Description
The table below lists the ECU DTC (diagnostic trouble codes) and the corresponding code generated by
blink codes.
| DTC | Blink Code | Possible causes of fault | Possible effects | Rectifying Fault |
|---|---|---|---|---|
| 00000 No fault recognised | 4444 | If a complaint exists, fault not recognised by self diagnosis | - | - |
| 00000 End of output | 0000 | - | - | - |
| 00281 Road Speed Signal (G68) No signal | 1231 |
-Open Circuit in wiring or short circuit from contact 50 at J220 to Speedometer G21 in dash panel insert -Speedometer sender G22 faulty -Speedometer G21 faulty |
-A/C compressor does not cut out in 1st gear at full load -Engine speed briefly drops below idling speed when disengaging clutch in overrun phase -Engine speed limited to 5300rpm (only with USA coding) |
-Test road speed signal -After repair, perform brief road test |
| 00513 Engine speed sender (G28) -Implausible signal -No signal - Mechanical fault |
2111 | -Metal swarf on G28 -Base of G28 loose -Clearance from G28 to ring gear of flywheel > 1.2mm -Teeth at ring gear of flywheel broken off -Open circuit in wiring between 3 pin connector in engine compartment and G28 -Open circuit in wiring between J220 and G28 -Short circuit between contact 47 of J220 and screening or engine earth -Open circuit in screening of G28 -3 pin plug connection of G28 & G4 in engine compartment mixed up -G28 faulty -Input for G28 at J220 faulty (J220 faulty) |
-Engine does not start -Misfiring -Engine cuts out -Engine does not start |
-Test G28 -Rectify short circuit or open circuit -Plug connectors G4 & G28 correctly |
| 00514 Ignition timing (G4) -No signal |
2112 | -Base of G4 loose -Clearance from G4 to pin of flywheel > 1.2mm -Pin on flywheel bent or broken off -Open circuit in wiring between 3 pin connector in engine compartment and G4 -Open circuit in wiring between J220 and G4 -Short circuit between contact 49 of J220 and screening or engine earth -Open circuit in screening of G4 -3 pin plug connection of G4 & G28 in engine compartment mixed up -G4 faulty -Input for G4 at J220 faulty (J220 faulty) |
-Fault prior to engine start or attempt at starting: engine does not start -Fault after engine start: engine continues running in limp mode -Engine does not start |
-Test G4 -Rectify short circuit or open circuit -Plug connectors G4 & G28 correctly |
| 00515 Hall Sender (G40) -Open circuit/short cicuit to positive -Signal to positive -Short circuit to earth -Signal to earth -Mechanical fault -Fault in basic setting |
2113 | -No supply voltage for G40 from J220 -No earth for G40 -Open circuit in signal wire to J220 or short to earth of signal wire -Short circuit between contacts 8 & 12 at J220 -Open circuit in wiring between 3 pin plug connection in engine compartment abd J220 -Position of pin of G4 -G40 faulty -Input for G40 in J220 faulty (J220 faulty) -Toothed belt jumped off -Basic setting of hall sender -Pin of ignition timing sender -G4 bent or broken off |
-Engine does not startr -Poor performance |
-Test G40 -Rectify short circuit or open circuit -Check toothed belt (camshaft setting) -Test G40 -Basic setting of hall sender -Check pin of G4 |
| 00516 Idling speed switch (F60) -Open circuit/short circuit to positive -Short circuit to earth | 2121 | -Setting of F60 -Throttle valve jamming -Closing damper jamming or incorrectly set -Footmat resting on accelerator pedal -Accelerator cable adjustment -Open circuit in wiring betwen F60 and J220 -Input for F60 in J220 faulty (J220 faulty) -Cable from F60 to J220 has short to earth -Moisture in throttle valve connector | -Idle speed control moves to open loop control -A/C compressor is switched off -Idling speed not within specified range |
-Test F60 and adjust -Check closing damper -Adjust throttle cable -Rectify open circuit in wiring -Rectify short circuit |
