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Home >> Pontiac >> 2009 >> Vibe Base, 2.4 0, AWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 152 (Automatic Transmission - 4T80-E - Diagnostic Information And Procedures) >> Diagnostic Information and Procedures >> DTC P0562 or P0563 >> Circuit/System Testing

Circuit/System Testing

WARNING: This page is about a different car, the 2011 Cadillac DTS. 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 on the scan tool. 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 TCM for high resistance. If the circuits test normal replace the TCM.
  2. Go to Charging System Test .
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