Without Scan Tool

OUTPUT OF DIAGNOSTIC CODES
To obtain an output of diagnostic codes, proceed as follows:

1 Initial conditions
a. Battery voltage above 11 volts.
b. Throttle valve fully closed (throttle position sensor IDL points closed).
c. Transmission in neutral position.
d. Accessory switches OFF.
e. Engine at normal operating temperature.

2. Turn the ignition switch to ON. Do not start the engine.






3. Connect terminals TE1 and E1 of the check connector located near the No.2 relay block.






4. Read the diagnostic code as indicated by the number of flashes of the "CHECK ENGINE" warning light.






a. Normal System Operation
The light will blink 2 times per second.






b. Malfunction Code Indication
The light will blink a number of times equal to the malfunction code indication as follows:
1. Between the first digit and second digit, 1.5 seconds.
2. Between code and code, 2.5 seconds.
3. Between all malfunction codes, 4.5 seconds.

The diagnostic code series will be repeated as long as the check connector terminals TE1 and E1 are connected.

HINT: In event of a number of trouble codes, indication will begin from the small value and continue to the larger in order.

5. After the diagnosis check, remove the sub-wire.

DIAGNOSIS INDICATION
1. Including "normal", the ECU is programmed with 16 (Federal and Canada), 18 (California) diagnostic codes.

2. When 2 or more codes are indicated, the lowest number (code) will appear first.

3. All detected diagnostic codes, except 51 and 53, will be retained in memory be the ECU from the time of detection until cancelled out.

4. Once the malfunction is cleared, the "CHECK ENGINE" warning light on the instrument panel will go out but the diagnostic code(s) remain stored in ECU memory (except for code 51 and 53).