DTC P2763:00 [TCM (SJ6A-EL)]


id0502o1824300

DTC P2763:00

TCC control solenoid signal: Short circuit

DETECTION CONDITION
•  Vehicle condition: TCM normal during engine rotation
•  Status: Detects short to power supply in TCC control solenoid signal system
•  Period: Confirmed 5 times in 0.1 s or more
FAIL-SAFE FUNCTION
•  Inhibits learning control.
•  Inhibits the TCC control and slip control.
•  Inhibits the neutral control.
•  Inhibits the i-stop control.
•  Inhibits accelerating from 2GR.
POSSIBLE CAUSE
•  TCM connector or terminal malfunction
•  Short to power supply in wiring harness between TCC control solenoid terminal B and TCM terminal 2Q
•  Short to power supply in wiring harness between TCC control solenoid terminal A and TCM terminal 2D
•  TCC control solenoid malfunction
•  TCM malfunction

Diagnostic procedure

STEP

INSPECTION

ACTION

1
RECORD VEHICLE STATUS WHEN DTC WAS DETECTED TO UTILIZE WITH REPEATABILITY VERIFICATION
Note
•  Recording can be facilitated using the screen capture of the PC function.
•  Record the freeze frame data/snap shot data.
Go to the next step.
2
VERIFY RELATED SERVICE INFORMATION AVAILABILITY
•  Verify related Service Information availability.
•  Is any related Service Information available?
Yes
Perform repair or diagnosis according to the available Service Information.
•  If the vehicle is not repaired, go to the next step.
No
Go to the next step.
3
INSPECT TCM CONNECTOR FOR POOR CONNECTION
•  Switch the ignition off.
•  Disconnect the TCM connector.
•  Inspect for poor connection at TCM terminals 2Q and 2D (such as damaged/pulled-out pins, corrosion).
•  Are terminals normal?
Yes
Go to the next step.
No
Repair or replace the connector and/or terminal, then go to Step 7.
4
INSPECT TCC CONTROL SOLENOID CIRCUIT FOR SHORT TO POWER SUPPLY
•  Switch the ignition ON (engine off).
•  Measure the voltage at TCM (wiring harness-side) terminals 2Q and 2D.
•  Is there 0 V at the TCM wiring harness-side connector terminals?
Yes
Go to Step 7.
No
Go to the next step.
5
INSPECT TCC CONTROL SOLENOID CIRCUIT FOR SHORT TO POWER SUPPLY
•  Switch the ignition off.
•  Disconnect the coupler component connector.
•  Switch the ignition ON (engine off).
•  Measure the voltage at TCM (wiring harness-side) terminals 2Q and 2D.
•  Is there 0 V at the TCM wiring harness-side connector terminals?
Yes
Go to the next step.
No
Refer to the wiring diagram and verify whether or not there is a common connector between the following terminals:
•  TCM terminal 2Q—Coupler component terminal H
•  TCM terminal 2D—Coupler component terminal G
If there is a common connector:
•  Determine the malfunctioning part by inspecting the common connector and the terminal for corrosion, damage, or pin disconnection, and the common wiring harness for a short to power supply.
•  Repair or replace the malfunctioning part.
If there is no common connector:
•  Repair or replace the wiring harness which has a short to power supply.
Go to Step 7.
6
INSPECT TCC CONTROL SOLENOID
•  Inspect the TCC control solenoid.
•  Is the TCC control solenoid normal?
Yes
Repair or replace the wiring harness (coupler component connector—TCC control solenoid) for short to power supply, then go to the next step.
No
Replace the control valve body, then go to the next step.
7
VERIFY SAME DTC IS NOT PRESENT
•  Always reconnect all 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.  Warm-up the engine and transmission.
3.  Drive the vehicle in D position and make sure that the gears shift smoothly from 1GR to 6GR.
•  Perform the DTC inspection using the M-MDS.
•  Is the same DTC present?
Yes
Replace the TCM, then go to the next step.
No
Go to the next step.
8
VERIFY DTC TROUBLESHOOTING COMPLETED
•  Clear the DTC using the M-MDS.
•  Perform the DTC inspection using the M-MDS.
•  Are any DTCs present?
Yes
Go to the applicable DTC inspection.
No
DTC troubleshooting completed.