Map Sensor Operation Test: Notes

2011 Volkswagen Routan SESECTION Notes
Fig 1: Map Sensor Wiring Diagram
GWWUS74945Courtesy of VOLKSWAGEN GROUP OF AMERICA, INC.

For a complete wiring diagram, refer to appropriate Wiring Diagram.

Test Step 1 - MAP Sensor Wiring and Connectors 

NOTE:

Diagnose and resolve any MAP sensor DTCs before proceeding with this test.

  • Turn the ignition off.
  • Using the wiring diagram/schematic as a guide, inspect the wiring and connectors between the MAP sensor and the PCM.
  • Look for any chafed, pierced, pinched, or partially broken wires.
  • Look for broken, bent, pushed out or corroded terminals.
  • Turn the ignition on.
  • Monitor the scan tool data relative to the sensor and wiggle test the wiring and connectors.
  • Look for the data to change or for a DTC to set during the wiggle test. If necessary, check each sensor circuit for high resistance or a shorted condition.

Were any problems found?

Yes

No

RENDER: 1.0x

NO RELATED

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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.