Nissan U1009
96 (Quick charger comm [Quick charger communication]) may be stored. - This issue applies to vehicles equipped with a 40 kWh lithium-ion ba
Quick answer
For certain 2018–2019 Nissan LEAF vehicles in the US equipped with a 40 kWh lithium-ion battery, DTC U1009-96 may be stored in connection with quick-charge communication. Nissan bulletin NTB19-056 addresses reports of charging stopping during quick charging after many back-to-back quick charges, or quick charging taking too long.
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 U1009 mean?
For certain 2018–2019 Nissan LEAF vehicles in the US equipped with a 40 kWh lithium-ion battery, DTC U1009-96 may be stored in connection with quick-charge communication. Nissan bulletin NTB19-056 addresses reports of charging stopping during quick charging after many back-to-back quick charges, or quick charging taking too long.
2. Technical explanation
Verified evidence identifies U1009-96 as “Quick charger comm [Quick charger communication].” The supplied official Nissan/NHTSA bulletin evidence associates this code with quick-charge behavior, specifically charging that stops after many back-to-back quick charges or takes too long with a quick-charge setting. The evidence does not establish a component-level fault cause or a specific repair procedure.
3. What system is affected?
Quick-charge communication; applicability is limited by the supplied evidence to 2018–2019 Nissan LEAF vehicles in the US with a 40 kWh lithium-ion battery.
4. How serious is this code?
Not yet established by verified evidence.
5. Symptoms you may notice
- Quick charging may stop after many back-to-back quick charges.
- Quick charging may take too long with a quick-charge setting.
- DTC U1009-96 may be stored.
6. Possible causes
- Not yet established by verified evidence.
7. Can I still drive the vehicle?
Not yet established by verified evidence.
8. Can I charge the vehicle?
The verified evidence concerns quick-charge operation. Whether the vehicle can be charged safely, including by other charging methods, is not yet established by verified evidence.
9. What you can safely do
- If quick charging stops or takes too long, arrange evaluation by a Nissan dealer or qualified service facility.
- Do not attempt high-voltage battery or quick-charge system repairs yourself.
10. Step-by-step troubleshooting
- Confirm whether the vehicle is a US-market 2018–2019 Nissan LEAF equipped with a 40 kWh lithium-ion battery.
- Record whether the issue occurs after many back-to-back quick charges or involves unusually long quick-charge time.
- Have a service facility check for stored DTC U1009-96 and review Nissan bulletin NTB19-056.
11. When to contact service
Contact a Nissan dealer or qualified service facility for diagnosis, particularly if quick charging repeatedly stops or takes too long.
12. What the service center may check
- Check whether DTC U1009-96 is stored.
- Confirm vehicle applicability: 2018–2019 Nissan LEAF, US market, 40 kWh lithium-ion battery.
- Review Nissan technical bulletin NTB19-056 in relation to the reported quick-charge concern.
13. Possible repair or resolution
- Not yet established by verified evidence.
14. Affected vehicles
- Nissan Leaf · 2018–2019 · US
15. Related TSBs / service bulletins
- Nissan NTB19-056, published through NHTSA as Manufacturer Communication 10163708 on 2019-07-18. The supplied evidence states that U1009-96 may be stored when quick charging stops after many back-to-back quick charges or takes too long, and limits applicability to vehicles equipped with a 40 kWh lithium-ion battery.
16. Recall information
- No recall information was supplied in the verified evidence.
17. Official manufacturer information
Official source: NHTSA Manufacturer Communication 10163708, Nissan NTB19-056: https://static.nhtsa.gov/odi/ffdd/tsbs/TSBS_RECEIVED_2015-2019.zip#nhtsa_id=10163708
- NHTSA: NHTSA Manufacturer Communication 10163708: NTB19-056 · official_tsb
19. Frequently asked questions
What does U1009-96 mean on an applicable Nissan LEAF?
The verified evidence describes U1009-96 as “Quick charger comm [Quick charger communication].”
Which vehicles are supported by the supplied evidence?
US-market 2018–2019 Nissan LEAF vehicles equipped with a 40 kWh lithium-ion battery.
What charging concerns are associated with this code?
The supplied Nissan bulletin evidence describes quick charging stopping after many back-to-back quick charges or taking too long with a quick-charge setting.
Does the evidence identify the failed part or repair?
No. A component-level cause and repair resolution are not yet established by verified evidence.