# Mercedes benz – 211.056 E350 Gasoline – P1856 Shift lever position detection failed.
18/06/2020 | Author: admin | No comments | Categories: Diagnostics • Mercedes benz
# Symptom,
you can start the vehicle in park or nuetral, the instrument cluster displays the correct gear such as, P R N D, when you Go from Park to Drive you can no longer go back into reverse, you need to switch of the ignition and then you can select reverse or park.
# Testing
live data shows the error in which the ESM-Electronic selector module fails which position the gear selecting fails, there is 2 types of errors one where the selector is not selecting a gear type and the other where the CAN BUS signal is lost. below you will find a video of the live data captured to know that the park position doesnot work after the fault has appeared you can no longer select reverse or park.
# Repair and post testing
the same live data will be used to test the ESM-Electronic selector module switch that it now operates.
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