| 00518 Throttle Valve Potentiometer G69 -Open circuit / short circuit to positive -Signal too large -Short circuit to earth -Signal too small -Implausible signal |
2212 |
-Open circuit or short circuit to positive in G69 or in cable connection between G69 & J220 -Short circuit to earth in G69 or in cable connection between G69 and J220 -G69 faulty -J220 faulty Moisture or corrosion in plug connection at G69 |
-Boost pressure is not reached -Poor performance |
-Test G69 |
| 00519 Intake manifold pressure sender G71 -Signal too small -Signal too large -Control difference |
2222 | -Vacuum line from intake manifold to J220 interrupted, blocked, kinked or crimped -Liquid seperator in hose line from intake manifold to J220 full of liquid -Blow off valve faulty -Solenoid valve for boost pressure limiter N75 faulty -Pressure sensor in Motronic control unit J220 faulty -Turbocharger faulty |
-Poor performance | -Check / drain vacuum lines of liquid seperator -Test solenoid valve for boost pressure limiter -Test turbocharger |
| 00522 Coolant temperature sender G62 | 2312 |
-Short circuit to earth -Moisture in connector of G62 -Open circuit between G62 and J220 -Contact resistances between G62 & J220 -G62 faulty -Input of G62 in J220 faulty (J220 faulty) |
-Cold starting problems in very cold temperatures -Driving faults during warm up phase | -Test G62 |
| 00523 Intake air temperature sender G42 -Short circuit to earth -Open circuit / short circuit to positive | 2322 |
-Short circuit to earth -Open circuit in wiring between G42 & J220 -G42 faulty -Input of G42 in J220 faulty (J220 faulty) |
-Possible driving faults in warm up phase at low temperatures | -Test G42 |
| 00524 Knock sensor #1 G61 -No signal |
2142 |
-Corrosion in connector -G61 loose -Open circuit in wiring or short circuit in wiring between G61 & J220 -Short circuit between G61 and earth or to screening -G61 faulty -Input for G61 in J220 faulty (J220 faulty) |
-High fuel consumption -Poor performance -Boost pressure is not reached |
-Repair contacts -Tightening torque 20Nm -Rectify open or short circuit |
| 00525 Lambda probe G39 -Short circuit to positive -No signal -Short circuit to earth | 2343 |
-Open circuit in wiring to J220 -Probe heater not operating -Fuse #25 faulty -Heating resistor in probe faulty -Wiring of probe heater -Short circuit of signal wire to earth -Short circuit of signal wire to screening -Fuel tank empty (at least 10 litres) -Fuel system pressure -Failure of spark plugs, ignition coils and ignition output stages -Ingress of air to G70 -Leak in exhaust system up to catalyst -Faulty lambda probe -Open circuit in earth cable to contact 10 J220 to engine block |
-Exhaust not in order -Increased fuel consumption -Formation of black smoke -Spark plugs soot up -Lambda control moves to open loop |
-Rectify open circuit in wiring -Test lambda probe heater -Basic setting of engine with VAG1551 /Vag Com |
| 00528 Altitude sensor F96 -Open circuit / short circuit to positive -Short circuit to earth | 2223 |
-Short circuit to positive in F96 or in cable connection between F96 & J220 -Short circuit to earth in F96 or in cable connection between F96 & J220 -F96 faulty -Input for F96 in J220 faulty (J220 faulty) |
-Poor performance -Boost perssure not reached |
-Test F96 -Test boost pressure |
| 00532 Supply Voltage -Signal too large -Signal too small | 2234 |
-Supply voltage greater than 16 volts -Alternator faulty -Starting with two series connected batteries -Poor earth connection to J220 -Battery discharged -Current drain with igntion off |
-J220 destroyed -Idling speed not within specified range -Voltage below 6 volts -Engine not running |
-Test voltage -Check battery charge state -Test voltage supply |
| 00533 Idle speed control -Adaptation limit esceeded -Adaptation limit -Adapatation limit no reached | 2231 |
