Tips & Tricks Mercedes Benz Fault Codes

 

Circuit Malfunction
  • P0466 Purge Flow Sensor Circuit Range/Performance
  • P0467 Purge Flow Sensor Circuit Low Input
  • P0468 Purge Flow Sensor Circuit High Input
  • P0469 Purge Flow Sensor Circuit Intermittent
  • P0470 Exhaust Pressure Sensor Malfunction
  • P0471 Exhaust Pressure Sensor Range/Performance
  • P0472 Exhaust Pressure Sensor Low
  • P0473 Exhaust Pressure Sensor High
  • P0474 Exhaust Pressure Sensor Intermittent
  • P0475 Exhaust Pressure Control Valve Malfunction
  • P0476 Exhaust Pressure Control Valve Range/Performance
  • P0477 Exhaust Pressure Control Valve Low
  • P0478 Exhaust Pressure Control Valve High
  • P0479 Exhaust Pressure Control Valve Intermittent
  • P0480 Cooling Fan 1 Control Circuit Malfunction
  • P0481 Cooling Fan 2 Control Circuit Malfunction
  • P0482 Cooling Fan 3 Control Circuit Malfunction
  • P0483 Cooling Fan Rationality Check Malfunction
  • P0484 Cooling Fan Circuit Over Current
  • P0485 Cooling Fan Power/Ground Circuit Malfunction
  • P0500 Vehicle Speed Sensor Malfunction
  • P0501 Vehicle Speed Sensor Range/Performance
  • P0502 Vehicle Speed Sensor Low Input
  • P0503 Vehicle Speed Sensor Intermittent/Erratic/High
  • P0505 Idle Control System Malfunction
  • P0506 Idle Control System RPM Lower Than Expected
  • P0507 Idle Control System RPM Higher Than Expected
  • P0510 Closed Throttle Position Switch Malfunction
  • P0520 Engine Oil Pressure Sensor/Switch Circuit Malfunction
  • P0521 Engine Oil Pressure Sensor/Switch Circuit Range/Performance
  • P0522 Engine Oil Pressure Sensor/Switch Circuit Low Voltage
  • P0523 Engine Oil Pressure Sensor/Switch Circuit High Voltage
  • P0530 A/C Refrigerant Pressure Sensor Circuit Malfunction
  • P0531 A/C Refrigerant Pressure Sensor Circuit Range/Performance
  • P0532 A/C Refrigerant Pressure Sensor Circuit Low Input
  • P0533 A/C Refrigerant Pressure Sensor Circuit High Input
  • P0534 Air Conditioner Refrigerant Charge Loss
  • P0550 Power Steering Pressure Sensor Circuit Malfunction
  • P0551 Power Steering Pressure Sensor Circuit Range/Performance
  • P0552 Power Steering Pressure Sensor Circuit Low Input
  • P0553 Power Steering Pressure Sensor Circuit High Input
  • P0554 Power Steering Pressure Sensor Circuit Intermittent
  • P0560 System Voltage Malfunction
  • P0561 System Voltage Unstable
  • P0562 System Voltage Low
  • P0563 System Voltage High
  • P0565 Cruise Control On Signal Malfunction
  • P0566 Cruise Control Off Signal Malfunction
  • P0567 Cruise Control Resume Signal Malfunction
  • P0568 Cruise Control Set Signal Malfunction
  • P0569 Cruise Control Coast Signal Malfunction
  • P0570 Cruise Control Accel Signal Malfunction
  • P0571 Cruise Control/Brake Switch A Circuit Malfunction
  • P0572 Cruise Control/Brake Switch A Circuit Low
  • P0573 Cruise Control/Brake Switch A Circuit High
  • P0574 Cruise Control Related Malfunction
  • P0575 Cruise Control Related Malfunction
  • P0576 Cruise Control Related Malfunction
  • P0576 Cruise Control Related Malfunction
  • P0578 Cruise Control Related Malfunction
  • P0579 Cruise Control Related Malfunction
  • P0580 Cruise Control Related Malfunction
  • P0600 Serial Communication Link Malfunction
  • P0601 Internal Control Module Memory Check Sum Error
  • P0602 Control Module Programming Error
  • P0603 Internal Control Module Keep Alive Memory (KAM) Error
