3-38 FUEL SYSTEM (DFI)

Self-Diagnosis

Dealer Mode

The LCD (Liquid Crystal Display) display the service code(s) [A] to show the problem(s) which the DFI system, ignition system and immobilizer system has at the moment of diagnosis.

Immobilizer Models [B]

Self-diagnosis Procedures

○When a problem occurs with the DFI system and ignition system, the warning indicator light (LED) [A] and FI warning symbol [B] blinks.

○For models equipped with an immobilizer system, when a problem occurs with the system, the warning indicator light (LED) and immobilizer warning symbol [C] blinks.

NOTE

○Use a fully charged battery when conducting self-diagnosis. Otherwise, the light (LED) and symbol blinks very slowly or do not blink.

3-40 FUEL SYSTEM (DFI)

Self-Diagnosis

Self-Diagnosis Flow Chart

FUEL SYSTEM (DFI) 3-41

Self-Diagnosis

Service Code Reading

○The service code(s) is displayed on the LCD by the number of two digits.

○When there are a number of problems, all the service codes can be stored and the display will begin starting from the lowest number service code in the numerical order.

○Then after completing all codes, the display is repeated until the ignition switch is turned OFF or MODE button is pushed for more than two seconds.

○For example, if three problems occurred in the order of 56, 15, 35, the service codes are displayed (each two seconds) from the lowest number in the order listed as shown below. (15→35→56)→(15→35→56)→· · ·(repeated)

○If there is no problem or when the repair has been done, FI and/or immobilizer symbols go off and service code is not displayed.

Service Code Erasing

○When repair has been done, FI and/or immobilizer warning symbols go off and service code is not displayed.

But the service codes stored in memory of the ECU are not erased to preserve the problem history. In this model, the problem history can not be erased.

3-42 FUEL SYSTEM (DFI)

Self-Diagnosis

Service Code Table

Notes:

○The ECU may be involved in these problems. If all the parts and circuits checked out good, be sure to check the ECU for ground and power supply. If the ground and power supply are checked good, replace the ECU.

○When no service code is displayed, the electrical parts of the DFI system has no fault, and the mechanical parts of the DFI system and the engine are suspect.