P1A15 on Audi
Charging Unit 2 - Function Restriction
P1A15 on Audi vehicles indicates charging unit 2 - function restriction. Au7o has documented this code across 1 Audi model — most commonly on e-tron. The high-voltage battery charger control module J1050 reports that the second charging unit (the second onboard charger channel, fitted on vehicles with dual AC charging capability) is operating with restricted function. Charging can continue at reduced power or may be interrupted. Audi TSBs 2061788 and 2062631 list P1A1500 among the charger codes on 2020-2021 e-tron quattro and e-tron Sportback attributable to onboard-charger software level 0070.
Common Causes of P1A15
- •Outdated onboard-charger software (level 0070) - Audi's documented production solution is updated OBC software (TSB 2061788, SVM code C6A008)
- •Thermal derating of the second charger channel
- •Internal fault in the second charging unit
- •Supply-side voltage or phase problem on the AC feed
P1A15 on Audi by Model
Audi e-tron(1 issue)
- 2021 e-tron Charging Interruptions with Onboard-Charger Software 0070 - Diagnosis Required2021
Audi TSB 2061788/2 covers model-year 2021 e-tron quattro and e-tron Sportback vehicles with specified AC/DC charging interruptions, charging-flap operation problems, or an app request for auxiliary heating that does not pre-heat the vehicle when matching DTCs are stored in high-voltage battery charger control module J1050. Audi attributes the documented condition to onboard-charger software and identifies old software level 0070, not a proven failed charger module.
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View P1A15 across all makes →Frequently Asked Questions
What does P1A15 mean on Audi?▼
P1A15 stands for "Charging Unit 2 - Function Restriction." The high-voltage battery charger control module J1050 reports that the second charging unit (the second onboard charger channel, fitted on vehicles with dual AC charging capability) is operating with restricted function. Charging can continue at reduced power or may be interrupted. Audi TSBs 2061788 and 2062631 list P1A1500 among the charger codes on 2020-2021 e-tron quattro and e-tron Sportback attributable to onboard-charger software level 0070. On Audi specifically, this code is documented across 1 model.
What causes P1A15 on Audi vehicles?▼
Common causes on Audi: Outdated onboard-charger software (level 0070) - Audi's documented production solution is updated OBC software (TSB 2061788, SVM code C6A008), Thermal derating of the second charger channel, Internal fault in the second charging unit, Supply-side voltage or phase problem on the AC feed. Specific causes vary by model and year — see the per-model sections below.
How much does it cost to fix P1A15 on a Audi?▼
Repair costs vary widely depending on the root cause and specific Audi model.
Which Audi models have P1A15 documented?▼
Au7o has documented P1A15 on 1 Audi model: e-tron.