DTC P2004 [LF]: Notes

DTC P2004 (LF) DETECTION CONDITION AND POSSIBLE CAUSE

DTC P2004	Variable tumble shutter valve stuck open
DETECTION CONDITION	The PCM monitors mass the variable tumble shutter valve position using the variable tumble shutter valve switch. If the PCM turns the variable tumble solenoid valve on but the variable tumble shutter valve position still remain open (variable tumble shutter valve switch off), the 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 above malfunction condition in two consecutive drive cycles or in one drive cycle while DTC for the same malfunction has been stored in PCM. PENDING CODE is available if the PCM detects the above malfunction condition during the 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 Variable tumble shutter valve switch connector or terminals malfunction PCM connector or terminals malfunction Short to power supply in wiring harness between variable tumble solenoid valve terminal B and PCM terminal 2I Short to power supply in wiring harness between variable tumble shutter valve switch terminal A and PCM terminal 2AE 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 variable tumble solenoid valve terminal B and PCM terminal 2I Open circuit in wiring harness between variable tumble shutter valve switch terminal A and PCM terminal 2AE Miss connecting or pull out the vacuum hose PCM malfunction
Courtesy of MAZDA MOTORS CORP.

DTC P2004

Variable tumble shutter valve stuck open

DETECTION CONDITION

The PCM monitors mass the variable tumble shutter valve position using the variable tumble shutter valve switch. If the PCM turns the variable tumble solenoid valve on but the variable tumble shutter valve position still remain open (variable tumble shutter valve switch off), the 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 above malfunction condition in two consecutive drive cycles or in one drive cycle while DTC for the same malfunction has been stored in PCM.
PENDING CODE is available if the PCM detects the above malfunction condition during the 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
Variable tumble shutter valve switch connector or terminals malfunction
PCM connector or terminals malfunction
Short to power supply in wiring harness between variable tumble solenoid valve terminal B and PCM terminal 2I
Short to power supply in wiring harness between variable tumble shutter valve switch terminal A and PCM terminal 2AE
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 variable tumble solenoid valve terminal B and PCM terminal 2I
Open circuit in wiring harness between variable tumble shutter valve switch terminal A and PCM terminal 2AE
Miss connecting or pull out the vacuum hose
PCM malfunction

Courtesy of MAZDA MOTORS CORP.