Mazda 3 Workshop Manual page 189

Mazda 3 Workshop Manual – Engine + Wiring Diagrams + Diagnostic Trouble Codes
• The MIL illuminates if the PCM detects the above malfunction condition in
two consecutive drive cycles or in one drive cycle while the DTC for the same
malfunction has been stored in the PCM.
• PENDING CODE is available if the PCM detects the above malfunction
condition during the first drive cycle.
• FREEZE FRAME DATA is available.
• The DTC is stored in the PCM memory.
• Variable tumble shutter valve actuator malfunction
• Short to power supply in wiring harness between variable tumble shutter
valve actuator terminal A and PCM terminal 2AJ
• Short to ground in wiring harness between variable tumble shutter valve
actuator terminal A and PCM terminal 2AJ
• Open circuit in wiring harness between variable tumble shutter valve
actuator terminal A and PCM terminal 2AJ
• Short to power supply in wiring harness between variable tumble shutter
POSSIBLE CAUSE
valve actuator terminal B and PCM terminal 2AF
• Short to ground in wiring harness between variable tumble shutter valve
actuator terminal B and PCM terminal 2AF
• Open circuit in wiring harness between variable tumble shutter valve
actuator terminal B and PCM terminal 2AF
• Poor connection at variable tumble shutter valve actuator or PCM
• PCM malfunction
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