Audi U003600
) shorted to Bus A (+)). DTC U002800 (Vehicle Communication Bus A). DTC U002900 (Vehicle Communication Bus A Performance). DTC U140500 (Terminal 15 Implausible signal). DTC
Quick answer
For a 2020 Audi Q5 in the US, DTC U003600 is documented in an Audi/NHTSA manufacturer communication as “Vehicle Communication Bus A (-) shorted to Bus A (+).” It may occur with multiple warning lamps and, in some cases, a vehicle that cannot be driven.
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 U003600 mean?
For a 2020 Audi Q5 in the US, DTC U003600 is documented in an Audi/NHTSA manufacturer communication as “Vehicle Communication Bus A (-) shorted to Bus A (+).” It may occur with multiple warning lamps and, in some cases, a vehicle that cannot be driven.
2. Technical explanation
The supplied evidence identifies U003600 as a Vehicle Communication Bus A fault: “Bus A (-) shorted to Bus A (+).” Audi’s communication states that this code can be stored in various control modules along with faults related to the power electronics control module J841 (address word 0051). The supplied excerpt does not establish a single failed component or a specific repair.
3. What system is affected?
Vehicle Communication Bus A; the source also references power-electronics-related faults and control module J841 (address word 0051).
4. How serious is this code?
Unknown. The verified source reports that the vehicle may be unable to be driven in some cases.
5. Symptoms you may notice
- Various warning lamps may illuminate in the instrument cluster.
- The vehicle may be unable to be driven.
- U003600 may be stored with various DTCs related to power electronics, J841 (address word 0051).
6. Possible causes
- A short between Vehicle Communication Bus A (-) and Bus A (+) is identified by the DTC definition.
- A specific underlying component-level cause is not yet established by verified evidence.
7. Can I still drive the vehicle?
Not yet established by verified evidence for every occurrence. The verified source states that, in the documented condition, the vehicle can be unable to be driven.
8. Can I charge the vehicle?
Not yet established by verified evidence.
9. What you can safely do
- Arrange diagnosis by an Audi-qualified service facility, particularly if warning lamps are present or the vehicle cannot be driven.
- Do not attempt high-voltage or communication-network repairs yourself.
10. Step-by-step troubleshooting
- Have the vehicle scanned for all stored DTCs, including faults in modules associated with power electronics and J841 (address word 0051).
- Provide the technician with the NHTSA/Audi manufacturer communication reference MC-10191577-0001.
- Further diagnostic steps are not established by the supplied verified evidence.
11. When to contact service
Contact an Audi dealer or qualified Audi service facility for diagnosis, especially if multiple warning lamps illuminate or the vehicle cannot be driven.
12. What the service center may check
- Confirm U003600 and any accompanying DTCs stored in vehicle control modules.
- Assess the documented condition involving power-electronics-related DTCs and J841 (address word 0051).
- Specific test procedures are not yet established by verified evidence.
13. Possible repair or resolution
- A verified repair resolution is not provided in the supplied evidence.
14. Affected vehicles
- Audi Q5 · 2020 · US
15. Related TSBs / service bulletins
- NHTSA Manufacturer Communication PDF 10191577: A9421372063075_1, published April 30, 2021. It documents the condition for certain Audi Q5 PHEV vehicles and lists U003600 among example DTCs.
16. Recall information
- No recall is established by the supplied verified evidence.
17. Official manufacturer information
Official source: NHTSA manufacturer communication MC-10191577-0001, Audi document A9421372063075_1: https://static.nhtsa.gov/odi/tsbs/2021/MC-10191577-0001.pdf
19. Frequently asked questions
What does Audi DTC U003600 mean?
The supplied official manufacturer communication defines it as “Vehicle Communication Bus A (-) shorted to Bus A (+).”
Which vehicles are supported by the supplied evidence?
The applicability record identifies a US-market 2020 Audi Q5. The source excerpt also references Q5 PHEV vehicles, but complete applicability details are not established by the supplied evidence.
Can U003600 prevent the vehicle from driving?
It can be associated with a no-drive condition. The verified source states that, for the documented condition, the vehicle can be unable to be driven.
Is charging safe with U003600?
Not yet established by verified evidence.