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Home › Chevrolet › 2006 › Optra LS, Standard › Repair and Diagnosis › Engine Performance › System › Engine Controls - 1.4L DOHC › Diagnostic Information and Procedures › DTC P0510 › Component Testing

Component Testing

  1. Ignition OFF, disconnect the harness connector of the ISC motor.
  2. Measure the resistance between the idle switch position terminal and low reference circuit terminal of the ISC motor.
    • If the resistance does not change as the throttle is opened and closed, replace the throttle body.
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