Nissan Versa (N17): Additional service when replacing TCM

Description

Always perform the following items when the TCM is replaced.

LOADING OF THE CALIBRATION DATA

• The TCM acquires calibration data (individual characteristic value) of each solenoid that is stored in the ROM assembly (in the control valve). This enables the TCM to perform accurate control. After the TCM is replaced, check that the TCM has correctly loaded the calibration data.

CAUTION: When replacing TCM and transaxle assembly as a set, replace transaxle assembly first and then replace TCM.

If the TCM is replaced in advance, perform "TRANSAXLE ASSEMBLY REPLACEMENT: Special Repair Requirement".

Work Procedure

1.CHECK WORK CONTENTS

Replacing only the TCM>>GO TO 2.

Replacing the TCM after the transaxle assembly is replaced>>GO TO 2.

Replacing the transaxle assembly after the TCM is replaced>>GO TO 4.

2.CHECK AFTER TCM IS REPLACED

1. Shift the selector lever to the P position.
2. Turn ignition switch ON.
3. Turn ignition switch OFF and wait for a minimum of 20 seconds.
4. Turn ignition switch ON.
5. Check that "P" is displayed on shift position indicator on combination meter.

NOTE: Displayed approximately 2 seconds after the selector lever is moved to the P position.

Does the shift position indicator display "P"?

YES >> WORK END

NO >> GO TO 3.

3.DETECT MALFUNCTION ITEMS

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 2.

NO >> Repair or replace the malfunctioning parts.

4.PERFORM TRANSAXLE ASSEMBLY REPLACEMENT

Perform "TRANSAXLE ASSEMBLY REPLACEMENT: Special Repair Requirement".

>> Refer to TM, "Work Procedure".