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Home >> Suzuki >> 2008 >> Swift + >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls And Fuel - 1.6L - DTC P0630 To DTC P2282 >> DTC P1516, P2101, or P2119 >> Circuit/System Testing
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Circuit/System Testing

  1. Inspect the throttle body for the following conditions:
    • A throttle blade that is not in the rest position
    • A throttle valve that is binding open or closed
    • A throttle valve that opens or closes without spring pressure
    • If any condition is found, replace the throttle body.
    2. IMPORTANT: Disconnecting the throttle body harness connector causes additional DTCs to set.
  2. Ignition OFF, disconnect the harness connector at the throttle body.
  3. Ignition ON, test for less than 0.5 volt on the motor control 1 circuit terminal 5 and motor control 2 circuit terminal 8.
    • If greater than the specified range, test the appropriate motor control circuit for a short to voltage. If the circuit tests normal, replace the ECM.
  4. Ignition OFF, probe the motor control 1 circuit terminal 5 and motor control 2 circuit terminal 8 with a test lamp connected to B+. Verify the test lamp does not illuminate.
    • If the test lamp illuminates, test the appropriate motor control circuit for a short to ground. If the circuit tests normal, replace the ECM.
  5. Connect the test lamp between the motor control 1 circuit terminal 5 and motor control 2 circuit terminal 8. Observe the test lamp while turning the ignition ON for 5 seconds and then OFF. Verify the test lamp illuminates.
    • If the test lamp does not illuminate, test each motor control circuit for an open or for a short between the motor control 1 and motor control 2 circuits. If the circuit tests normal, replace the ECM.
  6. If all circuits test normal, test or replace the throttle body.
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