Diagnosis System (TCM)

DIAGNOSIS SYSTEM (TCM)


Diagnosis Description


TCM SELF-DIAGNOSTIC PROCEDURE (NO TOOLS)

Description
As a method for locating the suspected circuit, when the self-diagnostics start signal is input, the memory for the malfunction location is output and the A/T CHECK indicator lamp flashes to display the corresponding
DTC.

Operation Procedure
1. Start the engine with selector lever in "P" position. Warm engine to normal operating temperature.
2. Turn ignition switch ON and OFF at least twice, then leave it in the OFF position.
3. Wait 10 seconds.
4. Turn ignition switch ON. (Do not start the engine.)
5. Check A/T CHECK indicator lamp comes on for about 2 seconds.

CAUTION:
If A/T CHECK indicator lamp does not come on, refer to Symptom Related Diagnostic Procedures.
6. Turn ignition switch OFF.
7. Keep pressing shift lock release button.
8. Shift the selector lever from "P" to "D" position.
9. Release accelerator pedal. (Set the closed throttle position signal ON.)
10. Depress brake pedal. (Stop lamp switch signal ON.)
11. Turn ignition switch ON. (Do not start the engine.)
12. Wait 3 seconds.
13. Shift the selector lever to the manual shift gate side. (Manual mode signal ON.)
14. Release brake pedal. (Stop lamp switch signal OFF.)
15. Shift the selector lever to "D" position. (Manual mode signal OFF.)
16. Depress brake pedal. (Stop lamp switch signal ON.)
17. Release brake pedal. (Stop lamp switch signal OFF.)
18. Depress accelerator pedal fully and release it.
19. Check A/T CHECK indicator lamp. Refer to "Judgment Self-diagnosis Code".

CAUTION:
If the system does not go into self-diagnosis, refer to Symptom Related Diagnostic Procedures.

Judgment Self-diagnosis Code
If there is a malfunction, the lamp lights up for the time corresponding to the suspect circuit.











Erase Self-diagnosis
In order to make it easier to find the cause of hard-to-duplicate malfunctions, malfunction information is stored into the control unit as necessary during use by the user. This memory is not erased no matter how many times the ignition switch is turned ON and OFF.
However, this information is erased by turning ignition switch OFF after performing self-diagnostics or by erasing the memory using the CONSULT-III.