-Idling speed stabilisation valve N71 sticking -Air mass meter G70 characteristic curve shifted -Contact resistance at connector of N71 -N71 sticking in open position -G70 characteristic curve shifted -Ingress of air betwen G70 an N71 -Throttle valve potentiometer G69 incorrectly set Throttle body valve jamming |
-Idling speed too low -Idling speed too high -Engine vibrating -Poor throttle response -Irregular Idling |
-Test N71 -Test G70 -Recify air leak -Test G69and adjust -Test throttle body valve replace if necessary |
| 00537 Lambda sensor control -Control limit exceeded -Control limit not reached | 2341 |
-Fuel tank empty at least 10 litres -Fuel system pressure too low -Failure of spark plugs, ignition coils and ignition output stages -Ingress of air to G70 -Leak in exhaust system up to catalyst -Faulty lambda probe -Fuel system pressure too high |
-CO upstream of catalyst less than 0.3% -Formation of black smoke -Spark plugs sooted -CO upstream of catalyst greater than 1% |
-Fill up fuel tank -Recify air leak -Test lambda probe -Test fuel system pressure -Check hose connection intake manifold/ pressure regulator (fuel shut off valve on overrun -Check fuel return line of fouling, kinking and damage |
| 00540 Knock Sensor #2, G66 - No change in signal | 2144 |
-Corrosion in connector -G66 loose -Open circuit in wiring or short circuit between G66 and J220 -Short circuit between G66 and earth or to screening -G66 faulty -Input for G66 in J220 faulty (J220 faulty) |
-High fuel consumption -Poor performance -Boost pressure is not reached |
-Repair contacts -Tightening torque 20Nm -Rectify open or short circuit |
| 00543 Engine speed to max exceeded -Signal too large | 2214 | -Engine overrevs (switching fault) | -Possible engine damage |
-Engine speed has exceeded 7200 RPM as a result of an operating fault |
| 00544 Boost pressure to maximum exceeded -Implausible signal -Signal too large | 2224 |
-Ingress of air downstream of turbocharger -Blow off valve faulty -Solenoid valve for boost pressure limiter N75 faulty -Leak in vacuum line from inlet manifold to J220 or is disconnected -Pressure sensor in Motronic control unit J220 is faulty |
-Hard misfire at full load -Boost pressure too high -Severe boost pressure fluctuations at full load |
-Check connections -Test blow off valve -Test solenoid valve for boost pressure limiter N75 -Test boost pressure |
| 00553 Air mass meter G70 -Signal too large -Signal too small | 2324 |
-Open circuit in wiring between G70 and J220 -Voltage supply to G70 interrupted or short to earth -Short to earth of signal wire to J220 -Short circuit of signal wire to J220 -G70 faulty -Input for G70 in J220 faulty (J220 faulty) | -Slight handling faults (performance) | -Test G70 |
| 00561 Mixture adaptation -Adaptation limit (multiplicative) exceeded -Adaptation limit (multiplicative) not reached -Adaptation limit (additive) exceeded -Adaptation limit (additive) not reached | 2413 |
-Fuel system pressure too low or too high -Failure of spark plugs, ignition coils and ignition output stages -Ingress of air to G70 -Leak in exhaust system up to catalyst -Incorrect signal from air mass meter G70 |
-Increased fuel consumption -Formation of black smoke -Spark plugs sooted up |
-Fill fuel tank -Recify leak -Test fuel system pressure -Test G70 |
| 00577 Knock control cyl #1 00578 Knock control cyl #2 00579 Knock control cyl #3 -Control limit exceeded | 2141 |
-Poor fuel quality (less than 91 RON) -Open circuit in signal wire from engine speed sender G28 or ignition timing sender G4 (loose contact, sporadic fault) or signal wire wrongly connected -Abnormal engine noises (loose ancilliary) -Open circuit in screening of G61 -Injector fouled |
-High fuel consumption -Poor performance -Max speed is not reached -Boost pressure reduction |
-Replace J220 -Fill tank with at least 91 RON -Test G28 and G4 -Rectify open circuit -Replace injector |
