Without Scan Tool

HOW TO DISPLAY AND READ DIAGNOSTIC TROUBLE CODES WITHOUT A SCAN TOOL

To obtain an output of diagnostic codes, proceed as follows:

1. Initial conditions

(a) Battery voltage approx. 12 V
(b) Throttle valve fully closed (throttle position sensor DL points closed)
(c) Transmission in neutral range
(d) Accessories switched OFF

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




3. Using SST, connect terminals TE 1 and E1 of the check connector. SST 09843-18020

NOTE: The check connector is located near the air cleaner.




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

Diagnostic code

(a) Normal System Operation (no malfunction)




^ The light will alternately blink ON and OFF 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.

NOTE: In the event of a number of trouble codes, indication will begin from the small value and continue to the larger in order. The diagnostic code series will be repeated as long as the check connector terminals TE1 and E1 are connected.

(c) 2 trip detection logic




Diagnostic codes 21, 25, 26 and 71 use "2 trip detection logic". With this logic, when a malfunction is first detected, the malfunction is temporarily stored in the ECU memory. If the same case is detected again during the second drive test, this second detection causes the "CHECK ENGINE" warning Light 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).




5. After the diagnostic check, remove SST from the check connector. SST 09843-18020