Engine-Codes - Mercedes-Benz - P0728 Mercedes-Benz

P0728 Mercedes-Benz Code - Engine Speed Input Circuit Intermittent

- Code Popularity: 2,923 Views
- Repair Importance Level: 3/3
- Repair Difficulty Level: 3/3
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What are the Possible Causes of the DTC P0728 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 Crankshaft Position (CKP) Sensor
  • Crankshaft Position (CKP) Sensor harness is open or shorted
  • Crankshaft Position (CKP) Sensor circuit poor electrical connection
  • Communication error between the Engine Control Module (ECM) and Transmission Control Module (TCM)
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How to Fix the DTC P0728 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 P0728 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.

When is the Code Detected?

The P0728 Codes is triggered when the TCM detected that the engine speed received from the ECM is intermittent.

What are Code Possible Symptoms?

  • Engine Light ON (or Service Engine Soon Warning Light)

What Does the P0728 Mercedes-Benz Code Mean?

The Engine Control Module (ECM) monitors the engine speed through the Crankshaft Position (CKP) sensor with the engine running, and send signal to the Transmission Control Module (TCM).

P0728 Mercedes-Benz Code - Engine Speed Input Circuit Intermittent

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