P2229 Sensor 'Ambient pressure' in control module Motor electronics (P2229) Possible cause: N3/10 (MESFI [ME] control unit) Affected functions: Engine diagnosis Test 1: Test control unit. 1. Test control unit. Test control unit. 10.52SS Page 3532010 Mercedes Benz E 63 AMG Sedan (212.077) V86.3L (156.985) Copyright ? 2013, ALLDATA 10.52SS Page 354 Possible cause and remedy Erase fault memory and start engine. Reread fault memory of control unit N3/10 (MESFI [ME] control unit).If fault reoccurs, replace component N3/10 (MESFI [ME] control unit). Read coding and transfer to the new control unit.End of test
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