Dtc P0661 [Lf] - Mazda 3 Workshop Manual

Mazda 3 Workshop Manual – Engine + Wiring Diagrams + Diagnostic Trouble Codes
VERIFY TROUBLESHOOTING OF DTC
P0610 COMPLETED
• Make sure to reconnect all disconnected
connectors.
• Turn the ignition switch to the ON
3
position (Engine off).
• Clear the DTC from the PCM memory
using the WDS or equivalent.
• Start the engine.
• Is the same DTC present?
VERIFY AFTER REPAIR PROCEDURE
• Perform the "After Repair Procedure".
4
(See AFTER REPAIR PROCEDURE
[LF].)
• Are any DTC present?
DTC P0661
DETECTION
CONDITION
POSSIBLE CAUSE
Downloaded from
Yes
No Go to the next step.
Yes
No Troubleshooting completed.

DTC P0661 [LF]

Variable intake-air solenoid valve circuit low input
• The PCM monitors the variable intake-air solenoid valve control signal at
PCM terminal 2AJ. If the PCM turns variable intake-air solenoid valve off but
voltage at PCM terminal 2AJ still remains low, the PCM determines that
variable intake-air solenoid valve circuit has malfunction.
Diagnostic support note
• This is a continuous monitor (other).
• The MIL does not illuminate.
• PENDING CODE is available if the PCM detects the above malfunction
condition.
• The FREEZE FRAME DATA is not available.
• The DTC is stored in the PCM memory.
• Variable intake-air solenoid valve malfunction
• Open circuit in wiring harness between main relay and variable intake-air
solenoid valve terminal B
• Open circuit in wiring harness between variable intake-air solenoid valve
terminal A and PCM terminal 2AJ
• Short to ground in wiring harness between variable intake-air solenoid valve
terminal A and PCM terminal 2AJ
• Connector or terminal malfunction
https://carmanualshub.com/
Replace the PCM, then go to the next step.
(See PCM REMOVAL/INSTALLATION
Go to the applicable DTC troubleshooting.
(See DTC TABLE [LF].)
- automotive repair manuals website
[LF].)
B3E010201088W03