  • P0604 Internal Control Module Random Access Memory (RAM) Error
  • P0605 Internal Control Module Read Only Memory (ROM) Error
  • P0606 PCM Processor Fault
  • P0608 Control Module VSS Output "A" Malfunction
  • P0609 Control Module VSS Output "B" Malfunction
  • P0620 Generator Control Circuit Malfunction
  • P0621 Generator Lamp "L" Control Circuit Malfunction
  • P0622 Generator Field "F" Control Circuit Malfunction
  • P0650 Malfunction Indicator Lamp (MIL) Control Circuit Malfunction
  • P0654 Engine RPM Output Circuit Malfunction
  • P0655 Engine Hot Lamp Output Control Circuit Malfucntion
  • P0656 Fuel Level Output Circuit Malfunction
  • P0700 Transmission Control System Malfunction
  • P0701 Transmission Control System Range/Performance
  • P0702 Transmission Control System Electrical
  • P0703 Torque Converter/Brake Switch B Circuit Malfunction
  • P0704 Clutch Switch Input Circuit Malfunction
  • P0705 Transmission Range Sensor Circuit malfunction (PRNDL Input)
  • P0706 Transmission Range Sensor Circuit Range/Performance
  • P0707 Transmission Range Sensor Circuit Low Input
  • P0708 Transmission Range Sensor Circuit High Input
  • P0709 Transmission Range Sensor Circuit Intermittent
  • P0710 Transmission Fluid Temperature Sensor Circuit Malfunction
  • P0711 Transmission Fluid Temperature Sensor Circuit Range/Performance
  • P0712 Transmission Fluid Temperature Sensor Circuit Low Input
  • P0713 Transmission Fluid Temperature Sensor Circuit High Input
  • P0714 Transmission Fluid Temperature Sensor Circuit Intermittent
  • P0715 Input/Turbine Speed Sensor Circuit Malfunction
  • P0716 Input/Turbine Speed Sensor Circuit Range/Performance
  • P0717 Input/Turbine Speed Sensor Circuit No Signal
  • P0718 Input/Turbine Speed Sensor Circuit Intermittent
  • P0719 Torque Converter/Brake Switch B Circuit Low
  • P0720 Output Speed Sensor Circuit Malfunction
  • P0721 Output Speed Sensor Range/Performance
  • P0722 Output Speed Sensor No Signal
  • P0723 Output Speed Sensor Intermittent
  • P0724 Torque Converter/Brake Switch B Circuit High
  • P0725 Engine Speed input Circuit Malfunction
  • P0726 Engine Speed Input Circuit Range/Performance
  • P0727 Engine Speed Input Circuit No Signal
  • P0728 Engine Speed Input Circuit Intermittent
  • P0730 Incorrect Gear Ratio
  • P0731 Gear 1 Incorrect ratio
  • P0732 Gear 2 Incorrect ratio
  • P0733 Gear 3 Incorrect ratio
  • P0734 Gear 4 Incorrect ratio
  • P0735 Gear 5 Incorrect ratio
  • P0736 Reverse incorrect gear ratio
  • P0740 Torque Converter Clutch Circuit Malfuction
  • P0741 Torque Converter Clutch Circuit Performance or Stuck Off
  • P0742 Torque Converter Clutch Circuit Stuck On
  • P0743 Torque Converter Clutch Circuit Electrical
  • P0744 Torque Converter Clutch Circuit Intermittent
  • P0745 Pressure Control Solenoid Malfunction
  • P0746 Pressure Control Solenoid Performance or Stuck Off
  • P0747 Pressure Control Solenoid Stuck On
  • P0748 Pressure Control Solenoid Electrical
  • P0749 Pressure Control Solenoid Intermittent
  • P0750 Shift Solenoid A Malfunction
  • P0751 Shift Solenoid A Performance or Stuck Off
  • P0752 Shift Solenoid A Stuck On
  • P0753 Shift Solenoid A Electrical
  • P0754 Shift Solenoid A Intermittent
  • P0755 Shift Solenoid B Malfunction
  • P0756 Shift Solenoid B Performance or Stuck Off
  • P0757 Shift Solenoid B Stuck On
  • P0758 Shift Solenoid B Electrical
  • P0759 Shift Solenoid B Intermittent
  • P0760 Shift Solenoid C Malfunction
