Opel Omega Error Codes

The table shows the error codes for the Mercedes engine. To find a word or phrase on the page, press Ctrl + F in the window that appears, enter the error code or part of the phrase and click the "Find" button, as a result, the decoding of the specific Mercedes error code you are interested in will appear.

12 Entering Diagnostic Mode Everything is OK

13 Slow change of signal from LZ Goes to the stitched average value of 0.45V

14 Coolant temperature sensor - undervoltage.

Occurs if the engine temperature for the sensor is more than 140 ° C. It switches to the setpoint value corresponding to 80 ° C if the sensor has a temp. suction. air produces a value greater than 0.4 ° C. If the temperature is lower, then for 3 minutes it works according to the program for a cold engine, and then it goes to the value for 80 ° C

15 Coolant temperature sensor - overvoltage.

Occurs if the engine temperature for the sensor is less than -35.4 ° C and the temperature is Sun air less than -20 ° C. It switches to the setpoint value corresponding to 80 ° C if the sensor has a temp. suction. air produces a value greater than 0.4 ° C. If the temperature is lower, then for 3 minutes it works according to the program for a cold engine, and then it goes to the value for 80 ° C

44 oxygen sensor. Low voltage

It arises if the signal level with LZ during engine operation is less than 0.09 V for more than 3 minutes. It is not fixed if:

1. engine temperature> 70 degrees

2. The low level lasts more than three minutes

3. signal read time more than 4.5 ms

4. All 3 agreed conditions are fulfilled together for more than 5 seconds. and there are no errors with the air flow sensor. Switches to open loop mode. In this case, the average signal value with LZ of 0.45V is taken.

45 oxygen sensor. High voltage.

It arises if the signal level with LZ during engine operation is higher than 1.099 V for more than 3 min. It is fixed in all cases other than the conditions for code 44 (above). Switches to open loop mode. In this case, the average signal value with LZ of 0.45V is taken.

48 Undervoltage on the controller.

It occurs if the voltage in the on-board network when the engine is running is less than 10 V after 3 minutes. after the start. Attempts to compensate for voltage deviation.

49 Increased voltage on the controller.

It occurs if the voltage in the on-board network during engine operation is greater than 16 V. Attempts to compensate for the voltage deviation.

51 The controller is out of order The programmed parameter values are not coming from the controller memory. Actually there is no reaction.

55 The controller is out of order. It is necessary to replace the controller or memory. Actually, there is no reaction. Controller malfunctioning

65 Air Flow Meter Potentiometer - Undervoltage Transfers to a preset value corresponding to 2.5V

66 Air Flow Meter Potentiometer - Overvoltage Goes to a stitched value corresponding to 2.5V

67 The contact XX of the throttle switch does not open -

69 Intake Air Temperature Sensor - Overvoltage.

It occurs when the sensor shows a temperature of more than 140 ° C. It switches to the set value corresponding to 19.9 ° C

71 Intake Air Temperature Sensor - Undervoltage.

Occurs when the sensor shows a temperature of less than -35 ° C and the engine runs for more than 3 minutes. It switches to the set value corresponding to 19.9 ° C

72 Kick-down contact of the throttle switch does not open -

73 Air mass meter - undervoltage Transfers to the stitched value of the duration of injection pulses of 4.8 ms and the ignition timing of + 20 °

74 Air mass meter - increased voltage Goes to the stitched value of the injection pulse duration of 4.8 ms and the ignition timing of + 20 °

75 Traction control. Low voltage

Saved if:

the car moves, the voltage from the traction control sensor is constantly low and all this lasts more than 3 minutes -

DTC: Cause: Controller Response:

12 Entering Diagnostic Mode Everything is OK

13 Slow change of signal from LZ Goes to the stitched average value of 0.45V

14 Coolant temperature sensor - undervoltage.

Occurs if the engine temperature for the sensor is more than 140 ° C. It switches to the setpoint value corresponding to 80 ° C if the sensor has a temp. suction. air produces a value greater than 0.4 ° C. If the temperature is lower, then for 3 minutes it works according to the program for a cold engine, and then it goes to the value for 80 ° C

15 Coolant temperature sensor - overvoltage.

Occurs if the engine temperature for the sensor is less than -35.4 ° C and the temperature is Sun air less than -20 ° C. It switches to the set value corresponding to 80 ° C if the intake air temperature is higher than 0.4 ° C. If the temperature is lower, then for 3 minutes it works according to the program for a cold engine, and then it goes to the value for 80 ° C

19 Wrong signal from the engine speed and crankshaft position sensor "Stop machine".

21 Throttle Position Sensor - Overvoltage Information is replaced by a calculated value based on a signal from the air flow meter and information about the speed of the crankshaft

22 Throttle Position Sensor - Undervoltage Information is replaced by a calculated value based on a signal from the air flow meter and information about the speed of the crankshaft

31 Crankshaft speed sensor - no information. The signal is always remembered when the ignition is turned on. After starting the engine, it is immediately erased from the memory and is not stored in it if the system is operational.

