DTC P2004:00: Notes

DTC P2004:00 (L3 WITH TC) DETECTION CONDITION & POSSIBLE CAUSES

DTC P2004:00	Variable swirl shutter valve stuck open
DETECTION CONDITION	The PCM monitors the mass variable swirl shutter valve position using the variable swirl shutter valve switch. If the PCM turns the variable swirl solenoid valve on but the variable swirl shutter valve position still remains open (variable swirl shutter valve switch is on), the PCM determines that the variable swirl shutter valve is 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 first drive cycle. FREEZE FRAME DATA (Mode 2)/Snapshot data is available. The DTC is stored in the PCM memory.
POSSIBLE CAUSE	Variable swirl solenoid valve connector or terminals malfunction Variable swirl shutter valve switch connector or terminals malfunction Variable swirl solenoid valve malfunction Variable swirl shutter valve switch malfunction Variable swirl shutter valve actuator malfunction (stuck open) Vacuum hose not connected correctly PCM connector or terminals malfunction Short to power supply in wiring harness between the following terminals: Variable swirl solenoid valve terminal B-PCM terminal 2AS Variable swirl shutter valve switch terminal A-PCM terminal 2AE Open circuit in wiring harness between the following terminals: Variable swirl solenoid valve terminal B-PCM terminal 2AS Variable swirl shutter valve switch terminal A-PCM terminal 2AE PCM malfunction
Courtesy of MAZDA MOTORS CORP.

DTC P2004:00

Variable swirl shutter valve stuck open

DETECTION CONDITION

The PCM monitors the mass variable swirl shutter valve position using the variable swirl shutter valve switch. If the PCM turns the variable swirl solenoid valve on but the variable swirl shutter valve position still remains open (variable swirl shutter valve switch is on), the PCM determines that the variable swirl shutter valve is 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 first drive cycle.
FREEZE FRAME DATA (Mode 2)/Snapshot data is available.
The DTC is stored in the PCM memory.

POSSIBLE CAUSE

Variable swirl solenoid valve connector or terminals malfunction
Variable swirl shutter valve switch connector or terminals malfunction
Variable swirl solenoid valve malfunction
Variable swirl shutter valve switch malfunction
Variable swirl shutter valve actuator malfunction (stuck open)
Vacuum hose not connected correctly
PCM connector or terminals malfunction
Short to power supply in wiring harness between the following terminals:
- Variable swirl solenoid valve terminal B-PCM terminal 2AS
- Variable swirl shutter valve switch terminal A-PCM terminal 2AE
Open circuit in wiring harness between the following terminals:
- Variable swirl solenoid valve terminal B-PCM terminal 2AS
- Variable swirl shutter valve switch terminal A-PCM terminal 2AE
PCM malfunction

Courtesy of MAZDA MOTORS CORP.