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Home >> Chevrolet >> 2005 >> Aveo Base, 4D Hatchback >> Repair and Diagnosis >> Heating, Ventilation & A/C (HVAC) >> HVAC Control Systems >> HVAC Systems - Manual >> Diagnostic Information and Procedures >> DTC P1537 or DTC P1538 >> Conditions for Setting the DTC

Conditions for Setting the DTC

The ECM detects a low voltage on the A/C clutch relay control circuit for more than 25 seconds.

OR

The ECM detects a high voltage on the A/C clutch relay control circuit for more than 25 seconds.

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