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Mazda 3 Workshop Manual – Engine + Wiring Diagrams + Diagnostic Trouble Codes
5. Install in the reverse order of removal.
IDLE AIR CONTROL (IAC) VALVE INSPECTION [Z6]
Resistance Inspection
1. Disconnect the negative battery cable.
2. Disconnect the IAC valve connector.
3. Measure the resistance between IAC valve terminals A and B.
• If within the specification, carry out the "Circuit Open/Short Inspection".
• If not within the specification, replace the IAC valve.
Resistance
8.8-10.6 ohms [24°C {75 °F}]
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Troubleshooting
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