DTC P2004:00: Notes

DTC P2004:00	Variable tumble shutter valve stuck open
DETECTION CONDITION	The PCM monitors the variable tumble shutter valve position using the variable tumble shutter valve position sensor. If the PCM turns the variable tumble solenoid valve on but the variable tumble shutter valve position still remain open for 5 s (the variable tumble shutter valve position sensor off), the PCM determines that the variable tumble shutter valve has been stuck open. 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 Variable tumble solenoid valve malfunction Variable tumble shutter valve position sensor connector or terminals malfunction Variable tumble shutter valve actuator malfunction (stuck open) PCM connector or terminals malfunction Short to power supply in wiring harness between the following terminals: Variable tumble solenoid valve terminal B-PCM terminal 2I Variable tumble shutter valve position sensor terminal C-PCM terminal 2R Open circuit in wiring harness between the following terminals: Variable tumble solenoid valve terminal B-PCM terminal 2I Variable tumble shutter valve position sensor terminal C-PCM terminal 2R Variable tumble shutter valve position sensor malfunction Miss connecting or pull out the vacuum hose PCM malfunction
Courtesy of MAZDA MOTORS CORP.