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Home >> Hyundai >> 2004 >> Elantra GLS, Standard >> Repair and Diagnosis >> Engine Performance >> Engine Control Systems >> Fuel System >> DTC Trouble Shooting Procedures >> DTC P0340: Camshaft Position Sensor (CMPS) Circuit Malfunction >> Inspection Procedures >> 3. Check Power To CMPS

3. Check Power To CMPS

  1. Turn ignition switch to OFF position and disconnect CMPS connector.
  2. Turn ignition switch to ON position and measure voltage between terminal 1 of the CMPS harness connector and chassis ground.
    Fig 1: Checking CMPS Power Supply
    G00750541Courtesy of HYUNDAI MOTOR CO.
    • Specifications: approximately B+ 

Is voltage within specification? 

Yes: Go to next step.

No: Repair open or short to chassis ground in harness.