Without Scan Tool
MALFUNCTION INDICATOR LAMP (MIL) CHECK
1. The MIL will come on--when the ignition switch is placed at ON and the engine is not running.
2. When the engine is started, the MIL should go off. If the light remains on, the diagnosis system has detected a malfunction or abnormality in the system.
DIAGNOSTIC TROUBLE CODES OUTPUT IN NORMAL MODE
TO OBTAIN AN OUTPUT OF DIAGNOSTIC TROUBLE CODES, PROCEED AS FOLLOWS:
1. Initial conditions
- Battery voltage 11 V or more
- Throttle valve fully closed (throttle position sensor IDL points closed)
- Transmission in neutral position
- Accessories switched OFF
- Engine at normal operating temperature
2. Turn the ignition switch ON.
NOTICE: DO NOT start the engine.
3. Using a jumper wire (or SST 09843-18020), connect terminals TE1 and E1 of the DLC1.
4. Read the diagnostic trouble code as indicated by the number of flashes of the MIL.
DIAGNOSTIC TROUBLE CODES:
- Normal System Operation (no malfunction)
- The light will alternately blink ON and OFF at 0.26 second intervals.
- Malfunction Code Indication
- In the event of a malfunction, the light will blink every 0.52 seconds.
- The first number of blinks will equal the first digit of a 2 digit diagnostic trouble code and, after a 1.5 second pause, the 2nd number of blinks will equal the 2nd digit.
- If there are 2 or more codes, there will be a 2.5 second pause between each code.
- After all the codes have been output, there will be a 4.5 second pause and they will all be repeated as long the terminals TE1 and E1 of the DLC1 are connected.
HINT: In the event of a number of trouble codes, indication will begin from the smaller value and continue to the larger.
2 TRIP DETECTION LOGIC:
Diagnostic trouble codes 25, 26 arid 71 use "2 trip detection logic". With this logic, when a malfunction first detected, the malfunction is temporarily stored the ECM memory. If the same case is detected again during the second drive test, this second detection causes the MIL to light up. The 2 trip repeats the same mode a 2nd time. (However, the ignition switch must be turned OFF between the 1st time and 2nd time.) In the Test Mode, the MIL lights up the 1st time a malfunction is detected.
5. After the diagnosis check, remove the jumper from the DLC1.
DIAGNOSTIC TROUBLE CODES OUTPUT IN TEST MODE
HINT:
- Compared to the normal mode, the test mode has an increased sensing ability to detect malfunctions .
- It can also detect malfunctions in the starter signal circuit and air conditioning signal.
- Furthermore, the same diagnostic items which are detected in the normal mode can also be detected in the test mode.
TO OBTAIN AN OUTPUT OF DIAGNOSTIC TROUBLE CODES, PROCEED AS FOLLOWS:
1. Initial conditions.
- Battery voltage 11 V or more.
- Throttle valve fully closed (throttle position sensor IDL points closed).
- Transmission in neutral position.
- Accessories switched OFF.
2. Turn the ignition switch OFF.
3. First, using a jumper wire (or SST 09843-18020), connect terminals TE2 and E1 of the DLC1.
4. Turn the ignition switch ON.
HINT: To confirm that the test mode is operating, check that the MIL flashes when the ignition switch is turned ON.
5. Start the engine and drive the vehicle at a speed of 10 km/h (6 mph) or higher.
6. Simulate the conditions of the malfunction described by the customer.
7. Using a jumper wire (or SST 09843-18020), connect terminals TE1 and E1 of the DLC1.
8. Read the diagnostic trouble code as indicated by the number of flashes of the MIL.
9. After the diagnosis check, remove the jumper from the DLC1.
HINT:
- The test mode will not start if terminals TE2 and E1 are connected after the ignition switch is turned ON.
- The starter signal and vehicle speed signal will be diagnosed by the ECM as malfunctions, and code Nos.42, and 43 will be output, if the step 4 is not done.
- When the air conditioning is on or when the accelerator pedal is depressed, code 51 (Switch condition signal) is output, but this is not abnormal.