Engine-Codes - Mercedes-Benz - P0202 Mercedes-Benz

P0202 Mercedes-Benz Code - Injector Circuit/Open Cylinder 2

- Code Popularity: 18,136 Views
- Repair Importance Level: 3/3
- Repair Difficulty Level: 3/3
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What are the Possible Causes of the DTC P0202 Mercedes-Benz?

NOTE: The causes shown may not be a complete list of all potential problems, and it is possible that there may be other causes.
  • Faulty fuel injector 2
  • Fuel Injector 2 harness is open or shorted
  • Fuel Injector #2 circuit poor electrical connection
  • Faulty Engine Control Module (ECM)

Code Tech Notes

Mercedes Benz Code = 0319 The injection valve output stage of cylinder 2 detects a line discontinuity. (P0202)

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How to Fix the DTC P0202 Mercedes-Benz?

Check the 'Possible Causes' listed above. Visually inspect the related wiring harness and connectors. Check for damaged components and look for broken, bent, pushed out, or corroded connector pins.

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What is the Cost to Diagnose the Code?

Labor: 1.0

The cost to diagnose the P0202 Mercedes-Benz code is 1.0 hour of labor. The diagnosis time and labor rates at auto repair shops vary depending on the location, make and model of the vehicle, and even the engine type. Most auto repair shops charge between $75 and $150 per hour.

What are Code Possible Symptoms?

  • Engine Light ON (or Service Engine Soon Warning Light)
  • Lack/Loss of Power
  • The engine may be harder to start
  • Engine hesitation

What Does the P0202 Mercedes-Benz Code Mean?

This fault code is stored in the Engine Control Module (ECM) when the injector control circuit does not behave as expected. The ECM uses the induced voltage from the injector to indicate that the fuel injector circuit is operating correctly electrically. It does not signal the mechanical condition of the injector. When the ECM opens the ground circuit for an injector (to cease current flow) a voltage is induced into the winding. This voltage shows the electrical integrity of the injector and associated wiring. Absence of this induced voltage results in a fault code being stored in the ECM. This code is generated if the fault is associated with cylinder 2.

P0202 Mercedes-Benz Code - Injector Circuit/Open Cylinder 2

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