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Error codes and their possible causes for Mercedes-Benz AEY engine (Solution)

 
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Michael II
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Post07-06-2002, 15:30    Subject: Error codes and their possible causes for Mercedes-Benz AEY engine Quote

Error codes and their causes for the AEY engine.


Error code: 513.

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 on the G28 or mounting base.

no signal

Possible causes.
Power outage or short circuit.



Error code: 519.

MAP sensor - G71 - Short circuit to positive.

Possible causes:
Short circuit to positive.
G71 malfunction.

Interruption/Short circuit.
Possible causes:
Power outage / Line interruption / Service disruption. Short circuit to ground.
G71 malfunction.

Power supply.

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



Error code: 522

Coolant temperature sensor G62, short circuit to ground.

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

Interruption/Short circuit after positive voltage.

Possible causes:
Line interruption or... The wire shorted to the positive terminal.
Error code: 523.
Intake air temperature sensor G42 - short circuit to ground.

Possible causes:
G42 error.
The wire has a short circuit to ground.

Interruption/Short circuit after the positive terminal.

Possible causes:
G42 error.
Line interruption or... Short circuit to positive.



Error code: 527

Intake air temperature sensor G72 - short circuit to ground.

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

Interruption/Short circuit after positive voltage.

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



Error code: 528.
Level sensor F96: Ground fault/short circuit.

Possible causes:
F96 malfunction.
Line interruption or... Short circuit to ground.



Error code: 532

Power supply, implausible signal.

Possible causes:
Voltage applied when ignition is switched on (terminal 15 not present).
Relay for power supply, terminal 30 (J317) is defective.



Error code: 539.

Fuel temperature sensor G81, short circuit to ground.

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

Interruption/Short circuit after positive voltage.

Possible causes:
G81 error.
Line interruption or... Short circuit to positive.



Error code: 542.
Needle feed motor G80: Overvoltage/short circuit after positive voltage.

Possible causes:
G80 failure.
Line interruption or... Short circuit.
Implausible signal.

Possible causes:
G80 failure.
Fuel injector line to the 3rd injector. Cylinder not in working order.
Fuel shortage.
Air in the fuel system.



Error code: 550
Injection start control, pressure differential.

Possible causes:
Injection timing valve (N108)) defective.
Needle feed mechanism (G80) malfunction.
Fuel tank emptied.
Fuel supply not working correctly.
Fuel shortage.
Air in the fuel system.
Funding start not OK.



Error code: 553.

Air mass flow meter G70: Implausible signal.

Possible causes:
G70 malfunction.

Short circuit to ground.

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

Short circuit to positive.

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



Error code: 575
Intake manifold pressure, control 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: 625.
Speed signal, implausible signal.

Possible causes:
No signal from the sensor for the speedometer (G21 or...). G22)

Vehicle speed signal - signal too high.

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


Error code: 626
Glow plug preheating indicator light - K29: Open circuit/short circuit to ground.

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

Short circuit to positive.

Possible causes:
Short circuit to positive.



Error code: 668.

Board voltage, terminal 30, implausible signal.

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

Signal too small.

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


Error code: 671.

Switch for GRA-E45: Undefined switch state.

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



Error code: 741

Brake pedal monitoring: implausible signal.

Possible causes:
Brake light switch (F) defective.
Brake pedal switch (F47) defective.
The switching points of both switches are not synchronized.


Error code: 765.

Donor for slide travel G149.

Possible causes:
Fuel injection pump failure.
Power outage / Alternatively, Short circuit.



Error code: 777
Accelerator pedal position sensor G79: Implausible signal.

Possible causes.
G79 is defective.
G79 is incorrectly configured.

Short circuit to positive.

Possible causes.
G79 is defective.
The wire shorted to the positive terminal.

Power supply (Code 18040)

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



Error code: 1028
Relay for fan J323: Open circuit/short circuit to ground.

Possible causes:
Line interruption.
Relay failure.
Short circuit to ground.

Short circuit to positive.

Possible causes.
The wire shorted to the positive terminal.



Error code: 1044
Control unit incorrectly programmed.

Possible causes:
Invalid control unit coding.



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

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



Error code: 1180.
Engine/AC compressor shut-off, electrical connection, short circuit to positive terminal.

Possible causes:
Short circuit in the cable connection.



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



Error code: 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: 1237
Fuel shut-off valve - N109, mechanical fault.

Possible causes:
N109 defective, leaking, or jammed.

Short circuit to ground.

Possible causes:
N109 is defective.
Line interruption or... Short circuit to ground.



Error code: 1242
Power amplifier modules in the control unit: Open circuit/short circuit after the positive terminal.

Possible causes:
All components that are activated by applying a positive voltage during actuator diagnostics.

Implausible signal.

Possible causes:
Exhaust gas recirculation (EGR) valve defective.



Error code: 1262
Wastegate control valve - N75: Open circuit/short circuit to ground.

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

Short circuit to positive.

Possible causes:
Short circuit to positive.



Error code: 1265
Exhaust gas recirculation (EGR) valve, N18: Open circuit/short circuit to ground.

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

Short circuit after positive terminal.

Possible causes:
Short circuit to positive.



Error code: 1266
Relay for glow plugs, J52: Short circuit/ground fault.

Possible causes:
Line interruption.
Defective glow plug relay.
Short circuit to ground.

Short circuit to positive.

Possible causes:
Short circuit to positive.



Error code: 1268.
Set point N146, control difference.

Possible causes:
Fuel injection pump failure.
Line interruption or... Short circuit.


lower strike price

Possible causes:
Quantity setting device misadjusted.
Quantity setting device blocked by dirt.

upper limit

Possible causes:
Quantity setting device misadjusted.
Quantity setting device blocked by dirt.



Error code: 1269.
Ventil for injection start N108 - interruption/short circuit to ground.

Possible causes:
Short circuit to ground.
Short circuit to ground.

Short circuit to positive.

Possible causes:
Short circuit to positive.



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, but not activated.
Drive-away protection adjusted.



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

Michael II
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