FREE REPAIR MANUALS & LABOR GUIDES 1982-2013 Vehicles
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Without Scan Tool

DIAGNOSIS INSPECTION (NORMAL MODE)

Malfunction Indicator Lamp (MIL) Check



A. The malfunction indicator lamp (MIL) will come on when the ignition switch is turned ON and the engine is not running.
^ If the malfunction indicator lamp does not light up, proceed to troubleshooting of the MIL circuit.

B. When the engine is started, the malfunction indicator lamp should go off.
^ If the light remains on, the diagnosis system has detected a malfunction or abnormality in the system. Proceed to the "Diagnostic Trouble Code Check" below.

Diagnostic Trouble Code Check
1. TURN IGNITION SWITCH ON.






2. USING A JUMPER WIRE OR SPECIAL SERVICE TOOL (SST 09843-18020), CONNECT TERMINALS BETWEEN TE1 AND E1 OF DATA LINK CONNECTOR 1 OR 2 (DLC1 or DLC2).

3. READ THE DIAGNOSTIC TROUBLE CODE FROM MALFUNCTION INDICATOR LAMP.

Fig.8 - A "Normal" (No Code) Flash Pattern For The Malfunction Indicator Lamp Is Shown:




Fig.8
- Fig.8 above shows the "Normal" or no code indication pattern of flashes.
^ If a diagnostic trouble code is not output, check the TE1 terminal circuit.

Fig. 9 - As an example, the blinking patterns for codes 12 (normal) and 31 are as shown In this illustration.:




Fig.9
- See Fig. 9 for an example of code output by the MIL.

4. CHECK THE DETAILS OF THE MALFUNCTION USING THE DIAGNOSTIC TROUBLE CODE TABLE FOUND UNDER "TROUBLE CODE DESCRIPTIONS".
Diagnostic Trouble Code Descriptions

5. AFTER COMPLETING THE CHECK, DISCONNECT TERMINALS TE1 AND E1, AND TURN OFF THE DISPLAY.
HINT: In the event of 2 or more malfunction codes, indication will begin from the smaller numbered code and continue in order to the larger.


DIAGNOSIS INSPECTION (TEST MODE)
* Compared to the Normal mode, the Test mode has high sensing ability to detect malfunctions.

* The same diagnostic items which are detected in the Normal mode can also be detected in the Test mode.

* Furthermore, it can also detect malfunctions in the starter signal circuit, the IDL contact signal of the throttle position sensor, air conditioning signal and park/neutral position switch signal.


Diagnostic Trouble Code Check
1. INITIAL CONDITIONS AS LISTED BELOW:
(a) Battery voltage must be 11 volts or more.
(b) Throttle valve fully closed.
(c) Transmission in neutral position.
(d) Air conditioning switched off.

2. TURN IGNITION SWITCH OFF.




3. USING A JUMPER WIRE OR SPECIAL SERVICE TOOL (SST 09843-18020), CONNECT TERMINALS TE2 AND E1 OF DATA LINK CONNECTOR 2 (DLC2).

4. TURN IGNITION SWITCH ON.

The Malfunction Indicator Lamp Should Flash In This Pattern When The Initial Conditions For A Trouble Code Check Are Fulfilled.:




- To confirm that the test mode is operating, check that the malfunction indicator lamp flashes when the ignition switch is turned to ON.
- If the malfunction indicator lamp does not flash, proceed to troubleshooting of the TE2 terminal circuit.

5. START THE ENGINE.

6. SIMULATE THE CONDITIONS OF THE MALFUNCTION DESCRIBED BY THE CUSTOMER.




7. AFTER THE ROAD TEST, CONNECT TERMINALS TE1 AND E1 OF DLC2 USING SST# 09843-18020 OR SIMILAR JUMPER WIRE.




8. READ THE DIAGNOSTIC TROUBLE CODE ON MALFUNCTION INDICATOR LAMP.

9. AFTER COMPLETING THE CHECK, DISCONNECT TERMINALS TE1, TE2 AND E1, AND TURN OFF THE DISPLAY.

HINTS:
^ The "Test" mode will not start if terminals TE2 and El are connected after the ignition switch is turned ON.
^ When the engine is NOT cranked, diagnostic trouble code "43" (Starter signal) is output. This is not abnormal.
^ When the automatic transmission shift lever is in the "D", "2", "L" or "R" shift position, or when the air conditioning is ON or when the accelerator pedal is depressed, code "51" (Switch condition signal) is output. This is not abnormal.