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Home >> Toyota >> 1988 >> Camry Base, Standard >> Repair and Diagnosis >> Engine Performance >> System >> Computer Control System >> Component Testing >> Idle Speed Control (ISC) Valve >> Camry 2.0L
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Camry 2.0L

  1. Warm engine to normal operating temperature. Ensure idle speed is correct. Apply parking brake and place transaxle in Neutral. Install jumper wire between terminals "T" and "E1" of check connector located near left shock tower. See Figure through Figure .
  2. Note that engine RPM is maintained at 1000-1300 RPM for 5 seconds then returns to idle on Camry.
  3. If engine RPM was not within specification, disconnect ISC valve connector. Using ohmmeter, measure resistance between terminals "B +" and "ISC1" AND "ISC2". See Figure through Figure . Replace valve if resistance is not within 16-17 ohms.
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