mazda Workshop Repair Guides

Mazda Workshop Service and Repair Manuals

Cold Start and Load Compensation Idle Control|Page 1687 > < Cold Start and Load Compensation Idle Control
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IAC valve air passage

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Open or short circuit between IAC valve connector terminals and PCM connector terminals 54 and 83

4. Warm up the engine to normal operating temperature and run it at idle.
5. Select the PID/DATA MONITOR AND RECORD function on the NGS display.
6. Select the following PIDs.

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A/C SW

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IACV

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PSP SW

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RPM

Engine Speed

7. Turn the electrical loads on and verify that the engine speed is within the specification.

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If not as specified, carry out the following:
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A/C switch inspection

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P/S pressure switch inspection

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IAC valve inspection

NOTE:  Excludes temporary idle speed drop just after the loads are turned on.

Cold Start and Load Compensation Idle Control|Page 1687 > < Cold Start and Load Compensation Idle Control