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BMW Fault Code - 122

Check 122 Fault Code

BMW Fault Code: 122

122 - CAN acknowledgement,safety circuit of DMEL control unit

System: Electronic Engine Power Control

BMW System: EML

Type: Drive

Engine Oil Temperature

Fault Code Table : MS41

The next generation Siemens MS ECUs introduced many of the OBD2 features. This includes Catalytic Converter monitoring and Long / Short term Fueling and Ignition Adaptation. The MS41 was used on the M52 series of engines, MS42 on the M52TU series, and MS43 on the M43 4 Cylinders.

The OBD2 P codes fault protocol was not activated in European markets on this group, as currently it was not required by law.

Engine Oil Temperature

Fault Code Table : MS42

The next generation Siemens MS ECUs introduced many of the OBD2 features. This includes Catalytic Converter monitoring and Long / Short term Fueling and Ignition Adaptation. The MS41 was used on the M52 series of engines, MS42 on the M52TU series, and MS43 on the M43 4 Cylinders.

The OBD2 P codes fault protocol was not activated in European markets on this group, as currently it was not required by law.

Engine Oil Temperature

Fault Code Table : MS43

The next generation Siemens MS ECUs introduced many of the OBD2 features. This includes Catalytic Converter monitoring and Long / Short term Fueling and Ignition Adaptation. The MS41 was used on the M52 series of engines, MS42 on the M52TU series, and MS43 on the M43 4 Cylinders.

The OBD2 P codes fault protocol was not activated in European markets on this group, as currently it was not required by law.

DME Internal Processor Check

Fault Code Table : DME MSS52

The MSS52 is an M Power ECU designed to run the E39 M5, the Z8 Roadster, and also the Wiesmann Roadsters. The MSS54 is used on the E46 M3 and on some Z3Ms. The system uses an Electronic Throttle to accurately control Air intake instead of the more common Cable throttles used on earlier vehicles

DME Internal Processor Check

Fault Code Table : DME MSS54

The MSS52 is an M Power ECU designed to run the E39 M5, the Z8 Roadster, and also the Wiesmann Roadsters. The MSS54 is used on the E46 M3 and on some Z3Ms. The system uses an Electronic Throttle to accurately control Air intake instead of the more common Cable throttles used on earlier vehicles

Coolant Temperature Sensor

Fault Code Table : BMS46

The Bosch BMS46 is a Hybrid ECU, created from a joint effort with Siemens, and is used in later M43 engines used in the Z3 and E46 series.

Coolant Temperature Sensor

Fault Code Table : BMS43

The Bosch BMS46 is a Hybrid ECU, created from a joint effort with Siemens, and is used in later M43 engines used in the Z3 and E46 series.

Ambient Temperature Signal

Fault Code Table : DME 7.2

The Bosch DME 7.2, also known as ME7.2, can be found on a number of V8 Petrol engines, used in the 5 and 7 Series amongst others. It uses Torque modeling to control the engine torque output depending on Throttle Pedal Position.

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