FixVault

Circuit/System Testing

  1. Verify DTC P0560 is set as current.
  2. Measure the voltage at the battery terminals and compare it with the scan tool ECM Ignition 1 signal parameter. Verify that the battery and Ignition 1 signal readings do not differ by more than 2.0 volts.
    • If greater than specified value, test the ignition 1 circuits X2 terminal 5, X2 terminal 54 and ground circuits X2 terminal 1, X2 terminal 2 and X2 terminal 4 for an open/high resistance.
  3. If all circuits test normal, replace the ECM.