Additional Service When Replacing TCM: Procedure
CAUTION:
Immediately after TCM is replaced or after transaxle assembly/control valve is replaced (after TCM initialization is complete), self-diagnosis result of "P1701", "P1709" may be displayed. In this case, erase self-diagnosis result using CONSULT. After erasing self-diagnosis result, perform DTC "P1701", "P1709" reproduction procedure and check that malfunction is not detected. Refer to
"DTC LOGIC " (P1701),
"DTC LOGIC " (P1709).
- CHECK NEW TCM PART NUMBER
Check new TCM part number to see whether it is blank TCM or not.
NOTE:- Part number of blank TCM is 310F6-XXXXX.
- Check the part number when ordering TCM or with the one included in the label on the container box.
Is the new TCM a blank TCM?
YES: GO TO 2.
NO: GO TO 3.
- SAVING TCM DATA (VEHICLE SPECIFICATIONS) NOTE: Save necessary data stored in TCM in CONSULT according to the following instructions:
With CONSULT
- Turn ignition switch OFF.
- Turn ignition switch ON.
- Select "Re/programming, Configuration".
- Select "AT/CVT".NOTE: If "AT/CVT" is not displayed and TCM data cannot be saved on CONSULT, GO TO 3.
- Select "Programming".
- Save TCM data on CONSULT according to the CONSULT display.
: GO TO 3.
- REPLACE TCM
- Turn ignition switch OFF and wait for 10 seconds.
- Replace TCM. Refer to
"REMOVAL AND INSTALLATION ".
: GO TO 4.
- LOAD CALIBRATION DATA
- Shift the selector lever to the "P" position.
- Turn ignition switch ON.
- Check that "P" is displayed on shift position indicator on combination meter.NOTE: Displayed approximately 1 - 2 seconds after the selector lever is moved to the "P" position.
Does the shift position indicator display "P"?
YES: GO TO 5.
NO: GO TO 7.
- STORE CALIBRATION DATA
- Turn ignition switch OFF and wait for 5 seconds.
- Turn ignition switch ON.
Does the shift position indicator display "P" at the same time when turning ON the ignition switch?
YES-1 (New TCM is blank): GO TO 6.
YES-2 (New TCM is not blank): WORK END
NO: Check harness between battery and TCM harness connector terminal. Refer to "DIAGNOSIS PROCEDURE ".
- WRITE TCM DATA (VEHICLE SPECIFICATIONS) NOTE: Write data saved in CONSULT into a new TCM according to the following instructions:
With CONSULT
- Select "Programming".
- Perform programming according to the CONSULT display.
: WORK END
- DETECT MALFUNCTIONING ITEM
Check the following items:
- Harness between the TCM and the ROM assembly inside the transaxle assembly is open or shorted.
- Disconnected, loose, bent, collapsed, or otherwise abnormal connector housing terminals
Is the inspection result normal?
YES: GO TO 4.
NO: Repair or replace the malfunctioning parts.