Mike's Workshop Manuals: Service manuals for every vehicle
Home >> Saab >> 2011 >> 9-4X 3.0i, AWD >> Repair and Diagnosis >> Electrical >> Charging Systems >> Charging And Starting System >> Fault diagnosis, fault codes >> DTC P0622: Generator F-Terminal Circuit >> Circuit/System Testing

Circuit/System Testing

  1. Verify that a test lamp illuminates between the G13 generator B+ terminal A X2 and ground.
  2. If the test lamp does not illuminate, test the B+ circuit for a short to ground or an open/high resistance.
  3. Ignition OFF, disconnect the X1 harness connector at the G13 generator.
  4. Ignition ON, verify the scan tool ECM GEN-F Terminal Signal parameter displays less than 5 percent.
  5. If greater than the specified range, test the signal circuit pin 2 for a short to voltage. If the circuit tests normal, replace the K20 ECM.
  6. Install a 3 A fused jumper wire between B+ and the signal circuit terminal 2.
  7. Verify the scan tool ECM GEN-F Terminal Signal parameter displays greater than 95 percent.
  8. If less than the specified range, test the signal circuit terminal 2 for a short to ground or an open/high resistance. If the circuit tests normal, replace the K20 ECM.
  9. If the circuit tests normal replace the G13 generator.
scientia non olet · About Mike's Workshop Manuals