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Home >> Nissan-Datsun >> 2004 >> Altima S, Standard >> Repair and Diagnosis >> External Pages >> Different car >> Section 1184 (Engine Control System - DTCS P0643 To P2A03 (VQ40DE)) >> DTC P1800: VIAS Control Solenoid Valve 1 >> On Board Diagnosis Logic

On Board Diagnosis Logic

WARNING: This page is about a different car, the 2012 Nissan Pathfinder. However, it is still accessible from the selected car via links, so may be relevant.

The MIL will not illuminate for this self-diagnosis  .

DTC No. Trouble diagnosis name DTC detecting condition Possible cause
P1800
1800
VIAS control solenoid valve circuit An excessively low or high voltage signal is sent to ECM through the valve
  • Harness or connectors (The solenoid valve circuit is open or shorted.)
  • VIAS control solenoid valve