  • P0761 Shift Solenoid C Performance or Stuck Off
  • P0762 Shift Solenoid C Stuck On
  • P0763 Shift Solenoid C Electrical
  • P0764 Shift Solenoid C Intermittent
  • P0765 Shift Solenoid D Malfunction
  • P0766 Shift Solenoid D Performance or Stuck Off
  • P0767 Shift Solenoid D Stuck On
  • P0768 Shift Solenoid D Electrical
  • P0769 Shift Solenoid D Intermittent
  • P0770 Shift Solenoid E Malfunction
  • P0771 Shift Solenoid E Performance or Stuck Off
  • P0772 Shift Solenoid E Stuck On
  • P0773 Shift Solenoid E Electrical
  • P0774 Shift Solenoid E Intermittent
  • P0780 Shift Malfunction
  • P0781 1-2 Shift Malfunction
  • P0782 2-3 Shift Malfunction
  • P0783 3-4 Shift Malfunction
  • P0784 4-5 Shift Malfunction
  • P0785 Shift/Timing Solenoid Malfunction
  • P0786 Shift/Timing Solenoid Range/Performance
  • P0787 Shift/Timing Solenoid Low
  • P0788 Shift/Timing Solenoid High
  • P0789 Shift/Timing Solenoid Intermittent
  • P0790 Normal/Performance Switch Circuit Malfunction
  • P0801 Reverse Inhibit Control Circuit Malfunction
  • P0803 1-4 Upshift (Skip Shift) Solenoid Control Circuit Malfunction
  • P0804 1-4 Upshift (Skip Shift) Lamp Control Circuit Malfunction
  • P0805 Clutch Position Sensor Circuit Malfunction
  • P0806 Clutch Position Sensor Circuit Range/Performance
  • P0807 Clutch Position Sensor Circuit Low
  • P0808 Clutch Position Sensor Circuit High
  • P0809 Clutch Position Sensor Circuit Intermittent Ckt
  • P0810 Clutch Position Control Malfunction
  • P0811 Clutch Slippage Excessive
  • P0812 Reverse Input Circuit Malfunction
  • P0813 Reverse Output Circuit Malfunction
  • P0814 Trans Range Display Circuit Malfunction
  • P0815 Upshift Switch Circuit Malfunction
  • P0816 Downshift Switch Circuit Malfunction
  • P0817 Starter Disable Circuit
  • P0818 Driveline Disconn. Switch Input
  • P0820 Gear Lever X-Y Sensor Circuit
  • P0821 Gear Lever X Sensor Circuit
  • P0822 Gear Lever Y Sensor Circuit
  • P0823 Gear Lever X Sensor Circuit Intermittent Ckt
  • P0824 Gear Lever Y Sensor Circuit Intermittent Ckt
  • P0830 Clutch Position Switch A Circuit Malfunction
  • P0831 Clutch Position Switch A Circuit Low
  • P0832 Clutch Position Switch A Circuit High
  • P0833 Clutch Position Switch B Circuit Malfunction
  • P0834 Clutch Position Switch B Circuit Low
  • P0835 Clutch Position Switch B Circuit High
  • P0836 4 Wheel Drive Switch Circuit Malfunction
  • P0837 4 Wheel Drive Switch CKT Range/Perf
  • P0838 4 Wheel Drive Switch Circuit Low
  • P0839 4 Wheel Drive Switch Circuit High
  • P0840 Trans Fluid Press Sensor/Switch A Circuit Malfunction
  • P0841 Trans Fluid Press Sensor/Switch A CKT Range/Perf
  • P0842 Trans Fluid Press Sensor/Switch A Circuit Low
  • P0843 Trans Fluid Press Sensor/Switch A Circuit High
  • P0844 Trans Fluid Press Sensor/Switch A CKT Intermittent
  • P0845 Trans Fluid Press Sensor/Switch B Circuit Malfunction
  • P0846 Trans Fluid Press Sensor/Switch B CKT Range/Perf
  • P0847 Trans Fluid Press Sensor/Switch B Circuit Low
  • P0848 Trans Fluid Press Sensor/Switch B Circuit High
  • P0849 Trans Fluid Press Sensor/Switch B CKT Intermittent
  • P1000 Electronic Gear Selector Module: Defective N15/5
  • P1228 yet unknown code on 1997 C 220 CDI
  • P1386 knock control
  • P1570 Intermittant No-Start Immobiliser Module
  • P1581
  • P1747 Electronic Gear Selector Module: Defective Interaction of CAN with control unit A1(instrument cluster)
