DTC P2009:00: Notes

DTC P2009:00	Variable tumble solenoid valve circuit low input
DETECTION CONDITION	The PCM monitors variable tumble solenoid valve control signal. If the PCM turns variable tumble solenoid valve off but voltage still remains low for 5 s , the PCM determines that variable tumble solenoid valve control circuit has malfunction. Diagnostic support note This is a continuous monitor (CCM). The check engine light 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 (Mode 2)/Snapshot data is available. The DTC is stored in the PCM memory.
FAIL-SAFE FUNCTION	-
POSSIBLE CAUSE	Variable tumble solenoid valve connector or terminals malfunction Short to ground or open circuit in variable tumble solenoid valve power supply circuit Short to ground in wiring harness between ENG BAR 15 A fuse and variable tumble solenoid valve terminal A ENG BAR 15 A fuse malfunction Open circuit in wiring harness between main relay terminal C and variable tumble solenoid valve terminal A Short to ground in wiring harness between variable tumble solenoid valve terminal B and PCM terminal 2I Variable tumble solenoid valve malfunction PCM connector or terminals malfunction Open circuit in wiring harness between variable tumble solenoid valve terminal B and PCM terminal 2I PCM malfunction
Courtesy of MAZDA MOTORS CORP.