SFI System

HINT: Parameters listed in the chart may not be exactly same as your reading due to type of the instruments or other factors.

If a malfunction code is displayed during the diagnostic code check in test mode, check the circuit for that code listed in the table below.































DIAGNOSTIC TROUBLE CODE CHART
*1: "ON" displayed in the diagnostic mode column indicates that the Malfunction Indicator Lamp is lit up when a malfunction is detected. "OFF" indicates that the "CHECK" does not light up during malfunction diagnosis, even if a malfunction is detected. "N.A." indicates that the item is not included in malfunction diagnosis.
*2: "O" in the memory column indicates that a diagnostic trouble code is recorded in the Engine Control Module (ECM) memory when a malfunction occurs. "X" indicates that a diagnostic trouble code is not recorded in the ECM memory even if a malfunction occurs. Accordingly, output of diagnostic results in normal or test mode is done with the IG switch ON.
*3: Only vehicles with TRAC.




*4: This indicates items for which "2 trip detection logic" is used. With this logic, when a logic malfunction is first detected, the malfunction is temporarily stored in the ECM memory. If the same case is detected again during the second drive test, this second detection causes the Malfunction Indicator Lamp to light up.

The 2 trip repeats the same mode a 2nd time. (However, the IG switch must be turned OFF between the 1st trip and 2nd trip).
In the Test Mode, the Malfunction Indicator Lamp lights up the 1st trip a malfunction is detected.




FAIL-SAFE CHART
If any of these codes are detected, the ECM enters fail-safe mode.

Back-Up Function:
If there is trouble with the program in the ECM and the ignition signals (IGT) are not output from the microcomputer, the ECM controls fuel injection and ignition timing at predetermined levels as a back-up function to make it possible to continue to operate the vehicle.
Furthermore, the injection duration is calculated from the starting signal (STA) and the throttle position signal (IDL). Also, the ignition timing is fixed at the initial ignition timing, 10° BTDC, without relation to the engine speed.

HINT: If the engine is controlled by the back-up function, the malfunction indicator lamp lights up to warn the driver of the malfunction but the diagnostic trouble code is not output.