Control Unit (EEP ROM)

DTC CONTROL UNIT (EEP ROM)
Description





The TCM consists of a microcomputer and connectors for signal input and output and for power supply. The unit controls the A/T.





ON BOARD DIAGNOSIS LOGIC

DIAGNOSTIC TROUBLE CODE (DTC) CONFIRMATION PROCEDURE





NOTE: If "DIAGNOSTIC TROUBLE CODE CONFIRMATION PROCEDURE" has been previously conducted, always turn ignition switch "OFF" and wait at least 5 seconds before conducting the next test.

With CONSULT-II
1. Turn ignition switch "ON" and select "DATA MONITOR" mode for A/T with CONSULT-II.
2. Start engine.





3. Run engine for at least 2 seconds at idle speed.

Diagnostic Procedure
1. CHECK DTC

With CONSULT-II
1. Turn ignition switch "ON" and select "SELF DIAGNOSIS" mode for A/T with CONSULT-II.
2. Move selector lever to ""R" position.
3. Depress accelerator pedal (Full throttle position).
4. Touch "ERASE".
5. Turn ignition switch "OFF" position for 10 seconds.
Perform AT-210, "DIAGNOSTIC TROUBLE CODE (DTC) CONFIRMATION PROCEDURE".
Is the "CONT UNIT (EEP ROM)" displayed again?
Yes >> Replace TCM.
No >> INSPECTION END