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Home >> Buick >> 2003 >> Century Custom >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls Self-Diagnostics - 3.1L Engine >> Diagnostic Tests >> DTC P0030: Ho2S 1 Heater Control Circuit >> Conditions For Setting DTC
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Conditions For Setting DTC

The PCM detects that the heater control circuit current is greater than 1.25 amps for more than 20 seconds.

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