Error codes and their possible causes for Mercedes-Benz A/B-Class (Solution)

Error codes and their causes for the AVB motor.



Error code: 515
Hall sensor G40: No signal.

Possible causes:
G40 malfunction.
The dispenser is either empty or not properly attached.
Clearance between the distributor and the camshaft gear is not within specification.
Line interruption or short circuit to ground.

Signal out of tolerance.

Possible causes.
Hub with drive ring twisted on camshaft, loose.



Error code: 741

Brake pedal monitoring: implausible signal.

Possible causes:
Brake light switch (F) defective.
Brake pedal switch (F47) defective.



Error code: 1117
Load signal for generator terminal DF: implausible signal.

Possible causes:
Generator malfunction.
Voltage regulator faulty.
Line interruption.



Error code: 1193.
Relay for low heating power - J359: Short circuit to positive.

Possible causes:
Line interruption.
Short circuit to positive.
Relay for low heating power - J359.
defective



1194
Relay for high heating power - J360, short circuit to positive.

Possible causes:
Line interruption.
Short circuit to positive.
Relay for high heating power - J360 is defective.



Error code: 1282
Vacuum switching valve for throttle control N236 - Short circuit to ground/open circuit.

Possible causes:
Line interruption.
Faulty vacuum control valve for the throttle valve.

Short circuit after positive terminal.

Possible causes:
Short circuit to positive.

defective

Possible causes:
Check valve defective.



Error code: 16485
Air mass flow meter G70: Implausible signal.

Possible causes:
G70 malfunction.
Line interruption or... Short circuit to ground.



Error code: 16685
Misfire detected in cylinder 1.

Possible causes:
No combustion in cylinder 1.
No compression pressure.



Error code: 16686.
Misfire detected in cylinder 2.

Possible causes:
No combustion in cylinder 2.
No compression pressure.



Error code: 16687.
Misfire detected in cylinder 3.

Possible causes:
No combustion in cylinder 3.
No compression pressure.



Error code: 16688.
Misfire detected in cylinder 4.

Possible causes:
No combustion in cylinder 4.
No compression pressure.



Error code: 16705.
Crankshaft speed sensor G28: Implausible signal.

Possible causes:
G28 error.
Distance between the crankshaft position sensor and the toothed wheel is too large.
Metal shavings at G28 or... Base plate.



Error code: 16706
Crankshaft speed sensor G28: No signal.

Possible causes.
Line interruption or... Short circuit.
G28 error.



Error code: 16725
Camshaft position sensor G40, implausible signal.

Possible causes:
G40 malfunction.
The dispenser is either empty or not properly attached.
Clearance between the distributor and the camshaft gear is not within specification.
Line interruption or... Short circuit to ground.
Hub with drive ring twisted on camshaft, loose.



Error code: 16885.
Vehicle speed signal: implausible signal.

Possible causes.
No signal from the vehicle speed sensor (G22).



Error code: 16944
Power supply, implausible signal.

Possible causes:
Relay for power supply, terminal 30 (J317) defective.
Relay intermittently fails.



Error code: 16946
Power supply signal too low.

Possible causes:
Power supply below 4V.



Error code: 16947
Power supply voltage too high.

Possible causes:
Power supply exceeding 20 V.



Error code: 16955.
Brake light switch - implausible signal.

Possible causes.
Brake light switch (F) defective.
Brake pedal switch (F47) defective.



Error code: 16989.
Control unit J248 is defective.



Error code: 17552.
Air mass flow meter G70: Disconnection/short circuit to ground.

Possible causes:
G70 malfunction.
Line interruption or... Short circuit to ground.



Error code: 17553
Air mass flow meter G70, short circuit to positive.

Possible causes:
Short circuit to positive _ G70 defective.
Line interruption or... Short circuit to positive.



Error code: 17554.
Air mass flow meter G70, power supply voltage.

Possible causes:
Operating voltage too high or too low.
Line interruption.



Error code: 17563.
MAP sensor G71, short circuit to positive.

Possible causes:
Short circuit to positive.
G71 malfunction.



Error code: 17564.
Intake manifold pressure sensor G71: Open circuit/short circuit to ground.

Possible causes:
G71 malfunction.
Line interruption or... Short circuit to ground.



Error code: 17565.
Sensor for intake manifold pressure G71, supply voltage.

Possible causes:
G71 malfunction.
Line interruption or... Short circuit.



Error code: 17568
Intake air temperature sensor G72 - short circuit to ground.

Possible causes:
G72 is defective.
The wire has a short circuit to ground.



Error code: 17569.
Intake air temperature sensor G72 - open circuit/short circuit after positive voltage.

Possible causes:
G72 is defective.
Line interruption or... Short circuit to positive.



Error code: 17570
Fuel temperature sensor G81, short circuit to ground.

Possible causes:
G81 error.
The wire has a short circuit to ground.



Error code: 17571.
Fuel temperature sensor G81: Open circuit/short circuit after positive terminal.

