Reductant Injection Valve Circuit/Open Bank 1 Unit 2
Table of contents
P2053 MERCEDES-BENZ Possible Causes
- Faulty Reductant Injection Valve
- Reductant Injection Valve harness is open or shorted
- Reductant Injection Valve circuit poor electrical connection
How do I fix code P2053 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.
Tech Notes
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Cost of diagnosing the P2053 MERCEDES-BENZ code
The cost of diagnosing the P2053 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.
Possible Symptoms
- Engine Light ON (or Service Engine Soon Warning Light)
P2053 MERCEDES-BENZ Description
The Reductant Dosing Valve (Reductant Injection Valve) is used to meter and atomize the reductant liquid before it is mixed with the exhaust gas. Normal operating frequency is between 3 Hz and .3 Hz. The cooling body contains heat sink fins to keep the injector and reductant below the boiling point. If the sensed temperature is nearing the maximum temperature threshold, reductant spray will be increased in quantity to actively cool the valve.