2007 Chrysler Crossfire Base, 2D ConvertibleFACTORY OEM SERVICE PROCEDURE

P0521-Engine Oil Sensor Level Performance: Notes

Fig 1: Engine Oil Level Sensor Circuit Schematic
GC0034301Courtesy of CHRYSLER LLC
  1. When Monitored  : With the ignition on, engine running.
  2. Set Condition  : Anytime the Powertrain Control Module (PCM) senses the Oil Level with the engine off is outside the values of 34 - 62 mm (1.34 - 2.44 in.) and with the engine running, the values of 15 - 45 mm (0.59 - 1.77 in.).

Note: Check and verify that the engine oil level is at the appropriate level.

Possible Causes 
OIL SENSOR SIGNAL CIRCUIT OPEN
OIL SENSOR SIGNAL CIRCUIT SHORT TO GROUND
OIL SENSOR SIGNAL CIRCUIT SHORT TO VOLTAGE
5-VOLT SUPPLY CIRCUIT OPEN
5-VOLT SUPPLY CIRCUIT SHORT TO GROUND
5-VOLT SUPPLY CIRCUIT SHORT TO VOLTAGE
5-VOLT SUPPLY CIRCUIT SHORT TO SENSOR GROUND CIRCUIT
OIL SENSOR SIGNAL CIRCUIT SHORT TO SENSOR GROUND CIRCUIT
OIL SENSOR SIGNAL CIRCUIT SHORT TO 5-VOLT SUPPLY CIRCUIT
SENSOR GROUND CIRCUIT OPEN
MANIFOLD ABSOLUTE PRESSURE SENSOR
ENGINE OIL SENSOR
POWERTRAIN CONTROL MODULE

For a complete Powertrain Control Module Circuit Diagram, refer to SCHEMATICS AND DIAGRAMS .

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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • • You smell fuel, burning insulation, or see smoke.
  • • Brakes feel soft, pull hard to one side, or make grinding noises.
  • • The engine overheats, stalls repeatedly, or misfires under load.
  • • You are missing required tools, torque specs, or safe lifting equipment.
  • • You are not confident in the next step or safety outcome.