Precautions For TCM, A/T Assembly and Control Valve Assembly Replacement
Precautions for TCM, A/T Assembly and Control Valve Assembly ReplacementCAUTION:
^ Check data (Unit ID) in TCM with data monitor of CONSULT-II before replacing A/T assembly or control valve assembly.
^ Check if new data (Unit ID) are entered correctly after replacing A/T assembly or control valve assembly and erasing data in TCM.
^ When replacing A/T assembly, control valve assembly or TCM, refer to the pattern table and erase the EEPROM in the TCM if necessary.
EEPROM ERASING PATTERNS
METHOD FOR ERASING THE EEPROM IN THE TCM
1. Connect CONSULT-II to data link connector.
2. Turn ignition switch ON. Confirm that CONSULT-II turn ON.
3. Move selector lever in R position.
4. Touch START on CONSULT-II.
5. Select SELF-DIAG RESULTS mode for A/T with CONSULT-II.
6. Fully press the accelerator pedal (8/8 throttle), and hold it in the fully open position. (This will set the closed throttle position signal to OFF.)
7. Touch ERASE on CONSULT-II and then touch YES.
8. Wait 3 seconds and then release the accelerator pedal.
9. Turn ignition switch OFF.
METHOD FOR WRITING DATA FROM THE ROM ASSEMBLY IN THE TRANSMISSION
In the following procedure, the TCM reads data from the ROM assembly and writes it to the EEPROM in the TCM.
1. With the EEPROM in the TCM erased.
2. Move selector lever in P position.
3. Turn ignition switch ON.
CHECK METHOD
^ Normal: About 2 seconds after the ignition switch ON, the A/T CHECK indicator lamp lights up for 2 seconds.
^ Abnormal: Even after the ignition switch ON, the A/T CHECK indicator lamp does not light up after 2 seconds or illuminates immediately
Cope for Abnormal
^ Replace the control valve assembly.
^ Replace the TCM.