Content .. 875 876 877 878 ..

Nissan Sentra. Manual - part 877

TM-144

< BASIC INSPECTION >

[CVT: RE0F11A]

ADDITIONAL SERVICE WHEN REPLACING TRANSAXLE ASSEMBLY

ADDITIONAL SERVICE WHEN REPLACING TRANSAXLE ASSEMBLY

Description

INFOID:0000000009759374

When replacing the transaxle, perform the following work.

ERASING, LOADING AND STORING OF 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. For this reason,

after the transaxle assembly is replaced, it is necessary to erase the calibration data previously stored in

TCM, to load new calibration data, and to store them.

ERASING THE LEARNED VALUE DATA

• TCM learns indicated pressure for appropriate control of the transaxle assembly and records the learned

values. For this reason, the leaned values stored in TCM must be erased after replacing a transaxle assem-

bly.

ERASING CVT FLUID DEGRADATION LEVEL DATA

• TCM records the degradation level of the CVT fluid calculated from the vehicle driving status. Therefore, if

the transaxle assembly is replaced, it is necessary to erase the CVT fluid degradation level data recorded by

TCM.

Work Procedure

INFOID:0000000009759375

INITIALIZE TCM

With CONSULT

1. Set parking brake.

2. Turn ignition switch ON.

3. Select “Work Support” in “TRANSMISSION”.

4. Select “ERASE MEMORY DATA”.

5. While maintaining the conditions below, touch “Start”.

Vehicle stop status

With engine stopped

Selector lever: “R” position

Accelerator pedal: Depressed

NOTE:

Select “Start” and complete within approximately 20 seconds.
Is “COMPLETED” displayed?

YES

>> GO TO 2.

>> Turn the ignition switch OFF and wait for a minimum of 10 seconds then perform the work again.

CHECK AFTER TCM IS INITIALIZED

With CONSULT

1. Turn ignition switch OFF with the selector lever in “R” position and wait for 10 seconds or more.

2. Turn ignition switch ON with the selector lever in “R” position.

CAUTION:

Never start the engine.

3. Select “Special function” in “TRANSMISSION”.

4. Select “CALIB DATA”.

5. Check that indicated value of “CALIB DATA” is equal to the value shown in the following table.

Item name

Display value

Item name

Display value

UNIT CLB ID1

MAP NO HC/RB

UNIT CLB ID2

MAP NO L/B

UNIT CLB ID3

OFFSET2 LU

UNIT CLB ID4

OFFSET2 PL

UNIT CLB ID5

OFFSET2 PRI

UNIT CLB ID6

OFFSET2 H/R

ADDITIONAL SERVICE WHEN REPLACING TRANSAXLE ASSEMBLY

TM-145

< BASIC INSPECTION >

[CVT: RE0F11A]

Is the indicated value of “CALIB DATA” equal to the value shown in the table?

YES

>> GO TO 3.

>> GO TO 1.

LOAD CALIBRATION DATA

1. Shift the selector lever to the “P” position.

2. Check that “P” is displayed on shift position indicator on combination meter.

NOTE:

Displayed approximately 4 – 5 seconds after the selector lever is moved to the “P” position.

Does shift position indicator display “P”?

YES

>> GO TO 5.

>> GO TO 4.

DETECT MALFUNCTIONING 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 1.

>> Repair or replace the malfunctioning parts.

STORE CALIBRATION DATA

1. Turn ignition switch OFF and wait for 5 seconds.

2. Turn ignition switch ON.
Does the shift position indicator display “P” at the same time when turning ON the ignition switch?

YES

>> GO TO 6.

>> Check harness between battery and TCM harness connector terminal.

ERASE THE CVT FLUID DEGRADATION LEVEL DATA

With CONSULT

1. Select “WORK SUPPORT” in “TRANSMISSION”.

2. Select “CONFORM CVTF DETERIORTN”.

3. Touch “Clear”.

UNIT CLB ID7

OFFSET2 L/B

UNIT CLB ID8

INIT OFFSET H/R A

UNIT CLB ID9

INIT OFFSET H/R B

UNIT CLB ID10

INIT OFFSET H/R C

UNIT CLB ID11

INIT OFFSET H/R D

GAIN LU

256

INIT OFFSET H/R E

GAIN PL

256

INIT OFFSET H/R F

GAIN PRI

256

INIT OFSET LB A

GAIN HC/RB

256

INIT OFSET LB B

GAIN L/B

256

INIT OFSET LB C

OFFSET LU

INIT OFSET LB D

OFFSET PL

INIT OFSET LB E

OFFSET PRI

INIT OFSET LB F

OFFSET HC/RB

LB INITIALIZE LEARN

−1

OFFSET L/B

HC INITIALIZE LEARN

−1

MAP NO LU

LB INITIALIZE TEMP

MAP NO PL

LB INITIALIZE TEMP

MAP NO PRI

Item name

Display value

Item name

Display value

TM-146

< BASIC INSPECTION >

[CVT: RE0F11A]

ADDITIONAL SERVICE WHEN REPLACING TRANSAXLE ASSEMBLY

>> WORK END

CALIBRATION OF G SENSOR

TM-147

< BASIC INSPECTION >

[CVT: RE0F11A]

CALIBRATION OF G SENSOR

Description

INFOID:0000000009759376

TCM stores calibration data (inherent characteristic value) of G sensor to provide accurate control. Therefore,

it is required to perform calibration of G sensor after the following work is performed.

• Removal/installation or replacement of G sensor

• Replacement of TCM

Work Procedure

INFOID:0000000009759377

PREPARATION BEFORE CALIBRATION PROCEDURE

1. Park the vehicle on a level surface.

2. Adjust air pressure of all tires to the specified pressure.

WT-54, "Tire Air Pressure"

>> GO TO 2.

PERFORM G SENSOR CALIBRATION

With CONSULT

1. Turn ignition switch ON.

CAUTION:

Never start engine.

2. Select “Work Support” in “TRANSMISSION”.

3. Select “G SENSOR CALIBRATION”.

4. Touch “Start”.

CAUTION:

Never swing the vehicle during “G sensor calibration”.

Is “COMPLETED” displayed?

YES

>> GO TO 3.

>> Perform steps 1 and 2 again.

CHECK DTC

With CONSULT

1. Turn ignition switch OFF and wait for 10 seconds.

2. Turn ignition switch ON.

3. Select “Self Diagnostic Results” in “TRANSMISSION”.
Is “P1586” or “P1588” detected?

YES

>> Go to

TM-126, "DTC Index"

>> Calibration end

Content .. 875 876 877 878 ..