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Home >> Cadillac >> 2003 >> CTS Standard >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls - Self-Diagnostics >> Diagnostic Tests >> DTC P0662: Intake Manifold Tuning Valve Control Circuit High >> Diagnostic Procedure
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Diagnostic Procedure

Fig 1: DTC P0662: Intake Manifold Tuning Valve Control Circuit High (Steps 1 & 2)
G00249888Courtesy of GENERAL MOTORS CORP.
Fig 2: DTC P0662: Intake Manifold Tuning Valve Control Circuit High (Steps 3-15)
G00249889Courtesy of GENERAL MOTORS CORP.
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