Land Rover U019B
87 stored in Powertrain Control Module (PCM) · U0064-87 stored in the Battery Energy Control Module (BECM) Cause: Software or electrical wiring continuity. Action: The below steps
Quick answer
For certain 2019–2023 US Land Rover Range Rover vehicles, U019B-87 in the PCM may be found together with U0064-87 in the BECM when the high-voltage battery will not charge. Land Rover’s cited service communication identifies software or electrical wiring continuity as the cause category and directs technicians to complete TOPIx diagnostic guidance before replacing the high-voltage junction box (HVJB).
This page separates verified manufacturer/regulator evidence from supporting material. Unsupported causes, repairs or safety conclusions are not guessed.
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1. What does U019B mean?
For certain 2019–2023 US Land Rover Range Rover vehicles, U019B-87 in the PCM may be found together with U0064-87 in the BECM when the high-voltage battery will not charge. Land Rover’s cited service communication identifies software or electrical wiring continuity as the cause category and directs technicians to complete TOPIx diagnostic guidance before replacing the high-voltage junction box (HVJB).
2. Technical explanation
Verified evidence links this condition to DTC U019B-87 stored in the Powertrain Control Module (PCM) and U0064-87 stored in the Battery Energy Control Module (BECM). The manufacturer communication states that incorrect diagnosis has led to higher-than-expected HVJB warranty costs. It identifies software or electrical wiring continuity as the cause category and requires completion of relevant TOPIx Workshop Manual Diagnosis and Testing/Helptext guidance before HVJB renewal.
3. What system is affected?
High-voltage charging system, including communication between the PCM and BECM; the official communication also addresses diagnosis before replacement of the High Voltage Junction Box (HVJB).
4. How serious is this code?
Not yet established by verified evidence.
5. Symptoms you may notice
- The high-voltage battery may not charge when the charging cable is connected to the vehicle.
- U019B-87 may be stored in the PCM.
- U0064-87 may be stored in the BECM.
6. Possible causes
- Software.
- Electrical wiring continuity.
7. Can I still drive the vehicle?
Not yet established by verified evidence.
8. Can I charge the vehicle?
The verified communication reports that the high-voltage battery may not charge when the charging cable is connected. Whether charging is possible for an individual vehicle is not yet established by verified evidence.
9. What you can safely do
- Arrange diagnosis by a Land Rover-qualified service facility.
- Do not replace or attempt to repair high-voltage components based on this code alone.
- Provide the stored DTC information, including U019B-87 and U0064-87 if present, to the service facility.
10. Step-by-step troubleshooting
- A qualified technician should refer to the relevant TOPIx Workshop Manual Diagnosis and Testing and Helptext sections.
- The cited communication requires the specified diagnostic steps to be completed before renewing the HVJB.
- Diagnosis should address the manufacturer-identified software and electrical wiring-continuity cause categories.
11. When to contact service
Contact an authorized Land Rover service facility for diagnosis, particularly if the high-voltage battery will not charge or these DTCs are stored.
12. What the service center may check
- Retrieve and document DTC U019B-87 in the PCM and U0064-87 in the BECM, where present.
- Follow the applicable TOPIx Workshop Manual Diagnosis and Testing/Helptext guidance.
- Complete the required diagnostic process before considering HVJB renewal.
13. Possible repair or resolution
- Do not renew the HVJB until the required TOPIx diagnostic steps have been completed.
- The specific final repair for an individual vehicle is not yet established by verified evidence.
14. Affected vehicles
- Land Rover Range Rover · 2019–2023 · US
15. Related TSBs / service bulletins
- NHTSA Manufacturer Communication 10240274, Land Rover SSM76039, published July 17, 2023. It addresses incorrect HVJB diagnosis where U019B-87 is stored in the PCM and U0064-87 is stored in the BECM, and notes a possible no-charge condition.
16. Recall information
- Not yet established by verified evidence.
17. Official manufacturer information
Official source: NHTSA Manufacturer Communication PDF 10240274, Land Rover SSM76039: https://static.nhtsa.gov/odi/tsbs/2023/MC-10240274-0001.pdf
19. Frequently asked questions
What does U019B-87 indicate in this Land Rover guidance?
The verified communication lists U019B-87 as stored in the PCM in connection with U0064-87 stored in the BECM. It identifies software or electrical wiring continuity as the cause category.
Can this condition prevent charging?
Yes. The communication states that a customer may report that the high-voltage battery will not charge when the charging cable is connected.
Does this mean the HVJB must be replaced?
No. The communication says the required diagnostic steps must be completed before renewing the HVJB.
Which vehicles are covered by the supplied applicability evidence?
The supplied applicability evidence identifies US-market 2019–2023 Land Rover Range Rover vehicles.