B1578 on Chrysler vehicles
B1578 is named on 8 Chrysler model years (2022–2025): 12 manufacturer filings and 0 owner reports in NHTSA’s files, across Pacifica, Voyager.
Which Chrysler model years name B1578
Source: NHTSA manufacturer communications and complaints| Model year | Filed under | Bulletins | Owner reports |
|---|---|---|---|
| 2025 Chrysler Pacifica | Electrical System | 2 | — |
| 2024 Chrysler Pacifica | Electrical System | 2 | — |
| 2023 Chrysler Pacifica | Electrical System | 2 | — |
| 2022 Chrysler Pacifica | Electrical System | 2 | — |
| 2025 Chrysler Voyager | Electrical System | 1 | — |
| 2024 Chrysler Voyager | Electrical System | 1 | — |
| 2023 Chrysler Voyager | Electrical System | 1 | — |
| 2022 Chrysler Voyager | Electrical System | 1 | — |
A model year is listed because the code is named in its own record — a bulletin filed against it, or an owner’s complaint about it — not because every one of these vehicles sets it. Counts are documents in NHTSA’s files, not failure rates.
Chrysler filings that name B1578
Source: NHTSA manufacturer communicationsBulletins and campaigns Chrysler filed with NHTSA whose summary names B1578. Quote the document number at the service desk — it is a diagnosis the maker has already written down.
- 9100745 Service bulletin2025-12-15 · Electrical System
- B1578 DTC active (Audio Antenna Circuit Resistance Below Threshold) in LB production vehicles. Do not diagnose stored or active DTC unless there is a customer facing issue noted. A SOL will be released to give further information.
What B1578 means
Source: SAE J2012 / OBD-IIB1578 is a manufacturer-specific code: the second character is a 1, which under the OBD-II standard hands the definition to whoever built the vehicle. The same code can mean one thing on a Ford and something unrelated on a Hyundai. Any site that prints a single definition for it is guessing.
A stored code names the test that failed, never the part that caused it. The record above is what Chrysler and its owners have filed about it; the code’s page across every make has the whole file.
Common questions
Source: NHTSA files and the OBD-II standardIs B1578 a known problem on Chrysler vehicles?
It is a documented one: NHTSA's files hold 12 manufacturer filings and 0 owner reports naming B1578 on 8 Chrysler model years (2022–2025). Whether it is a problem on one particular car is a diagnosis, not a count — but a bulletin that names the code on your model year is the place to start.
Which Chrysler models does B1578 appear on most?
2025 Pacifica (2 documents), 2024 Pacifica (2 documents), 2023 Pacifica (2 documents).
Does B1578 on a Chrysler mean it is recalled?
No. Recalls are filed by campaign and matched by VIN; no recall is triggered by a scan tool. Check the VIN at nhtsa.gov/recalls, or open the model year's page here for the campaigns filed against it.