Seat Ibiza 6L error code 16415 - Bank 1, Sensor 1; Heater circuit (Solution)

Hello everyone,

I have a new patient again.
Both lambda sensors have the same issue: the heating element has a short circuit to ground.
Does anyone know this error?
I've checked the fuses, and they are all okay.
Now, I need a wiring diagram or the pinout of the connectors so that I can narrow down the fault to a specific wire or connection.

Thank you very much for your help!

Attached are the errors from memory.

Code:

dresse 01: Motor        Labeldatei: RKS\036-906-034-APE.lbl    Teilenummer: 036 906 034 HA    Bauteil:  MARELLI 4TV        6290     Codierung: 00071    Betriebsnr.: WSC 31414     VCID: 58BA2DF2B87EC9D838B    VSSZZZ6LZ5D003972     SEZ7Z0D2676348 2 Fehler gefunden: 16415 - Bank 1 Sonde 1; Heizstromkreis             P0031 - 35-00 - Kurzschluss nach Masse 16421 - Bank 1 Sonde 2; Heizstromkreis             P0037 - 35-00 - Kurzschluss nach Masse Readiness: 1110 0101 -------------------------------------------------------------------------------

Best regards,

Christian.

Should we perform a VIN query at Seat, or will you provide us with the vehicle data?

Hello,

Sorry, I forgot.
The engine is a PKY; I believe it's a 1.4 or 1.2 gasoline engine. Unfortunately, I don't really know much about gasoline engines.
Year of construction: 01/05.

You're welcome!

Sure, here's the translation:

"SG" can have different meanings depending on the context. It could stand for "Spielgemeinschaft," which is a German term for a sports club or association that combines players from multiple teams or organizations. Alternatively, it could refer to "Säkularkantor," a type of church musician who does not hold religious beliefs. Finally, "SG" might be an abbreviation for "Sonstige," meaning "other" or "miscellaneous."

most likely BKY.

Hello everyone,

After searching for a while, the error was finally found.
Both oxygen sensors are defective. They are connected in series.
I'm not sure why the probes failed.
The test is performed by measuring the insulation resistance between the heating element and the housing.


SG Christian.

And which value do you need to measure, or not measure?
Does this error indicate a reading of 0 ohms when measuring against ground?

Hi,

Yes, the resistance of the heating element against the housing.
The meter should display "OL" (Overload), which indicates that the insulation is good. If it's not a Fluke meter, then look for whatever reading the meter displays when the two test leads are held in the air.
If the measuring device displays a value outside of the ohm range, then the probe or insulation is defective.

I hope this explanation helps you.

Sure, here's the translation:

"SG" can have different meanings depending on the context. It could stand for "Spielgemeinschaft," which is a German term for a sports club or association that combines players from multiple teams or organizations. Alternatively, it could refer to "Säkularkantor," a type of church musician who does not hold religious beliefs. Finally, "SG" might be an abbreviation for "Sonstige," meaning "other" or "miscellaneous."

Please also carefully check if the wiring is correct!

After a long time, here's the solution to the problem.

Both probes were defective, and they are connected in series, which doesn't necessarily make testing any easier.
Two new sensors and the car is running again.
Unfortunately, I have no idea why the probes were defective.

Thank you for the feedback .

Quote:

Weshalb die Sonden defekt waren, hab ich leider keine Ahnung.

They are actually wear-and-tear parts. In some spare part descriptions, for example from Bosch, it states: "replace every 120,000 km."