Mercedes Benz A 160 (168) Automatic 2001 - Gear Recognition Module, codes P1856 and P1872 stored #Archived Message
Posted by Martin Kelly on May 24, 2010, 10:54 pm
This came in with multiple codes in Engine, Transmission, Gear Recognition Module and ABS after someone else had looked at it. I cleared all the codes, none of them returned, and advised the customer to drive it until a light came on or pop back in about 10 days. They returned after 10 days, no warning lights on and the only codes that have come back are in the GRM (gear recognition module).Scanned with Verus. P1856 ECU transmission range REC/touch function stored code P1872 CAN Ewm communication or selector lever implausible code The driver says the car drives fine. I have not had any experience with these GRM units so any help would be appreciated. Is it worn cables or gear lever selector assembly?