DTC Description

DTC DETECTION LOGIC 

POSSIBLE CAUSE 

• Harness or connectors
  • Fuel injector circuit is open
• Battery power supply
• ECM (Direct injector driver unit)
• Fuel injector

FAIL-SAFE 

Fail safe mode		Vehicle behavior
Traveling control mode	Accelerator angle variation control	ECM controls the accelerator pedal depression speed to make it slower than actual speed. This causes a drop in accelerating performance and encourages the driver to repair malfunction. NOTE: ECM does not control the accelerator pedal releasing speed.
Device fix mode		Fixes electric intake valve timing control motor in the reference position. Fixes exhaust valve timing control solenoid valve in the reference position.
Combustion control mode	Stratified charge combustion control at starting	No stratified charge combustion at starting (cold start).

DTC Confirmation Procedure 

1. PRECONDITIONING 
   1. If DTC Confirmation Procedure has been previously conducted, always perform the following procedure before conducting the next test.
      1. Turn ignition switch OFF and wait at least 10 seconds.
      2. Turn ignition switch ON.
      3. Turn ignition switch OFF and wait at least 10 seconds.

      TESTING CONDITION:

      • Before performing the following procedure, confirm that battery voltage is between 12 - 15 V at idle.

   >>

   GO TO 2.

2. PERFORM DTC CONFIRMATION PROCEDURE 
   1. 1. Start engine and let it idle for at least 20 seconds.
      2. Check 1st trip DTC.

   Is 1st trip DTC detected?

   YES>>

   Refer to DTC Diagnosis Procedure .

   NO>>

   To check malfunction symptom before repair: Refer to Intermittent Incident .

   NO>>

   Confirmation after repair: INSPECTION END