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Home >> Pontiac >> 2005 >> Grand Prix Base >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls - 3.8L - DTC P0406 To DTC P1111 >> DTC P0685: Engine Controls Ignition Relay Control Circuit >> Conditions for Setting the DTC

Conditions for Setting the DTC

The PCM detects more than 4.6 volts on the relay coil control circuit for more than 2 seconds.

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