Precautions for A/T Assembly Replacement: Replacement

CAUTION:

Check data (Unit ID) in TCM with data monitor of CONSULT-II before replacing A/T assembly.
Check if new data (Unit ID) are entered correctly after replacing A/T assembly and erasing data in TCM.

When replacing A/T assembly or TCM, refer to the pattern table below and erase the EEPROM in the TCM if necessary.

EEPROM erasing patterns

Fig 1: EEPROM Erasing Patterns Remarks Table

Courtesy of NISSAN MOTOR CO., U.S.A.

Method for erasing the EEPROM in the TCM

Move selector lever in "R" position.
Set the idle switch to "OFF". (Depressed accelerator pedal at half throttle)
Ignition switch to "ON" position.
Select "SELF-DIAG RESULTS" mode for A/T with CONSULT-II.
Touch "ERASE" the EEPROM memory.

Method for writing data from the ROM assembly in the transmission

With the EEPROM in the TCM erased, the selector lever in "P" position, and the ignition switch "ON" position. In this state, the TCM reads data from the ROM assembly and writes it to the EEPROM in the TCM.

Check method

Normal: About 2 seconds after the ignition switch "ON" position, the A/T CHECK indicator lamp lights up for 2 seconds.
Abnormal: Even after the ignition switch "ON" position, the A/T CHECK indicator lamp does not light up.

Replace the A/T assembly.
Replace the TCM.
Replace the A/T assembly.