SOFTWARE SOLUTION · NOX SENSOR · BAMMENTAL

NOx OFF – software solution for NOx system problems

Recurring NOx warnings? We offer NOx OFF for suitable control units as a standalone software service. Tell us your vehicle and receive a specific quote.

NOx OFFTargeted adjustment of system monitoring
Vehicle-specificCheck ECU and software version
Direct inquirySend fault codes and vehicle details

01 / SERVICE

What we offer you.

01

What does NOx OFF mean?

NOx sensors provide measurements for exhaust aftertreatment. NOx OFF is a software adjustment to the corresponding monitoring tailored to the specific system.

02

Your vehicle, your software scope

We tailor the work to the engine control unit and desired solution. Depending on the vehicle, NOx OFF and AdBlue OFF are different services.

03

Go straight to an inquiry

The model, model year, engine and displayed message are enough for initial contact. We confirm the price and exact scope before the order.

FAULT CODES · DTC · OBD

Common fault codes and their meanings.

These codes are frequently read during inquiries about this system. A DTC identifies the detected deviation – the actual cause emerges only from the vehicle, software version, fault status and measured values.

NOx sensor 1 / upstream of SCR catalyst

P2200
NOx sensor: circuit fault, bank 1 sensor 1
P2201
NOx sensor: range/performance, bank 1 sensor 1
P2202
NOx sensor: signal low, bank 1 sensor 1
P2203
NOx sensor: signal high, bank 1 sensor 1
P2204
NOx sensor: intermittent/interrupted signal, bank 1 sensor 1
P2205
NOx sensor heater: control circuit, bank 1 sensor 1
P2209
NOx sensor heater: range/performance, bank 1 sensor 1
P220A
NOx sensor supply voltage fault

NOx sensor 2, communication and plausibility

P229E
NOx sensor: circuit fault, bank 1 sensor 2
P229F
NOx sensor: range/performance, bank 1 sensor 2
P22A0
NOx sensor 2: signal low
P22A1
NOx sensor 2: signal high
P22A2
NOx sensor 2: intermittent/interrupted signal
P22A6
NOx sensor 2 heater: monitoring/circuit fault
U029D
Lost communication with NOx sensor A
U029E
Lost communication with NOx sensor B
P11DC
NOx sensor: plausibility/signal fault (manufacturer-specific)
P220F
NOx sensor: control/plausibility fault (manufacturer-specific definition)

NOx codes vary by sensor position, manufacturer and diagnostic tool. U029D/U029E often indicate communication or power supply issues; P20EE relates to SCR efficiency and does not automatically indicate a defective NOx sensor.

02 / PROCESS

Booking your service is this easy.

  1. Send your vehicle details and requirements

    Send the model, engine and model year via WhatsApp or the contact form. If there is an error, a photo of the message helps.

  2. Receive your quote

    You will receive the appropriate scope of work and price. We answer your questions and coordinate the work.

  3. Arrange an appointment or shipping

    Have the agreed service carried out. Any shipment must be arranged with us in advance.

QUESTIONS & ANSWERS

Well informed in advance.

Which faults can NOx OFF address?

NOx OFF is intended for clearly identified faults in NOx sensing and associated monitoring. We check specific support using the ECU and fault code.

How much does NOx OFF cost?

The price depends on the vehicle, control unit and access method. After checking your vehicle details, we provide a specific quote.

Can the vehicle be used on public roads afterward?

Deactivating emissions-related systems is generally not permitted on public roads. This service is intended for lawful export, motorsport, dynamometer and non-public-road applications; responsibility for actual use rests with the customer.

INQUIRE NOW

Ready for your vehicle project?

A personalized quote from CT Performance in Bammental.