B2190 Fault Code – Vehicle fault code with verified manufacturer evidence

Car Codes diagnostic trouble code

B2190Diagnostic priority

SERVICE INFORMATION DTC B2190 (NATS ANTENNA AMP) can be stored for the following reasons: 1. Something other than an Intelligent Key is inserted into the Key-Slot. 2. An Intelligent Key issue. 3. A wiring issue between the Key-Slot and the BCM. 4. A Key-Slot issue. If DTC B2190 is store…

Code interpretation

What B2190 means

This code indicates Vehicle fault code with verified manufacturer evidence Its precise meaning depends on the reporting control module, complete failure-type suffix, model year, powertrain and software level.

Driver experience

Symptoms you may notice

A stored diagnostic trouble code or a related system warning.

Test, do not guess

Possible causes

The precise cause depends on the reporting module, vehicle specification, circuit condition and software level.

Evidence-led checks

Recommended diagnostic route

Save the complete scan and confirm the code against model-specific technical information before testing.

Capture the evidenceSave the complete all-module scan, code suffixes and freeze-frame data.
Prove the basicsTest battery condition, system voltage, power and grounds.
Identify the reporterConfirm the module that logged the code and check circuit integrity.
Compare live dataReview commanded and actual values under the conditions that set the code.
Test before replacingUse model-specific wiring diagrams, pin tests and technical information.
Verify the repairClear the code only after recording evidence, then confirm it does not return.

Vehicle fitment

Vehicle applicability

Nissan Juke, Nissan Leaf

Before clearing

Can the code be cleared?

Clearing a code without fixing the cause removes useful evidence and may only switch the warning off temporarily. Save the full scan first; a permanent or repeatedly returning code needs testing.

A DTC is evidence, not a parts order.

Confirm the suffix, reporting module, model, year, engine and live data before replacing a component.

Verified public evidence

Manufacturer and model coverage

10 public manufacturer records match this search. These records support applicability research but do not replace VIN-specific workshop information.

B2190Nissan Juke
JUKE · 2011 · Multiple/unspecified