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Home >> Chevrolet >> 2006 >> Optra5 LT, Standard >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls - 1.8L (L79) - DTC P0443 To DTC P2297 >> DTC P0506 or P0507 >> Component Testing

Component Testing

  1. Measure for 40-80 ohms of resistance between the following terminals of the IAC valve.
    • A and B
    • C and D
    • If the resistance is not within the specified range, replace the IAC valve.
  2. Test for infinite resistance between the following terminals of the IAC valve.
    • A and C
    • B and C
    • If less than infinite resistance, replace the IAC valve.
  3. Test for infinite resistance between each terminal of the IAC valve, and the housing of the IAC valve.
    • If less than infinite resistance, replace the IAC valve.
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