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Home >> Cadillac >> 2012 >> Escalade EXT >> Repair and Diagnosis >> External Pages >> Different car >> Section 785 (Battery, Charging System And Starting System) >> Diagnostic Information and Procedures >> DTC B1325 >> Circuit/System Testing
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Circuit/System Testing

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  1. If the DTC is history, refer to Charging System Test .
  2. If the DTC is current, turn ON the ignition, and with a DMM, measure the voltage between the battery positive voltage circuits of the affected module and the ground circuits of the affected module.
    • If the voltage is within 9-18 volts, replace the affected module.
    • If the voltage is not within 9-18 volts, measure the voltage between the battery positive voltage circuits of the affected module and a separate good ground.
    • If the voltage is within 9-18 volts, test the battery positive ground circuits of the affected module for high resistance or an open, and repair as necessary.
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