  • P1750 Electronic Gear Selector Module: Very low control unit supply voltage P1832 Electronic Gear Selector Module: SHORT in circuit N15/5 output stage
  • P1910 Electronic Gear Selector Module: Control Unit over voltage
  • P1912 Electronic Gear Selector Module: Weak touch push button voltage
  • P2000 NOx Trap Efficiency Below Threshold (Bank 1)
  • P2001 NOx Trap Efficiency Below Threshold (Bank 2)
  • P2003 Particulate Trap Efficiency Below Threshold (Bank 1)
  • P2004 Particulate Trap Efficiency Below Threshold (Bank 2)
  • P2031 Exhaust Gas Temperature Sensor Circuit (Bank 1 Sensor 2)
  • P2032 Exhaust Gas Temperature Sensor Circuit Low (Bank 1 Sensor 2)
  • P2033 Exhaust Gas Temperature Sensor Circuit High (Bank 1 Sensor 2)
  • P2080 Exhaust Gas Temperature Sensor Circuit Range/Performance (Bank 1 Sensor 1)
  • P2081 Exhaust Gas Temperature Sensor Circuit intermittant (Bank 1 Sensor 1)
  • P2100 Throttle Actuator Control Motor Circuit/Open
  • P2101 Throttle Actuator Control Motor Circuit Range/Performance
  • P2208 transmission: The speed of Y3/6n2 to Y3/6n3 is excessive
Body
  • B1000 HRA Headlamp range adjustment: Supply voltage of the control unit is too low (undervoltage)
  • B1004 LCP Lower Control Panel: Control unit does not match vehicle type
  • B1056 Automatic Air Conditioning: Problem in CAN communication with control unit DCM-RL
  • B1201 Electric seat adjustment front left: Hall sensor front height M27m3
  • B1213 If seat memory installed: ext left rearview mirror voltage faulty
  • B1214 If seat memory installed: ext right rearview mirror voltage faulty
  • B1226 In-car temperature sensor (B10/4)
  • B1227 Outside temperature indicator temp sensor (014)
  • B1128 Heater core temperature (B10/1)
  • B1229 Heater core temperature (B10/1)
  • B1230 Evaporator temperature sensor (B10/6)
  • B1231 ECT sensor (B11/4)
  • B1232 Refrigerant pressure sensor (B12)
  • B1233 Refrigerant temperature sensor (B12/1)
  • B1234 Sun sensor (B32)
  • B1235 Emissions sensor (B31)
  • B1241 Refrigerant Fill
  • B1246 PTS Parktronic: A42b1 (left outer sensor, front bumper) The plug connection has poor contact or is loose, or the sensor or cable is faulty
  • B1310 Left/Window airbag sensor is defective
  • B1315 Problem in Front passenger child seat recognition
  • B1416 Coolant circulation pump (M13)
  • B1417 Duovalve (Y21y1), left
  • B1418 Duovalve (Y21y2), right
  • B1419 Electromagnetic clutch (A9k1)
  • B1420 Idle speed increase
  • B1421 Pulse module (N05)
  • B1422 Series interface (K1) connection to instrument cluster (A1)
  • B1423 Switchover valve block (Y11)
  • B1424 Activated charcoal filler actuator (A32m2) open
  • B1425 Activated charcoal filler actuator (A32m2) closed
  • B1432 Non-USA DTC
  • B1459 Series interface (K2) connection to instrument cluster (A1)
  • B1462 Wide open throttle (WOT) position signal diesel engines
  • B1476 Airbag malfunction indicator and warning lamp is defective
  • B1481 HRA: Part E2m1 (Right headlamp range adjustment motor) has short to ground
  • B1489 HRA: Part E2m1 (Right headlamp range adjustment motor) has open or short to positive
  • B1492 HRA: Part E1m1 (Left headlamp range adjustement motor) has short to positive
  • B1617 Part E19/1 (Left license plate lamp) is defective
  • B1618 Part E19/2 (Right license plate lamp) is defective
  • B1628 Part E2e5 (Turn signal lamp) in module E2 (Right front headlamp unit) is defective.
