TCM Self-Diagnostic Procedure (No Tools)

TCM SELF-DIAGNOSTIC PROCEDURE (NO TOOLS)

Description
When the ignition switch is turned ON, the indicator lamp lights up for 2 seconds. As a method for locating the suspect 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.

Diagnostic Procedure
1. CHECK A/T CHECK INDICATOR LAMP
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 engine.)
Does A/T CHECK indicator lamp come on for about 2 seconds?
YES >> GO TO 2.
NO >> Go to AT-189, A/T CHECK Indicator Lamp Does Not Come On". A/T Check Indicator Lamp Does Not Come On

2. JUDGEMENT PROCEDURE
1. Turn ignition switch OFF.
2. Keep pressing shift lock release button.
3. Move selector lever from P to D position.
4. Release accelerator pedal. (Set the closed throttle position signal ON.)
5. Depress brake pedal. (Stop lamp switch signal ON.)
6. Turn ignition switch ON. (Do not start engine.)
7. Wait 3 seconds.
8. Move the selector lever to the manual shift gate side. (Manual mode signal ON.)
9. Release brake pedal. (Stop lamp switch signal OFF.)
10. Move the selector lever to D position. (Manual mode signal OFF.)
11. Depress brake pedal. (Stop lamp switch signal ON.)
12. Release brake pedal. (Stop lamp switch signal OFF.)
13. Depress accelerator pedal fully and release it.
>> GO TO 3.

3. CHECK SELF-DIAGNOSIS CODE
Check A/T CHECK indicator lamp.
If the system does not go into self-diagnostics, refer to AT-112, "DTC P0705 PARK/NEUTRAL POSITION SWITCH". P0705
Refer to AT-166, "DTC P1815 MANUAL MODE SWITCH". P1815
Refer to AT-183, "CLOSED THROTTLE POSITION AND WIDE OPEN THROTTLE POSITION CIRCUIT". Closed Throttle Position and WOT Position Circuit
Refer to AT-184, "BRAKE SIGNAL CIRCUIT". Brake Signal Circuit
>> DIAGNOSIS END

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