DTC P2009 [LF]: Notes

DTC P2009 (LF) DETECTION CONDITION AND POSSIBLE CAUSE

DTC P2009	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, 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 (Mode 2/Mode 12) is available. The DTC is stored in the PCM memory.
POSSIBLE CAUSE	Variable tumble solenoid valve connector or terminals malfunction Open circuit or short to ground in variable tumble solenoid valve power supply circuit Short to ground in wiring harness between main relay and variable tumble solenoid valve terminal A Variable tumble solenoid valve power supply circuit related fuse malfunction Open circuit in wiring harness between main relay and variable tumble solenoid valve terminal A Variable tumble solenoid valve malfunction Short to ground in wiring harness between variable tumble solenoid valve terminal B and PCM terminal 2I 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.

DTC P2009

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, 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 (Mode 2/Mode 12) is available.
The DTC is stored in the PCM memory.

POSSIBLE CAUSE

Variable tumble solenoid valve connector or terminals malfunction
Open circuit or short to ground in variable tumble solenoid valve power supply circuit
- Short to ground in wiring harness between main relay and variable tumble solenoid valve terminal A
- Variable tumble solenoid valve power supply circuit related fuse malfunction
- Open circuit in wiring harness between main relay and variable tumble solenoid valve terminal A
Variable tumble solenoid valve malfunction
Short to ground in wiring harness between variable tumble solenoid valve terminal B and PCM terminal 2I
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.