2002 Chevrolet Cavalier Diagnostic Trouble Code Tests

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Filed Under (Chevrolet) by admin on 14-09-2010

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The daytime running lights (DRL) relay is controlled by the body control module (BCM). Battery positive voltage is applied to the relay coil at all times. The BCM grounds the DRL relay control circuit in order to turn ON the DRL relay. When the DRL relay control circuit becomes shorted to ground or the DRLs remain illuminated without being commanded on by the BCM, DTC B2601 is set. CONDITIONS FOR RUNNING THE DTC ^ The ignition switch is in the ON position. ^ The headlamp switch is in the off position. ^ The transaxle is in park. CONDITIONS FOR SETTING THE DTC All of the following conditions must be met: ^ The BCM is not commanding the DRL relay on. ^ The headlamp feedback is present for 5 seconds. ACTION TAKEN WHEN THE DTC SETS ^ The BCM disables the DRL relay control as long as the malfunction is present. ^ The SERVICE indicator illuminates

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