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Home >> Pontiac >> 2005 >> Grand Prix GXP >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 6 (Engine Controls - 3.8L - DTC P0406 To DTC P1111) >> DTC P0651: 5-Volt Reference 2 Circuit >> Conditions for Setting the DTC

Conditions for Setting the DTC

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The 5-volt reference 2 voltage is more than 4.7 volts or less than 4.4 volts for longer than 10 seconds.

This diagnostic runs continuously.