Diagnostic Trouble Code
P2633
More than one definition
Which fault description does your diagnostic tool show?
The same fault-code number can sometimes be used with different descriptions depending on the vehicle, manufacturer or control module. Choose the description that matches the information shown by your diagnostic equipment.
P2633
Charge Air System Offset Drift Under Engine Load — Mercedes CDI
The Mercedes engine-management system has detected a discrepancy in the charge-air system under load.
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P2633
Fuel Pump "B" Control Circuit Low — Generic OBD-II
The control module has detected a low electrical condition in the Fuel Pump B control circuit.
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Why can one code have different descriptions?
The code number alone does not always provide enough context. Check the exact description, vehicle and control module shown by your diagnostic equipment before beginning diagnosis.