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Home >> Cadillac >> 2009 >> Escalade EXT >> Repair and Diagnosis >> External Pages >> Different car >> Section 117 (Battery, Charging System And Starting System) >> Diagnostic Information and Procedures >> DTC P0622 >> Circuit/System Verification
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Circuit/System Verification

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  1. Ignition ON, engine OFF, observe the scan tool ECM GEN-F Terminal Signal parameter. The parameter should read 0 percent.
  2. Engine running, observe the scan tool ECM GEN-F Terminal Signal parameter. The parameter should read between 5 and 99 percent.
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