Possible causes:
G81 error.
The wire shorted to the positive terminal.
Line interruption.



Error code: 17663.
Coolant temperature sensor G62, short circuit to ground.

Possible causes:
G62 fault.
The wire has a short circuit to ground.



Error code: 17664.
Coolant temperature sensor G62 - open circuit/short circuit after the positive terminal.

Possible causes:
G62 fault.
Line interruption or... The wire shorted to the positive terminal.



Error code: 17668.
Valve for pump/nozzle, cylinder 1, N240 - implausible signal.

Possible causes:
Valve for pump/nozzle cannot be adjusted.



Error code: 17669.
Valve for pump/nozzle, cylinder 1, N240: Control limit exceeded.

Possible causes:
Timing values are too large.
Transition resistances.



Error code: 17670.
Valve for pump/nozzle, cylinder 1, N240: Control limit exceeded.

Possible causes:
Time limits are too small.
Fuel shortage.
Air in the fuel system.



Error code: 17671.
Valve for pump/nozzle, cylinder 2, N241 - implausible signal.

Possible causes:
Valve for pump/nozzle cannot be adjusted.



Error code: 17672.
Valve for pump/nozzle, cylinder 2, N241 - control limit exceeded.

Possible causes:
Timing values are too large.
Transition resistances.



Error code: 17673.
Valve for pump/nozzle, cylinder 2, N241: Control limit exceeded.

Possible causes:
Time limits are too small.
Fuel shortage.
Air in the fuel system.



Error code: 17674
Valve for pump/nozzle, cylinder 3, N242 - implausible signal.

Possible causes:
Valve for pump/nozzle cannot be adjusted.



Error code: 17675.
Valve for pump/nozzle, cylinder 3, N242 - control limit exceeded.

Possible causes:
Timing values are too large.
Transition resistances.



Error code: 17676
Valve for pump/nozzle, cylinder 3, N242: Control limit exceeded.

Possible causes:
Time limits are too small.
Fuel shortage.
Air in the fuel system.



Error code: 17677.
Valve for pump/nozzle, cylinder 4, N243 - implausible signal.

Possible causes:
Valve for pump/nozzle cannot be adjusted.



Error code: 17678
Valve for pump/nozzle, cylinder 4, N243 - control limit exceeded.

Possible causes:
Timing values are too large.
Transition resistances.



Error code: 17679
Valve for pump/nozzle, cylinder 4, N243: Regulation limit exceeded.

Possible causes:
Time limits are too small.
Fuel shortage.
Air in the fuel system.



Error code: 17795.
Control unit defective.

Possible causes:
Control unit internally defective.



Error code: 17810
Exhaust gas recirculation (EGR) valve, short circuit to positive.

Possible causes:
Short circuit to positive.



Error code: 17849.
Exhaust gas recirculation (EGR) valve - short circuit to ground/open circuit.

Possible causes:
Line interruption.
Exhaust gas recirculation (EGR) valve malfunction.
Short circuit to ground.



Error code: 17910
Fuel pump relay J17: Short circuit to positive.

Possible causes:
Short circuit to positive.
J17 error.



Error code: 17911
Load signal from generator terminal DF: implausible signal.

Possible causes:
Generator malfunction.
Voltage regulator faulty.
Line interruption.



Error code: 17932
Fuel pump relay J17 - open circuit/short to ground.

Possible causes:
Line interruption or... Short circuit to ground.
J17 error.



Error code: 17948.
Vehicle speed signal, signal too high.

Possible causes:
Speed exceeding 260 km/h.
Control panel insert defective.



Error code: 17954.
Wastegate control valve N75 - short circuit to positive.

Possible causes:
Short circuit to positive.



Error code: 17957.
Wastegate control valve (N75) - open circuit/short circuit to ground.

Possible causes:
Line interruption.
Solenoid valve defective.
Short circuit to ground.



Error code: 17958.
Boost pressure regulation differential.

Possible causes:
Faulty boost pressure control valve (N75).
Hose connections reversed, not properly connected, leaking.
Air leak between turbocharger and engine (charge air path).
Turbocharger failure.



Error code: 17964.
Boost pressure regulation: Limit exceeded.

Possible causes:
Faulty wastegate control valve (N75), leaky hose connections.
Turbocharger failure.
Air leak between turbocharger and engine (charge air path).



Error code: 17965
Boost pressure regulation: Limit exceeded.

Possible causes:
Hose connections reversed, not properly connected, leaking.



Error code: 17977
Switch for GRA E45: Implausible signal.

Possible causes:
E45 malfunction.
Line interruption or... Short circuit.



Error code: 17978
Engine control unit locked.

Possible causes:
Attempted start with unauthorized access.
Key.
Attempted manipulation.
Short circuit.
Communication line.
incorrect encoding.
Error in the system for...
Drive-away protection.
Immobilizer control unit defective/missing.
Engine control unit replaced and not adapted to the immobilizer system.



Error code: 18008
Power supply, circuit 15: Voltage too low.

