Mercedes Benz Actros MR Error Codes PLD Engine Management System

1.List of DTCs (MR) PLD

DTC Diagnostics

2.functional control via measured parameters (MR) PLD

functional control via binary codes

3. troubleshooting the control system (MR) PLD

4. Checking the fuel system for leaks

fuel system troubleshooting

MERCEDES-BENZ ACTROS PLD engine control unit pin assignment and wiring diagram

List of fault codes for the system control unit

DIAGNOSTIC CODES

0100

CAN-High communication on FR system is damaged

0101

CAN-Low communication to FR system is damaged

0102

Data from FR control unit contains an error

0104

CAN communication to FR system is damaged

0149

CAN parameterization error

0308

Crankshaft Position Sensor: Short to Ground

0309

Crankshaft Position Sensor: Open

0310

Crankshaft Position Sensor: Signal Too Low

0311

Crankshaft position sensor: synchronization of signals from the crankshaft and camshaft contains an error

0312

Crankshaft Position Sensor: No Signal

0313

Crankshaft Position Sensor: Polarity reversed

0408

Camshaft Position Sensor: Short to Ground

0409

Camshaft Position Sensor: Open

0412

Camshaft Position Sensor: No Signal

0413

Camshaft Position Sensor: Polarity reversed

0530

Overspeed

1015

oil temperature sensor: measurement range exceeded (short by plus, open)

1016

oil temperature sensor: measuring range not reached (short to ground)

1115

fuel temperature sensor: measurement range exceeded (short by plus, open)

1116

fuel temperature sensor: measuring range not reached (short to ground)

1215

boost air temperature sensor: measurement range exceeded (short by plus, open)

1216

boost air temperature sensor: measuring range not reached (short to ground)

1315

Atmospheric pressure sensor: measurement range exceeded (short for plus, open)

1316

Atmospheric pressure sensor: measuring range not reached (short to ground)

1415

Charge air pressure sensor: measurement range exceeded (short by plus, break)

1416

Charge air pressure sensor: measuring range not reached (short to ground)

1417

Charge air pressure sensor: measured value contains an error

1515

coolant temperature sensor: measurement range exceeded (short by plus, open)

1516

coolant temperature sensor: measuring range not reached (short to ground)

1615

Oil pressure sensor: measurement range exceeded (short by plus, open)

1616

Oil pressure sensor: measuring range not reached (short to ground)

1617

Oil pressure sensor: measured parameter not reliable

1818

Defective boost circuit

1820

Boost air pressure too high

1822

Boost air temperature exceeded

1873

Turbocharger rotation speed has timing fault

1875

Charge air pressure deviation too large

1876

Boost pressure for braking not reached

2020

Oil pressure too low

2026

Engine oil level too high or too low

2122

Coolant temperature too high

2219

Terminal 15 of the MR or FR control unit is open

2319

Terminal 50 of the MR or FR control unit is open

2415

The fuel pressure difference sensor has an open

2416

The fuel pressure difference sensor is short by plus, short by ground

2509

Oil level sensor: open

2515

Oil level sensor: short by plus, measuring range exceeded

2516

Oil level sensor: shorts to ground, measuring range not reached

2517

Oil level sensor: measured parameter invalid

2612

The turbine speed sensor has an open, short by plus, short by ground

2712

The turbine speed sensor has an open, short by plus, short by ground (turbine 2)

3015

Fuel pressure sensor: measuring range exceeded (short for plus, open)

3016

Fuel pressure sensor: measuring range not reached (short to ground)

