Hyundai transmission speed-sensor faults: preserve source ambiguities. See the manufacturer document, vehicle conditions, exclusions and questions for a qualified shop before assuming a repair.
This is a research summary of a manufacturer communication, not a diagnosis for your car, a DIY repair procedure or confirmation of warranty or recall eligibility. No qualified technician has approved a repair for your individual vehicle here.
This historical communication is conditional. The current revision, VIN/build eligibility, measured diagnosis and any warranty or recall decision are not established here. Ask the manufacturer or a qualified shop to check the complete current document.
Read the Hyundai original: Automatic-transmission input/output speed sensor DTC guidance · Check open recalls by VIN at NHTSA Source date: 2019-08; research checked: 2026-11-01.
What prompted this manufacturer document
- The source describes an input/output transmission-speed-sensor and harness diagnostic path.
- Conflicting code wording prevents treating its P0717 label as a clean generic definition.
Which vehicle conditions must be checked
Each row below retains its own conditions. Do not combine engines, years or models across rows to create new applications. A listed model is not proof that a particular VIN is affected.
- Hyundai Sonata · year not established · 2.0T; Automatic
- Hyundai Santa Fe · year not established · 2.0T / 2.4L; Automatic
- Hyundai Palisade · year not established · 3.8L; Automatic
- Confirm the actual model year and transmission rather than extrapolating the source tilde ranges.
- Do not add P0712 as a supported application solely from the inconsistent page header.
Codes recorded in this document
A root listed only as an appearance has no separately verified meaning here. Preserve every suffix and module name; a shared root does not transfer a repair branch to another vehicle.
| Root | Raw form | Meaning in this source, if established |
|---|---|---|
| P0717 | P071700 | Appears in the document; individual meaning not verified |
| P0721 | P072100 | Appears in the document; individual meaning not verified |
| P0722 | P072200 | Appears in the document; individual meaning not verified |
What an owner can record safely
- Save the complete code, including its trailing digits, and note shifting symptoms.
What the source does not prove
- Do not order from partially masked part numbers or equate P072200 with a new code separate from P0722.
- A code or message alone does not establish a failed part, a safe-to-drive decision or an approved repair for this VIN.
- A service bulletin is not automatically a recall or free warranty repair. Confirm current eligibility directly.
Questions for the repair shop
- Can the technician verify the code text in current Hyundai SI and identify the correct transmission?
- Does a later revision or a current recall change the source's original advice?
- What measurement or inspection confirms the cause, and how will the repair be verified?
Open source-review issue
- Q2-002: Hyundai 19-AT-018H uses conflicting P071700 and P071200 references. This summary does not assign P0712 to a vehicle or resolve the discrepancy.
- Q2-010: A Hyundai number with an asterisk is a conditional source notation, not a confirmed orderable part number.
The uncertain field is not used here to claim a current fitment, repair or market-wide failure.
Read the original record
The linked communication may be revised after the research date. Compare its document number, exact vehicle table, diagnostic preconditions and exclusions with a qualified technician. This page paraphrases selected facts and does not reproduce the manufacturer procedure.
Sources and scope
- Hyundai — Automatic-transmission input/output speed sensor DTC guidance (19-AT-018H) Document: 2019-08 · Research checked: 2026-11-01
Research snapshot: 2026-11-01. Source documents may have newer revisions. Verify current instructions and VIN eligibility with the manufacturer.