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Home >> Chevrolet >> 2009 >> HHR SS, Standard >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 10 (Engine Controls And Fuel - 2.2L Or 2.4L - DTC P0351 To DTC P2544) >> DTC P0641 or P0651 >> Repair Verification

Repair Verification

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With the ignition ON and the engine OFF, observe the 5-Volt Reference 1 and 2 parameters. The scan tool should display 4.8-5.2 volts for a normally operating system.

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