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Home › Oldsmobile › 1996 › Eighty-Eight Base › Repair and Diagnosis › Engine Performance › System › Engine Control Systems Tests W/Codes › Diagnostic Trouble Codes › DTC P1645 - Boost Control Solenoid Control Circuit › Conditions required to set DTC are:

Conditions required to set DTC are:

Ignition is on.
An improper voltage level has been detected on boost control solenoid driver circuit.
Listed conditions are present for more than 30 seconds.