Note
Operation Test
Carry out the Idle Air Control Inspection. (See Idle Air Control System Inspection.)
Resistance Inspection
1. Disconnect the negative battery cable.
2. Disconnect the IAC valve connector.
3. Measure the resistance between the IAC valve terminals using an ohmmeter.
Specification
Circuit Open/Short Inspection
1. Disconnect the PCM connector. (See PCM REMOVAL/INSTALLATION.)
2. Inspect the following wiring harnesses for open or short (continuity check).
Open circuit
- IAC valve terminal A (harness-side) and PCM terminal 4G
- IAC valve terminal B (harness-side) and PCM terminal 4J
Short circuit
- IAC valve terminal A (harness-side) and power supply
- IAC valve terminal A (harness-side) and GND
- IAC valve terminal B (harness-side) and power supply
- IAC valve terminal B (harness-side) and GND
Mazda 6 Service Manual: Operating the Satellite Radio (Some models)
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Mazda 6 Service Manual: Intake air temperature (iat) sensor inspection
Resistance Inspection
Note
Perform the following inspection only when directed.
1. Disconnect MAF/IAT sensor.
2. Measure the resistance between the MAF/IAT sensor terminals D and E using
an ohmmeter.
If not as specified, replace the MAF/IAT sensor.
If the MAF/IAT sensor is okay, but ...