Possible causes:
No voltage detected when ignition is turned on (terminal 15).



Error code: 18009
Relay for voltage supply, terminal 30, model J317.

Possible causes:
Relay for power supply, terminal 30 (J317) is defective.
Relay intermittently fails.



Error code: 18017
Crash shutdown triggered.

Possible causes:
Airbag deployed.



Error code: 18020
Engine control unit incorrectly programmed.

Possible causes:
Invalid control unit coding.



Error code: 18024
Glow plug preheating indicator light - short circuit to positive terminal.

Possible causes:
Short circuit after Plus.



Error code: 18025
Glow plug preheating indicator light - K29 - Open circuit/short circuit to ground.

Possible causes:
Line interruption.
Light bulb defective.
Short circuit to ground.



Error code: 18026
Relay for glow plugs, J52, short circuit to positive.

Possible causes:
Short circuit on the positive wire after J52, defect.



18027
J52 glow plug relay - open circuit/short circuit to ground.

Possible causes:
Line interruption or... Short circuit to ground.
J52 malfunction.



Error code: 18034
Data bus fault: Missing message from the transmission control unit.

Possible causes:
Errors in the data lines to the transmission control module (TCM).



Error code: 18039
Accelerator pedal position sensor (G79) signal too high.

Possible causes:
G79 is defective.



Error code: 18040
Throttle position sensor (G79) supply voltage.

Possible causes:
Operating voltage too high or too low.
Line interruption.



Error code: 18044
Data bus error: Missing message from the airbag control unit.

Possible causes:
Errors in the data lines to the airbag control unit.



Error code: 18047
Accelerator pedal position sensor 1/2: Implausible signal from G79 + G185.

Possible causes:
G79 is defective.



18048
Control unit J248 is defective.

Possible causes:
Control unit internally defective.



Error code: 18062
Please read the error memory of the instrument cluster.

Possible causes.
Faulty oil level/temperature sensor.



Error code: 18065
Air conditioning unit, entrance/exit: Short circuit to positive terminal.

Possible causes:
Short circuit in the cable connection.



Error code: 18067.
Cooler fan control 1: Short circuit to positive.

Possible causes:
Short circuit in the cable connection.



Error code: 18071
Controlling valves for pump/nozzle. Short circuit to positive.

Possible causes:
Short circuit to positive in the engine wiring harness.
Internal short circuit to positive voltage in the engine control unit.



Error code: 18072
Controlling valves for pump/nozzle; electrical fault in the circuit.

Possible causes:
Line interruption or... Short circuit to ground in the motor wiring harness.



Error code: 18073
Controlling valves for pump/nozzle due to mechanical failure.

Possible causes:
Pump-nozzle unit mechanically defective.



Error code: 18074
Valve for pump/nozzle, cylinder 1, N240 - electrical fault in the circuit.

Possible causes:
Line interruption or... Short circuit to ground in the motor wiring harness.



Error code: 18075
Valve for pump/nozzle, cylinder 2, N241 - electrical fault in the circuit.

Possible causes:
Line interruption or... Short circuit to ground in the motor wiring harness.



Error code: 18076.
Valve for pump/nozzle, cylinder 3, N242 - electrical fault in the circuit.

Possible causes:
Line interruption or... Short circuit to ground in the motor wiring harness.



Error code: 18077
Valve for pump/nozzle, cylinder 4, N243, electrical fault in the circuit.

Possible causes:
Line interruption or... Short circuit to ground in the motor wiring harness.



Error code: 18080
Cooler fan control 1. Short circuit/ground fault.

Possible causes:
Line interruption or... Short circuit to ground.



Error code: 19456
Glow plug preheating system warning light K29 - error message from the instrument cluster.

Possible causes:
Errors in the data cables leading to the instrument cluster.



Error code: 19458.
Kick-down switch F8: implausible signal.

Possible causes:
G79 is defective.



Error code: 19459.
Relay for low heating power, J359, short circuit to positive.

Possible causes:
Line interruption.
Short circuit to positive.
Relay for low heating power, model J359, is defective.



Error code: 19461.
Relay for high heating power, J360, short circuit to positive.

Possible causes:
Line interruption.
Short circuit to positive.
Relay for low heating power, model J360, is defective.



Error code: 19463.
Camshaft position sensor G40 - No signal.

Possible causes:
G40 malfunction.
The dispenser is either empty or not properly attached.
Clearance between the distributor and the camshaft gear is not within specification.
Line interruption or... Short circuit to ground.



Error code: 19464.
Camshaft position sensor G40 signal out of range.

Possible causes:
Hub with cam gear attached to camshaft.
twisted, loose



Error code: 19560
Intake manifold control valve N239 - short circuit to positive.

Possible causes:
Short circuit to positive.



Error code: 19561
Vacuum control valve for throttle valve N239 - Short circuit to ground/open circuit.

Possible causes:
Line interruption.
Faulty vacuum control valve for the throttle valve.



Error code: 65535
Please provide the text you would like me to translate from German to English. Control unit J248 is defective.