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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

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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