DTC P0661:00 [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 P0661:00	Variable intake air solenoid valve circuit low input
DETECTION CONDITION	The PCM monitors the variable intake air solenoid valve control signal If the PCM turns the variable' intake air solenoid valve off but the voltage still remains low, the PCM determines that the variable intake air solenoid valve circuit has malfunction Diagnostic support note This is a continuous monitor (other). The MIL does not illuminate. FREEZE FRAME DATA is not available The DTC is stored in the PCM memory
POSSIBLE CAUSE	Variable intake air solenoid valve connector or terminal malfunction Short to ground in wiring harness between variable intake air solenoid valve terminal A and main relay terminal D Open circuit in wiring harness between variable intake air solenoid valve terminal A and main relay terminal D PCM connector or terminal malfunction Short to ground in wiring harness between variable intake air solenoid valve terminal B and PCM terminal 2J Variable intake air solenoid valve malfunction Open circuit in wiring harness between variable intake air solenoid valve terminal B and PCM terminal 2J PCM malfunction
Courtesy of MAZDA MOTORS CORP.

DTC P0661:00

Variable intake air solenoid valve circuit low input

DETECTION CONDITION

The PCM monitors the variable intake air solenoid valve control signal If the PCM turns the variable' intake air solenoid valve off but the voltage still remains low, the PCM determines that the variable intake air solenoid valve circuit has malfunction

Diagnostic support note

This is a continuous monitor (other).
The MIL does not illuminate.
FREEZE FRAME DATA is not available
The DTC is stored in the PCM memory

POSSIBLE CAUSE

Variable intake air solenoid valve connector or terminal malfunction
Short to ground in wiring harness between variable intake air solenoid valve terminal A and main relay terminal D
Open circuit in wiring harness between variable intake air solenoid valve terminal A and main relay terminal D
PCM connector or terminal malfunction
Short to ground in wiring harness between variable intake air solenoid valve terminal B and PCM terminal 2J
Variable intake air solenoid valve malfunction
Open circuit in wiring harness between variable intake air solenoid valve terminal B and PCM terminal 2J
PCM malfunction

Courtesy of MAZDA MOTORS CORP.