Diagnosis Procedure

WARNING: This page is about a different car, the 2011 Infiniti QX56. However, it is still accessible from the selected car via links, so may be relevant.

PERFORM DTC CONFIRMATION PROCEDURE
1. Turn ignition switch ON.
2. Erase DTC.
3. Perform DTC Confirmation Procedure.
  See "DTC LOGIC ".
  
  Is the DTC P1607 displayed again?
  
  YES: Replace VVEL control module. Refer to "REMOVAL AND INSTALLATION ".
  
  NO: INSPECTION END