Dtc P1211 - Mazda 6 Workshop Manual

STEP
10 VERIFY AFTER REPAIR PROCEDURE
• Perform the Repair Verification Drive Mode.
(See F2–39 OBD DRIVE
• Are any DTCs present?
End Of Sie

DTC P1211

DTC P1211 Fuel pressure higher or lower than desired pressure
• The PCM monitors the fuel pressure and calculates the fuel supply volume to the common rail using the
fuel pressure sensor input signal while the engine is running. If the fuel pressure or fuel supply volume to
the common rail is as follows, the PCM determines that the fuel pressure is higher or lower than the desired
pressure.
— Supply pump actual pressure is higher than threshold.
— Difference between two consecutive fuel supply to common rail volume from supply pump is more than
DETECTION
one fuel injection volume by fuel injector.
CONDITION
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.
• FREEZE FRAME DATA is available.
• The DTC is stored in the PCM memory.
• Suction control valve malfunction
• Fuel pressure sensor characteristic malfunction
POSSIBLE
• Fuel pressure limiter malfunction
CAUSE
• Supply pump malfunction
• PCM malfunction
ON-BOARD DIAGNOSTIC
INSPECTION
MODE.)
Yes Go to the applicable DTC troubleshooting.
(See F2–40 DTC TABLE.)
No Troubleshooting completed.
ACTION
B6E407001200101
F2–169
F2