38 oxygen sensor. Low voltage

It arises if the signal level with LZ during engine operation is less than 0.09 V for more than 3 minutes. It is not fixed if:

1. engine temperature> 70 degrees

2. The low level lasts more than three minutes

3. signal read time more than 4.5 ms

4. All 3 agreed conditions are fulfilled together for more than 5 seconds. and there are no errors with the air flow sensor. Switches to open loop mode. In this case, the average signal value with LZ of 0.45V is taken.

39 oxygen sensor. High voltage.

12 Entering Diagnostic Mode Everything is OK

13 Slow change of signal from LZ Goes to the stitched average value of 0.45V

14 Coolant temperature sensor - undervoltage.

Occurs if the engine temperature for the sensor is more than 140 ° C. It switches to the setpoint value corresponding to 80 ° C if the sensor has a temp. suction. air produces a value greater than 0.4 ° C. If the temperature is lower, then for 3 minutes it works according to the program for a cold engine, and then it goes to the value for 80 ° C

15 Coolant temperature sensor - overvoltage.

Occurs if the engine temperature for the sensor is less than -35.4 ° C and the temperature is Sun air less than -20 ° C. It switches to the set value corresponding to 80 ° C if the intake air temperature is higher than 0.4 ° C. If the temperature is lower, then for 3 minutes it works according to the program for a cold engine, and then it goes to the value for 80 ° C

19 Wrong signal from the engine speed and crankshaft position sensor "Stop machine".

21 Throttle Position Sensor - Overvoltage Information is replaced by a calculated value based on a signal from the air flow meter and information about the speed of the crankshaft

22 Throttle Position Sensor - Undervoltage Information is replaced by a calculated value based on a signal from the air flow meter and information about the speed of the crankshaft

31 Crankshaft speed sensor - no information. The signal is always remembered when the ignition is turned on. After starting the engine, it is immediately erased from the memory and is not stored in it if the system is operational.

38 oxygen sensor. Low voltage

It arises if the signal level with LZ during engine operation is less than 0.09 V for more than 3 minutes. It is not fixed if:

1. engine temperature> 70 degrees

2. The low level lasts more than three minutes

3. signal read time more than 4.5 ms

4. All 3 agreed conditions are fulfilled together for more than 5 seconds. and there are no errors with the air flow sensor. Switches to open loop mode. In this case, the average signal value with LZ of 0.45V is taken.

39 oxygen sensor. High voltage.

It arises if the signal level with LZ during engine operation is less than 0.09 V for more than 3 minutes. It is not fixed if:

1. engine temperature> 70 degrees

2. The low level lasts more than three minutes

3. signal read time more than 4.5 ms

4. All 3 agreed conditions are fulfilled together for more than 5 seconds. and there are no errors with the air flow sensor. Switches to open loop mode. In this case, the average signal value with LZ of 0.45V is taken.

45 oxygen sensor. High voltage.

It arises if the signal level with LZ during engine operation is higher than 1.099 V for more than 3 min. It is fixed in all cases other than the conditions for code 44 (above). Switches to open loop mode. In this case, the average signal value with LZ of 0.45V is taken.

48 Undervoltage on the controller.

It occurs if the voltage in the on-board network when the engine is running is less than 10 V after 3 minutes. after the start. Trying to compensate for voltage deviation.

49 Increased voltage on the controller.

It occurs if the voltage in the on-board network during engine operation is greater than 16 V. Attempts to compensate for the voltage deviation

52 The output stage of the controller that controls the diagnostic lamp - short to ground -

53 Fuel pump relay. Low voltage - open or short to ground in the relay power circuit -

54 The output stage of the controller that controls the fuel pump - short to "+12" -

55 The controller is out of order The programmed parameter values are not coming from the controller memory.

56 The output stage of the controller that controls the controller XX - circuit to "+12" -

57 The output stage of the controller that controls the regulator XX - short to ground -

69 Intake Air Temperature Sensor - Overvoltage. It occurs when the sensor shows a temperature of more than 140 ° C. It switches to the set value corresponding to 19.9 ° C

71 Intake Air Temperature Sensor - Undervoltage.

Occurs when the sensor shows a temperature of less than -35 ° C and the engine runs for more than 3 minutes. It switches to the set value corresponding to 19.9 ° C

73 Air mass meter - undervoltage Goes over:

- in mode XX on the table of values of the duration of the injection pulses in accordance with the number of revolutions,

- in the mode of partial loads on a fixed value of the pulse duration of 4.8 ms. and ignition timing + 15o

- in the "Kick-down" mode for a fixed value of the pulse duration of 8 ms.

