Diagnosis Procedure

PERFORM DTC CONFIRMATION PROCEDURE
1. Turn ignition switch ON.
2. Erase DTC.
3. Perform DTC Confirmation Procedure.
  See "DTC LOGIC ".
  
  Is the DTC P1606 displayed again?
  
  YES: GO TO 2.
  
  NO: INSPECTION END
REPLACE VVEL CONTROL MODULE
1. Replace VVEL control module.
2. Perform additional service when replacing VVEL control module. Refer to "WORK PROCEDURE ".
  INSPECTION END