AutoCodes - Mercedes-benz - P0204 MERCEDES-BENZ

P0204 MERCEDES-BENZ Code - Injector Circuit/Open Cylinder 4

Repair Importance Level: 3/3
Repair Difficulty Level: 3/3
Table of contents

|P0204 MERCEDES-BENZ code possible causes

  • Faulty fuel injector 4
  • Fuel Injector 4 harness is open or shorted
  • Fuel injector 4 circuit poor electrical connection
  • Faulty Engine Control Module (ECM)

|How do I fix the P0204 MERCEDES-BENZ code?

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's pins.

|P0204 MERCEDES-BENZ code tech notes

Mercedes Benz Code = 0307 The injection valve output stage of cylinder 4 detects a line discontinuity. (P0204)

|Cost of diagnosing the P0204 MERCEDES-BENZ code

Labor: 1.0

The cost of diagnosing the P0204 MERCEDES-BENZ code is 1.0 hour of labor. The auto repair's diagnosis time and labor rates vary by location, vehicle's make and model, and even your engine type. Most auto repair shops charge between $75 and $150 per hour.

|What are P0204 MERCEDES-BENZ 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

|P0204 MERCEDES-BENZ code description

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 4.
OBDII Code P0204 Mercedes-benz - Injector Circuit/Open Cylinder 4 -

|Need more information with the P0204 MERCEDES-BENZ code?

Need more information on how to fix the P0204 MERCEDES-BENZ code? Get Access to Factory Service Manuals

|Need help with a P0204 MERCEDES-BENZ code?

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|P0204 MERCEDES-BENZ code comments

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