Dtc P0661 - Mazda Mazda6 Workshop Manual Supplement

DTC P0661

DTC P0661 VSC solenoid valve circuit low input
• PCM monitors input voltage from VSC solenoid valve while engine is running. If input voltage from VSC
DETECTION
CONDITION solenoid valve is below 0.1 V, PCM determines suction control valve circuit low input.
• VSC solenoid valve malfunction
• Connector or terminal malfunction
• Short to GND in wiring between VSC solenoid valve terminal A and PCM control relay terminal C
POSSIBLE
• Short to GND in wiring between VSC solenoid valve terminal B and PCM terminal 101
CAUSE
• Open circuit in wiring between VSC solenoid valve terminal PCM control relay terminal C
• Open circuit in wiring between VSC solenoid valve terminal B and PCM terminal 101
• PCM malfunction
VSC SOLENOID VALVE
VSC SOLENOID VALVE
HARNESS SIDE CONNECTOR
Diagnostic procedure
STEP
1 PERFORM DTC CONFIRMATION PROCEDURE
• Perform "DTC Confirmation Procedure".
(See F2–85 DTC CONFIRMATION
PROCEDURE)
• Is same DTC present during KOEO or KOER
self-test?
F2–156
ON-BOARD DIAGNOSTIC
PCM CONTROL RELAY
3
A
4
B
B A
INSPECTION
TERMINAL C
6
5
3 6
101
HARNESS SIDE CONNECTOR
101
Yes Go to next step.
No Intermittent concern exists. Go to "Intermittent Concern
Troubleshooting".
(See F2–227 INTERMITTENT CONCERN
TROUBLESHOOTING)
PCM
PCM
ACTION
A6E407001082241