Customer questions

AUDI A4 B5 (8D2) 2.8 quattro - Diagnostic System (EOBD/OBDII) - P0056

Customer question from Sep 24, 2016, 3:37:47 PM

  • no

Answer from Sep 24, 2016, 8:19:16 PM

Hallo, thanks for your Question in the autoaid Community. Your described fault Codes means: LAMBDAPROBE 2 CYLINDER BANK 2 - heating circuit, MALFUNCTION
This could be a faulty Sensor, or a Problem with the wirings from the ecu to the Lambdaprobe. This can you Check when you Plug off the Plug from this Sensor at cold Engine and exhaust then measure the heating circuit from the ecu.
When there comes nothing else, then Check the wirings to the ecu. If there comes normally 12v then is the Sensor to renew.

You can also check the wirings with the correct wiring diagram for this Engine. Then measure the wirings from the ecu to the Plug of your localized Lambda Probe.

Team autoaid

A perfect match for your car:
Repair manuals & autoaid diagnostic tools

Discover now