| 00580 Knock control cyl #4 00581 Knock control cyl #5 -Control limit exceeded | 2143 |
-Poor fuel quality (less than 91 RON) -Open circuit in signal wire from engine speed sender G28 or ignition timing sender G4 (loose contact, sporadic fault) or signal wire wrongly connected -Abnormal engine noises (loose ancilliary) -Open circuit in screening of G66 -Injector fouled |
-High fuel consumption -Poor performance -Max speed is not reached -Boost pressure reduction |
-Replace J220 -Fill tank with at least 91 RON -Test G28 and G4 -Rectify open circuit -Replace injector |
| 01247 Solenoid valve 1 for activated charcoal canister N80 -Short circuit to positive -Open circuit/short circuit to earth | 4343 |
-Short circuit to positive in N80 or in the cable connection between N80 and J220 -Short circuit to earth in N80 or in the cable connection between N80 and J220 -Thermofuse S75 faulty -Open circuit in wiring |
-Short circuit to positive in N80 or in the cable connection between N80 and J220 -Short circuit to earth in N80 or in the cable connection between N80 and J220 -Thermofuse S75 faulty -Open circuit in wiring | -Test N80 |
| 01249 Injector cyl #1 N30 -Open circuit/short circuit to earth -Short circuit to positive | 4411 |
-Short circuit to earth -Open circuit in wiring -Fuse S28 faulty -Short circuit to positive at connector or in injector | -Engine does not run smoothly |
-Test injectors -Check wiring & fuse S28 |
| 01250 Injector cyl #2 N31 -Open circuit/short circuit to earth -Short circuit to positive | 4412 |
-Short circuit to earth -Open circuit in wiring -Fuse S28 faulty -Short circuit to positive at connector or in injector | -Engine does not run smoothly |
-Test injectors -Check wiring & fuse S28 |
| 01251 Injector cyl #3 N32 -Open circuit/short circuit to earth -Short circuit to positive | 4413 |
-Short circuit to earth -Open circuit in wiring -Fuse S28 faulty -Short circuit to positive at connector or in injector | -Engine does not run smoothly |
-Test injectors -Check wiring & fuse S28 |
| 01252 Injector cyl #4 N33 -Open circuit/short circuit to earth -Short circuit to positive | 4414 |
-Short circuit to earth -Open circuit in wiring -Fuse S28 faulty -Short circuit to positive at connector or in injector | -Engine does not run smoothly |
-Test injectors -Check wiring & fuse S28 |
| 01253 Injector cyl #5 N83 -Open circuit/short circuit to earth -Short circuit to positive | 4421 |
-Short circuit to earth -Open circuit in wiring -Fuse S28 faulty -Short circuit to positive at connector or in injector | -Engine does not run smoothly |
-Test injectors -Check wiring & fuse S28 |
| 01257 Idle speed Stabilisation Valve N71 -Short circuit to positive -Open circuit / short circuit to earth | 4431 |
-Short circuit to positive in N71 or in cable connection between N71 and contact 4 of J220 -Short circuit to earth in N71 or in cable connection between N71 and J220 -Fuse S24 faulty -Open circuit in wiring |
-At engine operating temperature idling speed differs from specification (800+rpm) -With cold engine, engine may cut out -In emergency running mode, idling speed 1100-1200rpm when warm -A/C compressor cuts out when idling -Irregular idling speed | -Test N71 |
| 01262 Solenoid valve for boost pressure limiter N75 -Short circuit to positive -Open circuit / short circuit to earth | 4442 |
-Short circuit to positive in N75 or in cable connection between N75 and contact 23 of J220 -Short circuit to earth in N75 or in cable connection between N75 and J220 -Fuse S24 faulty -Open circuit in wiring |
-Boost pressure too high -Boost pressure too low -Hard misfire at full load because of "Boost pressure to max. exceeded, implausible signal" fault | -Test N75 |
| 65535 Control unit faulty | 1111 |
-Earth connection to J220 contacts 10,14,19,24 -Control unit faulty |
-Engine does not start -With ignition on, no voltage at contact 37 of J220 | -Test earth connection of J220 |