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Home >> Cadillac >> 2000 >> Catera >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls - Self-Diagnostics - 3.0L >> Diagnostic Tests >> DTC P0606: Control Module Internal Performance >> Circuit Description
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Circuit Description

ECM contains data essential to running the engine. The ECM continuously checks integrity of this data. If ECM determines that an internal data test did not pass, DTC will set. Engine speed must be greater than 1120 RPM for ECM to run this DTC.

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