74 Air mass meter - overvoltage Goes over:

- in mode XX on the table of values of the duration of the injection pulses in accordance with the number of revolutions,

- in the mode of partial loads on a fixed value of the pulse duration of 4.8 ms. and ignition timing + 15o

- in the "Kick-down" mode for a fixed value of the pulse duration of 8 ms.

75 Traction control. Low voltage

Saved if:

the car moves, the voltage from the traction control sensor is constantly low and all this lasts more than 3 minutes -

DTC: Cause: Controller Response:

12 Entering Diagnostic Mode Everything is OK

13 Slow change of signal from LZ Goes to the stitched average value of 0.45V

14 Coolant temperature sensor - undervoltage. It switches to the stitched value corresponding to 40 ° C.

15 Coolant temperature sensor - overvoltage. It switches to the stitched value corresponding to 40 ° C.

16 Knock sensor - defective or defective circuit Changes the ignition timing to 12 °

17 Knock sensor - defective or defective circuit Changes the ignition timing to 12 °

18 Knock Sensor Module - No Signal Changes the ignition timing to 12 °

19 Incorrect signal from the speed sensor and crankshaft position.

23 Knock Sensor Module - No Signal

Occurs if the engine temperature is working (> 85 g), the engine runs at speeds above 3500, but there is no signal from the module. Changes the ignition timing to 12 °

25 Nozzle of 1st cylinder - overvoltage Stop nozzle control

26 Nozzle of the 2nd cylinder - overvoltage Stop nozzle control

27 Nozzle of the 3rd cylinder - increased voltage Stop nozzle control

28 4th cylinder injector - high voltage Stop nozzle control

31 Crankshaft speed sensor - no information. The signal is always remembered when the ignition is turned on. After starting the engine, it is immediately erased from the memory and is not stored in it if the system is operational.

37 Controller output stage - Stop Machine fault

48 Undervoltage on the controller.

It occurs if the voltage in the on-board network when the engine is running is less than 10 V after 3 minutes. after the start. Attempts to compensate for voltage deviation. In addition, control commands are generated based on the last valid values. The reaction to new ones does not occur.

49 Increased voltage on the controller.

It occurs if the voltage in the on-board network during engine operation is greater than 16 V. Attempts to compensate for the voltage deviation. In addition, control commands are generated based on the last valid values. The reaction to new ones does not occur.

51 Controller failed -

52 The output stage of the controller that controls the diagnostic lamp - short to ground -

53 The output stage of the controller that controls the fuel pump - short to ground -

54 The output stage of the controller that controls the fuel pump - short to "+12" -

55 Controller failed -

56 The output stage of the controller that controls the regulator XX - short to ground -

57 Open circuit in the output signal of the control of the regulator XX -

61 End stage of the fuel tank ventilation circuit - undervoltage (short to ground) -

62 The final stage of the fuel tank ventilation circuit is undervoltage (short to ground) The signal is issued in the case of a short circuit when voltage is supplied from the battery

65 Air Flow Meter Potentiometer - Undervoltage Transfers to a preset value corresponding to 2.5V

66 Air Flow Meter Potentiometer - Overvoltage Goes to a stitched value corresponding to 2.5V

67 The contact XX of the throttle switch does not open The controller switches to operation at the last stored values

72 The kick-down contact of the throttle switch does not open. If the load signal is less than 4.5V, the controller virtually opens the circuit. If more than 4.5V, it leaves everything as it is.

73 Air mass meter - undervoltage When contacts XX are closed, the duration of nozzle opening is calculated separately. With open contacts, the XX switches to the stitched value of the injection pulse duration of 4.8 ms and the ignition timing of + 20 °

74 Air mass meter - increased voltage With XX contacts closed, the duration of nozzle opening is calculated separately. With open contacts, the XX switches to the stitched value of the injection pulse duration of 4.8 ms and the ignition timing of + 20 °

81 Nozzle of the 1st cylinder - insufficient voltage Stop nozzle control

82 Cylinder 2 injector - insufficient voltage Stop nozzle control

83 Nozzle of the 3rd cylinder - insufficient voltage Stop nozzle control

84 Injector of 4th cylinder - insufficient voltage Stop nozzle control

87 A / C compressor off relay - undervoltage -

88 A / C compressor off relay - overvoltage -

93 Hall sensor (sparking moment) - undervoltage -

94 Hall sensor (moment of sparking) - increased voltage -