4024-4048

defect in operation in the control unit

4049 Invalid parameterization for proportional valve

4050-4056 defect in operation in the control unit

4058 The data set in the MR control unit was subject to change

4805 One of the plunger pumps of the first row is short by plus

4806 Feedback of the plunger pump of the first row is short to ground

4905 One of the plunger pumps of the second row is short by plus

4906 Feedback plunger pump of the second row shorts to ground

5026 Pump plunger cylinder 1: valve has no feed

5027 Pump plunger cylinder 1: excitation failure

5028 Pump plunger cylinder 1: short

5126 Pump plunger cylinder 2: valve has no feed

5127 Cylinder 2 Plunger Pump: Excitation Damage

5128 Pump plunger cylinder 2: short

5226 Pump plunger cylinder 3: valve has no feed

5227 Pump plunger cylinder 3: excitation damage

5228 Pump plunger cylinder 3: short

5326 Pump plunger cylinder 4: valve has no feed

5327 Pump plunger cylinder 4: excitation damage

5328 Pump plunger cylinder 4: short

5426 Pump plunger cylinder 5: valve has no feed

5427 Pump plunger cylinder 5: excitation damage

5428 Pump plunger cylinder 5: short

5526 Pump plunger cylinder 6: valve has no feed

5527 Pump plunger cylinder 6: excitation damage

5528 Pump plunger cylinder 6: short circuit

5626 Pump plunger cylinder 7: valve has no feed

5627 Pump plunger cylinder 7: excitation damage

5628 Pump plunger cylinder 7: short circuit

5726 Pump plunger cylinder 8: valve has no feed

5727 Pump plunger cylinder 8: excitation damage

5728 Pump plunger cylinder 8: short

6409 Heating flange is open

6506 Diagnostic cable separator shortens to ground

6564 Diagnostic cable separator has an open, short by plus

7006 Solenoid valve 1: turbocharger adjustment (short to ground)

7007 Proportional valve 1 short by plus

7009 Solenoid valve 1: turbocharger adjustment (open)

7106 Solenoid valve 3: fan stage 1 shortens to ground

7107 Proportional valve 3 short by plus

7109 Solenoid valve 3: fan stage 1 has an open

7112 Solenoid valve 3: high-power fan drive, no fan speed

7206 Solenoid valve 4: fan stage 2 shorts to ground

7207 Proportional valve 4 short by plus

7209 Solenoid valve 4: fan stage 2 is open

7305 Solenoid valve 2: brake with decompression valve shortens by plus

7306 Solenoid valve 2: brake with decompression valve shortens to ground

7307 Proportional valve 2 short by plus

7309 Proportional valve 2 has an open

7317 Solenoid valve 2: brake with decompression valve is open or short to ground

7405 Proportional valve 5 short by plus

7408 Proportional valve 5 short to ground

7542 Battery voltage is too high

7543 Battery voltage is too low

7609 Proportional valve 6 has an open

7705 The proportional valve of the first row is short by plus

7708 The proportional valve of the first row is short to ground

7805 The proportional valve of the second row shortens by plus

7808 The proportional valve of the second row is short to ground

8005 Starter relay terminal 50 (short by plus)

8008 Starter Relay Terminal 50 (Short to Ground)

8009 Starter Relay Terminal 50 (Open)

8033 Starter relay is damaged, mechanically freezes

8039 Starter excitation (end stage) is damaged

8086 Starter is not engaged

9044 Pump plunger cylinder 1: idle speed adjustment limited

9045 Plunger cylinder pump 1: single cylinder alignment is limited

9144 Cylinder 2 Plunger Pump: Idle Restriction Adjustment Limited

9145 Pump plunger cylinder 2: the alignment of a single cylinder is limited

9244 Cylinder 3 plunger pump: idle idle adjustment limited

9245 Pump plunger cylinder 3: the alignment of a single cylinder is limited

9344 Cylinder 4 plunger pump: idle idle adjustment limited

9345 Pump plunger cylinder 4: the alignment of a single cylinder is limited

9444 Cylinder 5 Plunger Pump: Restricted Idle Restriction Limited

9445 Pump plunger cylinder 5: the alignment of a single cylinder is limited

9544 Cylinder 6 plunger pump: idle idle adjustment limited

9545 Pump plunger cylinder 6: the alignment of a single cylinder is limited

9644 Plunger cylinder pump 7: idle idle adjustment limited

9645 Pump plunger cylinder 7: the alignment of a single cylinder is limited

9744

Plunger Cylinder Pump 8: Idle Calm Adjustment Limited

9745

Plunger cylinder pump 8: unit cylinder alignment is limited

9846

Sudden stop alignment of a single cylinder

9960

Too many keys

9961

The safety function to prevent unauthorized starting of the engine is activated, the MR control unit is locked

9962

MR lock activated

9963

Lack of transponder code transmission on the engine CAN bus

9964

No transponder code transmitted via terminal 50

9965

Wrong transponder key

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