DTC P2004:00 [L5]: Notes

WARNING: This page is about a different car, the 2009 Mazda 6. However, it is still accessible from the selected car via links, so may be relevant.

DETECTION CONDITION & POSSIBLE CAUSES

DTC P2004:00	Variable tumble shutter valve stuck open
DETECTION CONDITION	The PCM monitors mass the variable tumble shutter valve position using the variable tumble position sensor. If the PCM turns the variable tumble solenoid valve on but the variable tumble position still remain open for 5 s (the variable tumble position sensor off), PCM determines that the variable tumble shutter valve has been stuck open. 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 the first drive cycle. FREEZE FRAME DATA is available. The DTC is stored in the PCM memory.
POSSIBLE CAUSE	Variable tumble solenoid valve connector or terminal malfunction Variable tumble shutter valve switch connector or terminal malfunction PCM connector or terminal malfunction Short to power supply in wiring harness between the variable tumble solenoid valve terminal B and the PCM terminal 21 Short to power supply in wiring harness between the variable tumble shutter valve switch terminal C and the PCM terminal 2R Variable tumble solenoid valve malfunction Variable tumble shutter valve actuator malfunction (stuck open) Variable tumble shutter valve switch malfunction Open circuit in wiring harness between the variable tumble solenoid valve terminal B and the PCM terminal 2I Open circuit in wiring harness between the variable tumble shutter valve switch terminal C and the PCM terminal 2R Miss connecting or pull out the vacuum hose PCM malfunction
Courtesy of MAZDA MOTORS CORP.

DTC P2004:00

Variable tumble shutter valve stuck open

DETECTION CONDITION

The PCM monitors mass the variable tumble shutter valve position using the variable tumble position sensor. If the PCM turns the variable tumble solenoid valve on but the variable tumble position still remain open for 5 s (the variable tumble position sensor off), PCM determines that the variable tumble shutter valve has been stuck open.

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 the first drive cycle.
FREEZE FRAME DATA is available.
The DTC is stored in the PCM memory.

POSSIBLE CAUSE

Variable tumble solenoid valve connector or terminal malfunction
Variable tumble shutter valve switch connector or terminal malfunction
PCM connector or terminal malfunction
Short to power supply in wiring harness between the variable tumble solenoid valve terminal B and the PCM terminal 21
Short to power supply in wiring harness between the variable tumble shutter valve switch terminal C and the PCM terminal 2R
Variable tumble solenoid valve malfunction
Variable tumble shutter valve actuator malfunction (stuck open)
Variable tumble shutter valve switch malfunction
Open circuit in wiring harness between the variable tumble solenoid valve terminal B and the PCM terminal 2I
Open circuit in wiring harness between the variable tumble shutter valve switch terminal C and the PCM terminal 2R
Miss connecting or pull out the vacuum hose
PCM malfunction

Courtesy of MAZDA MOTORS CORP.