DTC U0115:00 [TCM (SJ6A-EL)]

id0502o1908100

DTC U0115:00

CAN communication: Communication error between PCM (local CAN between TCM and PCM)
DETECTION CONDITION
•  Vehicle condition: TCM communication normal
•  Status: Detects communication error with PCM
•  Period: Detects communication time-out
FAIL-SAFE FUNCTION
•  Inhibits learning control.
•  Inhibits direct mode.
•  Inhibits AAS mode.
•  Inhibits the TCC control and slip control.
•  Inhibits 5GR and 6GR.
•  Inhibits the neutral control.
•  Inhibits the i-stop control.
•  Inhibits the slope control.
POSSIBLE CAUSE
•  PCM connector or terminal malfunction
•  TCM connector or terminal malfunction
•  CAN communication line malfunction between PCM and TCM
•  CAN drive error (TCM or PCM)
•  PCM 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
VERIFY OTHER RELATED DTCs
•  Switch the ignition off, then ON (engine off).
•  Perform the DTC inspection using the M-MDS.
•  Is any other DTC stored?
Yes
Follow the applicable DTC inspection procedure, then go to the next step.
(See ON-BOARD DIAGNOSTIC SYSTEM DTC TABLE [TCM (SJ6A-EL)].)
No
Go to the next step.
4
INSPECT PCM CONNECTOR FOR POOR CONNECTION
•  Switch the ignition off.
•  Disconnect the PCM connector.
•  Inspect for poor connection at PCM terminals 1A and 1B (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.
5
INSPECT TCM CONNECTOR FOR POOR CONNECTION
•  Disconnect the TCM connector.
•  Inspect for poor connection at TCM terminals 1AI and 1AE (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.
6
VERIFY PCM DTC
•  Perform the PCM DTC inspection using the M-MDS.
•  Are any DTCs present?
Yes
DTC U0074:00 or U0302:00 is displayed:
•  CAN communication line can be considered the cause.
―  Repair or replace the wiring harness between PCM and TCM, then go to the next step.
DTC other than U0074:00 and U0302:00 is displayed:
•  Go to the applicable DTC inspection.
No
PCM can be considered the cause.
•  Replace the PCM, 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:
•  Start the engine.
•  Perform the DTC inspection using the M-MDS.
•  Is the same DTC present?
Yes
Replace the TCM, then go to the next step.
(See TCM REMOVAL/INSTALLATION [SJ6A-EL].)
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.
(See ON-BOARD DIAGNOSTIC SYSTEM DTC TABLE [TCM (SJ6A-EL)].)
No
DTC troubleshooting completed.