P0084 BMW Exhaust Valve Timing Control Magnet Retarder Circuit Bank 2
Possible causes
– Faulty Exhaust Valve Timing Control Magnet Retarder
– Exhaust Valve Timing Control Magnet Retarder harness is open or shorted
– Exhaust Valve Timing Control Magnet Retarder poor electrical circuit connector
– Exhaust Valve Timing Control Magnet Retarder harness is open or shorted
– Exhaust Valve Timing Control Magnet Retarder poor electrical circuit connector
What about the obd code?
An improper voltage is sent to the Engine Control Module (ECM) through exhaust valve timing control magnet retarder.
Symptoms
– Engine Light ON (or Service Engine Soon Warning Light)
P0084 BMW Description
Exhaust valve timing control magnet retarder controls the shut/open timing of the exhaust valve by ON/OFF pulse duty signals sent from the Engine Control Module (ECM). The longer pulse width retards valve angle. The shorter pulse width advances valve angle.
BMW Vehicle:BMW F650GS,BMW F800S,BMW F800ST,BMW G450X,BMW G650 Xmoto,BMW R1200GS,BMW R1200R,BMW R1200RT,BMW R1200S,BMW K1200LT,BMW K1300GT,BMW K1300R,BMW K1300S,BMW K1600GT and K1600GTL,BMW S1000RR,BMW E36/5,BMW E36/7,BMW E36/8,BMW E38,BMW E38/2,BMW E38/3,BMW E39,BMW E46/5,BMW E46/4,BMW E46/3,BMW E46/2,BMW E46/C,BMW E52,BMW E53,BMW E60,BMW E61,BMW E62,BMW E63,BMW E64,BMW E65,BMW E66,BMW E67,BMW E68,BMW E70,BMW E71,BMW E72,BMW E81,BMW E82,BMW E83,BMW E84,BMW E85,BMW E86,BMW E87,BMW E88,BMW E89,BMW E90,BMW E91,BMW E92,BMW E93,BMW F01,BMW F02,BMW F03,BMW F04,BMW F06,BMW F07,BMW F10,BMW F11,BMW F12,BMW F13,BMW F15,BMW F18,BMW F20,BMW F21,BMW F22,BMW F25,BMW F26,BMW F30,BMW F31,BMW F32,BMW F33,BMW F34,BMW F35,BMW F36,BMW F80,BMW F82