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 "DIAGNOSTIC TROUBLE CODE (DTC) CONFIRMATION PROCEDURE".
Is the "CONT UNIT (EEP ROM)" displayed again?
Yes >> Replace TCM.
No >> INSPECTION END