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Home >> Saturn >> 2007 >> Vue Green Line >> Repair and Diagnosis >> External Pages >> Different car >> Section 499 (Battery, Charging System And Starting System) >> Diagnostic Information and Procedures >> DTC P0562 >> Circuit/System Testing

Circuit/System Testing

WARNING: This page is about a different car, the 2006 Buick Lucerne. However, it is still accessible from the selected car via links, so may be relevant.
  1. Measure the voltage at the battery terminals and compare it with the Ignition 1 Signal parameter in the ECM data list. Verify that battery and Ignition 1 signal readings do not differ more than 1.0 volt.
    • If greater than 1.0 volt, test the Ignition 1 and ground circuits of the ECM for high resistance. If the circuits test normal replace the ECM.
  2. Go to Charging System Test 
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