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AutoCodes - Mercedes-Benz - P0816 Mercedes-Benz

P0816 Mercedes-Benz Code - Downshift Switch Circuit

- Code Popularity: 2,135 Views
- Repair Importance Level: 3/3
- Repair Difficulty Level: 3/3
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By - Updated May 09, 2019
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|Code P0816 Mercedes-Benz Possible Causes

  • Faulty Downshift Switch
  • Downshift Switch harness is open or shorted
  • Downshift Switch circuit poor electrical connection

|How do I Fix the Code P0816 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's pins.

Does your Mercedes-Benz have Safety Recalls? → Check here

|What is the Cost to Diagnose the Code P0816 Mercedes-Benz?

Labor: 1.0

The cost of diagnosing the P0816 Mercedes-Benz code is 1.0 hour of labor. The auto repair labor rates vary by location, your vehicle's make and model, and even your engine type. Most auto repairs shops charge between $75 and $150 per hour.

|What are Code P0816 Mercedes-Benz Possible Symptoms?

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

|Code P0816 Mercedes-Benz Description

The Transmission Control Module (TCM) monitors the Downshift Switch Circuit signal. The TCM sets the OBDII code when the Downshift Switch Circuit signal is not to factory specifications.

OBDII Code P0816 Mercedes-Benz - Downshift Switch Circuit -
P0816 Mercedes-Benz Code - Downshift Switch Circuit

|Need More Information on the P0816 Mercedes-Benz Code?

Need more information on how to fix the P0816 Mercedes-Benz code? Get Access to Factory Service Manuals

|Need Help with the P0816 Mercedes-Benz Code?

Get the P0816 Mercedes-Benz code diagnosed by a professional: Find a repair shop in your area

|Code P0816 Mercedes-Benz comments

Help us improve Leave a comment below or tell us if the information above helps you fix the code. What are the symptoms on your vehicle for the P0816 Mercedes-Benz code? Have you replaced any parts?
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