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Home >> Buick >> 2003 >> Century Base >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls Self-Diagnostics - 3.1L Engine >> Diagnostic Tests >> DTC P0135: Ho2S 1 Heater Performance >> Conditions For Setting DTC
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Conditions For Setting DTC

The PCM detects that the 02 Heater Current parameter is less than 0.25 amp or more than 0.90 amp.

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