Mazda 3 Workshop Manual page 279

Mazda 3 Workshop Manual – Engine + Wiring Diagrams + Diagnostic Trouble Codes
POSSIBLE CAUSE
Diagnostic procedure
STEP INSPECTION
1
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• This is a continuous monitor (CCM).
• The MIL illuminates if the PCM detects the above malfunction condition
during first drive cycle.
• 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.
• MAP sensor malfunction
• Connector or terminal malfunction
• Short to ground in wiring harness between MAP sensor terminal D and
PCM terminal 2AL
• Open circuit in wiring harness between MAP sensor terminal C and PCM
terminal 2W
• MAP sensor signal circuit and MAP sensor ground circuit are shorted each
other
• PCM malfunction
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