TCM Self-Diagnostic Procedure (No Tools)

TCM SELF-DIAGNOSTIC PROCEDURE (NO TOOLS)

Description
In the unlikely event of a malfunction in the electrical system, when the ignition switch is switched "ON", the O/D OFF indicator lamp lights up for 2 seconds, then flashes for 8 seconds. If there is no malfunction, 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 O/D OFF indicator lamp flashes to display the corresponding DTC.

Diagnostic Procedure

1. CHECK O/D OFF 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 O/D OFF indicator lamp come on for about 2 seconds?
YES >> GO TO 2.
NO >> GO TO AT-178, "O/D OFF Indicator Lamp Does Not Come On". O/D Off Indicator Lamp Does Not Come On

2. JUDGEMENT PROCEDURE STEP 1
1. Turn ignition switch OFF.
2. Push 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.
7. Wait 3 seconds.
8. Move the selector lever from "D" to "3" position.
9. Release brake pedal. (Stop lamp switch signal "OFF".)
10. Move the selector lever from "3" to "2" position.
11. Depress brake pedal. (Stop lamp switch signal "ON".)
12. Depress accelerator pedal fully and release it.
>> GO TO 3.

3. CHECK SELF-DIAGNOSIS CODE
Check O/D OFF indicator lamp.
Refer to AT-97, "Judgement Self-diagnosis Code".
If the system does not go into self-diagnostics.
Refer to AT-106, "DTC P0705 PARK/NEUTRAL POSITION SWITCH". P0705
Refer to AT-172, "CLOSED THROTTLE POSITION AND WIDE OPEN THROTTLE POSITION CIRCUIT". Closed Throttle Position and Wide Open Throttle Position Circuit
Refer to AT-173, "BRAKE SIGNAL CIRCUIT". Brake Signal Circuit
>> DIAGNOSIS END

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