Mazda 3 Workshop Manual page 161

Mazda 3 Workshop Manual – Engine + Wiring Diagrams + Diagnostic Trouble Codes
POSSIBLE CAUSE
Diagnostic procedure
Downloaded from
• PENDING CODE is available if the PCM detects the above malfunction
condition.
• FREEZE FRAME DATA is available.
• The DTC is stored in the PCM memory.
• IAC valve malfunction
• Connector or terminal malfunction
• Open circuit in wiring harness between IAC valve terminal A and PCM
terminal 2X
• Short to power supply in wiring harness between IAC valve terminal A and
PCM terminal 2X
• Short to GND in wiring harness between IAC valve terminal A and PCM
terminal 2X
• Open circuit in wiring harness between IAC valve terminal B and PCM
terminal 2AB
• Short to power supply in wiring harness between IAC valve terminal B and
PCM terminal 2AB
• Short to GND in wiring harness between IAC valve terminal B and PCM
terminal 2AB
• PCM malfunction
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