Mazda 6 - Dtc P0661

F2–154
ON-BOARD DIAGNOSTIC
DTC P0661
B6E407000600107
DTC P0661 Intake shutter solenoid valve (half) circuit low input
DETECTION
CONDITION
• The PCM monitors the output signal to the intake shutter solenoid valve (half) when the intake shutter
solenoid valve (half) is off. If the intake shutter solenoid valve (half) voltage is less than 7.8 V when the
intake shutter solenoid valve (half) off, the PCM determines that there is a malfunction in the intake shutter
solenoid valve control circuit.
Diagnostic support note
• 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
• Intake shutter solenoid valve malfunction
• Connector or terminal malfunction
• Short to GND in wiring harness between intake shutter solenoid valve (half) terminal B and PCM terminal
74
• Open circuit in wiring harness between intake shutter solenoid valve (half) terminal A and PCM control
relay terminal C
• Open circuit in wiring harness between intake shutter solenoid valve (half) terminal B and PCM terminal 74
• PCM malfunction
A
B74
4
4
7
5
6 9
8
PCM
WIRING HARNESS-SIDE
CONNECTOR
INTAKE SHUTTER
SOLENOID VALVE (FULL)
WIRING HARNESS-SIDE
CONNECTOR
INTAKE SHUTTER
SOLENOID VALVE
(FULL)
PCM CONTROL RELAY
TERMINAL C
PCM
B
A
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