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DTC Description
 
 
DTC DETECTION LOGIC
DTCM.U.T.-III SE screen terms
(Trouble diagnosis content)
DTC detection condition
P007800EX V/T ACT/CIRC-B1
(Exhaust valve control solenoid circuit bank 1)
Diagnosis conditionEngine running
Signal (terminal)Exhaust valve timing control solenoid valve signal
ThresholdAn improper voltage is sent to the ECM through exhaust valve timing control solenoid valve
Diagnosis delay time1 second or more
 
 
POSSIBLE CAUSE
  • Harness or connectors (Exhaust valve timing control solenoid valve circuit is open or shorted.)
  • Exhaust valve timing control solenoid valve
 
 
FAIL-SAFE
Engine operating condition in fail-safe mode
Fail safe modeVehicle behavior
Device fix mode
  • This mode fixes the electric IVT motor and the EVT control solenoid valve in the reference position.
  • The intake manifold runner control valve motor is turned OFF (intake manifold runner control valve opens).
  • A control signals is not transmitted to EGR volume control valve and the EGR volume control is deactivated.
 
 
DTC Confirmation Procedure
1.PRECONDITIONING
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.
: .
 
2.PERFORM DTC CONFIRMATION PROCEDURE
  1. Start engine and warm it up to normal operating temperature.
  2. Drive the vehicle for at least 5 seconds under the following conditions:
    cautionAlways drive vehicle at safe speed.
    Selector lever Suitable position
    Vehicle speed 40 km/h (25 MPH) or more
    note
    • The gear must be fixed while driving the vehicle.
    • Keep the accelerator pedal as steady as possible during cruising.
  3. Check 1st trip DTC.
Is the DTC detected?
Proceed to DTC Diagnosis Procedure
-1To check malfunction symptom before repair: Refer to Intermittent IncidentIntermittent Incident.
-2Confirmation after repair: INSPECTION END