  • B1703 Intermittant No Start in AAM Immobiliser Module
  • B1729 PSE Pneumatic system doorlock Control Module A37
  • B1736 Navigation system's CD Player: Check General CD, Check CD data block, Flimsy CD data
  • B1768 Faulty open data flap limit switch (0025) Front flap
  • B1773 HRA: Zero position programming has not yet been carried out or is not possible
  • B1850 Electric seat adjustment front right: CAN communication interrupted with DCM
Chassis
  • C1000 Traction System Control Module
  • C1010 Battery Voltage Low
  • C1011 ASR/ETS/ESP Circuit Open or Shorted
  • C1012 Battery Voltage High
  • C1020 CAN Communication Fault
  • C1021 CAN Communication With EA/CC/ISC Control Module Interrupted
  • C1024 CAN Communication With Engine Control Module Interrupted
  • C1025 CAN Communication BAS communication with ESP control unit faulty
  • C1100 Left Front Axle VSS Circuit Fault
  • C1101 Right Front Axle VSS Circuit Fault
  • C1102 ETS/ASR, ABS Left Axle VSS Circuit Fault
  • C1103 Right Rear Axle VSS Circuit Fault
  • C1121 AIRmatic: fault in component B24/3 (acceler. sensor)
  • C1122 AIRmatic: fault in component B24/4 (acceler. sensor)
  • C1123 AIRmatic: fault in component B24/6 (acceler. sensor)
  • C1132 AIRmatic: fault in component B22/8 (level sensor)
  • C1133 AIRmatic: fault in component B22/9 (level sensor)
  • C1135 AIRmatic: fault in component B22/3 (level sensor)
  • C1140 BAS light, play in steering column causes steering angle sensor to lose memory
  • C1142 ABS Lateral Acceleration Sensor Open/Shorted
  • C1144 AIRmatic: fault in component B7 (pressure sensor)
  • C1200 Stop Light Switch Open/Shorted/Implausible
  • C1300 Left Front Axle Solenoid Valve (Hold) (A7/3y6) Open/Shorted
  • C1303 Right Front Axle Solenoid Valve (Hold) Open/Shorted
  • C1311 Switchover Solenoid Valve (Release) Open/Shorted
  • C1312 Master Cylinder Switchover Valve
  • C1401 High Pressure Return Pump Circuit Open/Shorted; Will Not Shut Off
  • C1501 SPS P-Valve
  • C1504 BAS light, play in steering column causes steering angle sensor to lose memory
  • C1512 Brakes Overheated
  • C1600 Temperature After Engine Is Turned Off
New Systems
  • U0001 High Speed CAN Communication Bus
  • U0002 High Speed CAN Communication Bus Performance
  • U0003 High Speed CAN Communication Bus (+) open
  • U0004 High Speed CAN Communication Bus (+) low
  • U0005 High Speed CAN Communication Bus (+) high
  • U0006 High Speed CAN Communication Bus (-) open
  • U0007 High Speed CAN Communication Bus (-) low
  • U0008 High Speed CAN Communication Bus (-) high
  • U0009 High Speed CAN Communication Bus (-) shorted to Bus (+)
  • U0010 Medium Speed CAN Communication Bus
  • U0011 Medium Speed CAN Communication Bus Performance
  • U0012 Medium Speed CAN Communication Bus (+) open
  • U0013 Medium Speed CAN Communication Bus (+) low
  • U0014 Medium Speed CAN Communication Bus (+) high
  • U0015 Medium Speed CAN Communication Bus (-) open
  • U0016 Medium Speed CAN Communication Bus (-) low
  • U0017 Medium Speed CAN Communication Bus (-) high
  • U0018 Medium Speed CAN Communication Bus (-) shorted to Bus (+)
  • U0019 Low Speed CAN Communication Bus
  • U0020 Low Speed CAN Communication Bus Performance
  • U0021 Low Speed CAN Communication Bus (+) open
  • U0022 Low Speed CAN Communication Bus (+) low
  • U0023 Low Speed CAN Communication Bus (+) high
