P1222
Read the instructions below then
start the fault diagnostic procedure.
Symptom: CHECK ENGINE lamp on.
Car in limp-home mode.
A/C relay disengaged.
Cruise control does not work.
Pump Rattle Detection.
Fault symptoms
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Cruise control does not work.
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Conditions
The following conditions apply for this DTC:
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Mechanical fault. The diagnosis compares the difference between the present injection duration from the camshaft (pump) sensor and the previous injection duration. A major difference indicates a mechanical fault that may damage the pump. A diagnostic trouble code can be generated if there is air in the pump or if the fuel filter is blocked.
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Diagnostic help
Check the fuel supply and return lines. If necessary, change the filter.
