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Home >> Mazda >> 1983 >> RX-7 GSL, Standard >> Repair and Diagnosis >> Engine Performance >> System >> Idle Compensation System >> Component Testing >> Air Conditioner Solenoid Valve Signal Check
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Air Conditioner Solenoid Valve Signal Check

  1. Warm engine to normal operating temperature. Stop engine and connect tachometer. Connect a voltmeter to the air conditioner solenoid valve (White color dot) negative terminal. Start engine and turn air conditioner on.
  2. On automatic transmission models, current should NOT flow to solenoid valve at any engine speed. On manual transmission models, increase engine speed to 2000 RPM with throttle.
  3. Slowly decrease engine speed and watch voltmeter. Voltmeter should read near 0V when engine speed is 1000-1200 RPM. If valve does not respond as outlined, replace air conditioner solenoid valve.
NOTE: Before replacing air conditioner solenoid valve, check auxiliary control unit as outlined in AUXILIARY CONTROL DEVICE article.
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