Dtc P2009 [Lf] - Mazda 3 Workshop Manual

Mazda 3 Workshop Manual – Engine + Wiring Diagrams + Diagnostic Trouble Codes
DTC P2009
DETECTION
CONDITION
POSSIBLE CAUSE
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DTC P2009 [LF]

Variable tumble solenoid valve circuit low input
• The PCM monitors variable tumble solenoid valve control signal at PCM
terminal 2AI. If the PCM turns variable tumble solenoid valve off but voltage
at PCM terminal 2AI still remains low, the PCM determines that variable
tumble solenoid valve circuit has malfunction.
Diagnostic support note
• This is a continuous monitor (CCM).
• 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 first drive cycle.
• FREEZE FRAME DATA is available.
• The DTC is stored in the PCM memory.
• Poor connection of connectors at PCM and/or variable tumble solenoid
valve
• Short to ground in wiring harness between variable tumble solenoid valve
terminal B and PCM terminal 2AI
• Open circuit in wiring harness between main relay and variable tumble
solenoid valve terminal A
• Open circuit in wiring harness between variable tumble solenoid valve
terminal B and PCM terminal 2AI
• Variable tumble solenoid valve malfunction
• PCM malfunction
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