  • U0024 Low Speed CAN Communication Bus (-) open
  • U0025 Low Speed CAN Communication Bus (-) low
  • U0026 Low Speed CAN Communication Bus (-) high
  • U0027 Low Speed CAN Communication Bus (-) shorted to Bus (+)
  • U0028 Vehicle Communication Bus A
  • U0029 Vehicle Communication Bus A Performance
  • U0030 Vehicle Communication Bus A (+) open
  • U0031 Vehicle Communication Bus A (+) low
  • U0032 Vehicle Communication Bus A (+) high
  • U0033 Vehicle Communication Bus A (-) open
  • U0034 Vehicle Communication Bus A (-) low
  • U0035 Vehicle Communication Bus A (-) high
  • U0036 Vehicle Communication Bus A (-) shorted to Bus (+)
  • U0037 Vehicle Communication Bus B
  • U0038 Vehicle Communication Bus B Performance
  • U0039 Vehicle Communication Bus B (+) open
  • U0040 Vehicle Communication Bus B (+) low
  • U0041 Vehicle Communication Bus B (+) high
  • U0042 Vehicle Communication Bus B (-) open
  • U0043 Vehicle Communication Bus B (-) low
  • U0044 Vehicle Communication Bus B (-) high
  • U0045 Vehicle Communication Bus B (-) shorted to Bus (+)
  • U0046 Vehicle Communication Bus C
  • U0047 Vehicle Communication Bus C Performance
  • U0048 Vehicle Communication Bus C (+) open
  • U0049 Vehicle Communication Bus C (+) low
  • U0050 Vehicle Communication Bus C (+) high
  • U0051 Vehicle Communication Bus C (-) open
  • U0052 Vehicle Communication Bus C (-) low
  • U0053 Vehicle Communication Bus C (-) high
  • U0054 Vehicle Communication Bus C (-) shorted to Bus (+)
  • U0055 Vehicle Communication Bus D
  • U0056 Vehicle Communication Bus D Performance
  • U0057 Vehicle Communication Bus D (+) open
  • U0058 Vehicle Communication Bus D (+) low
  • U0059 Vehicle Communication Bus D (+) high
  • U0060 Vehicle Communication Bus D (-) open
  • U0061 Vehicle Communication Bus D (-) low
  • U0062 Vehicle Communication Bus D (-) high
  • U0063 Vehicle Communication Bus D (-) shorted to Bus (+)
  • U0064 Vehicle Communication Bus E
  • U0065 Vehicle Communication Bus E Performance
  • U0066 Vehicle Communication Bus E (+) open
  • U0067 Vehicle Communication Bus E (+) low
  • U0068 Vehicle Communication Bus E (+) high
  • U0069 Vehicle Communication Bus E (-) open
  • U0070 Vehicle Communication Bus E (-) low
  • U0071 Vehicle Communication Bus E (-) high
  • U0072 Vehicle Communication Bus E (-) shorted to Bus (+)
  • U0073 Control Module Communications Bus Off
  • U0100 Lost Communication with ECM/PCM A
  • U0101 Lost Communication with TCM
  • U0102 Lost Communication with Transfer Case Control Module
  • U0103 Lost Communication with Gear Shift Module
  • U0104 Lost Communication with Cruise Control Module
  • U0105 Lost Communication with Fuel Injector Control Module
  • U0192 Lost Communication with Television
  • U0197 Lost Communication with Telephone Control Module
  • U0198 Lost Communication with Telematic Control Module
  • U0222 Lost Communication with Door Window Motor A
  • U0235 Lost Communications with Cruise Control Front Distance Range Sensor
  • U0301 Software Incompatibility with ECM/PCM
  • U0302 Software Incompatibility with TCM (Transmission Control Module)
  • U0303 Software Incompatibility with Transfer Case Control Module
  • U0321 Software Incompatibility with Ride Level Control Module
  • U0326 Software Incompatibility with Vehicle Immobilizer Control Module
  • U0327 Software Incompatibility with Vehicle Security Control Module