSTEM DTC TABLE [DJVA-EL].)
No
DTC troubleshooting completed.