LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Nissan-Datsun >> 1985 >> Maxima SE >> Repair and Diagnosis >> Engine Performance >> System >> ECC CEC System >> Self-Diagnostic System >> Component Testing >> Auxiliary Air Control Valve
April 5, 2026: LEMON Manuals is launched! Read the announcement.

Auxiliary Air Control Valve

  1. Disconnect 20-pin connector. Check voltage between terminal 2 and ground when ignition is on. See Figure . If battery voltage is present, test is complete. If not present, check harness and repair if necessary. If okay, check fuel pump relay.
    Fig 1: Measuring Voltage at Terminals 2 and Ground
    G42385
  2. Check for continuity between terminals 1-2 and 3-4. There should be continuity at 1-2 and no continuity at 3-4. Apply 12 volts to terminals 1-2. There now should be continuity between terminals 3-4. See Figure . If no good, replace relay. If okay, go to next step.
  3. Check AAC valve for continuity between terminal and ground. Continuity should exist. If there is no continuity, replace AAC valve.
scientia non olet · About LEMON Manuals