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Home › Buick › 2002 › Century Custom › Repair and Diagnosis › Engine Performance › System › Engine Control System Self-Diagnostics - 3.1L Engine › Diagnostic Tests › DTC P1660: Cooling Fans Control Circuit › Conditions For Setting DTC

Conditions For Setting DTC

The ODM has detected a voltage greater than 33 volts.
Excessive current is detected on any circuit to the ODM.
The conditions are present for 30 seconds.