Source-backed diagnostic reference

P173400 Code: Meaning & Diagnostic Guide

An OEM diagnostic-code list defines P173400 as “Starter release from the selector lever sensor system.” This describes the system/function named by the code; the source does not establish a particular vehicle, model year, or powertrain application. I found no explicit evidence tying this exact code to a 2021+ Audi BEV or PHEV.

Reference status: This page preserves source-backed code definitions for discovery. Manufacturer/model applicability, repair steps and safety conclusions are not treated as verified unless a manufacturer-specific verified report is available.

What does P173400 mean?

  • GENERIC: An OEM diagnostic-code list defines P173400 as “Starter release from the selector lever sensor system.” This describes the system/function named by the code; the source does not establish a particular vehicle, model year, or powertrain application. I found no explicit evidence tying this exact code to a 2021+ Audi BEV or PHEV. Source

Is P173400 generic or manufacturer-specific?

P173400 has a generic source-backed definition in this database. The exact vehicle make, model, year and powertrain should be confirmed before using a definition for diagnosis.

P173400 symptoms

A diagnostic code identifies a detected condition; it does not by itself prove which component has failed. Symptoms can differ between vehicles. Record the exact warning message, any additional codes, and the operating condition when P173400 appeared.

Possible causes of P173400

Possible causes depend on the vehicle-specific definition and test results. Do not conclude that a named component has failed from P173400 alone; wiring, connections, control conditions and component tests should be evaluated using manufacturer procedures.

How to diagnose P173400

  1. Confirm the exact P173400 reading with a compatible scan tool and record any accompanying codes.
  2. Confirm the vehicle make, model, model year and powertrain before applying a reference definition.
  3. Prefer a verified manufacturer-specific report when one is available.
  4. Follow the manufacturer diagnostic procedure before replacing parts.

How to fix P173400

There is no safe universal parts-replacement fix for P173400 without vehicle-specific evidence. The correct resolution depends on the confirmed definition and diagnostic test results.

Can I drive with P173400?

A universal drive/no-drive answer cannot be inferred from P173400 alone. Follow the vehicle warning and manufacturer instructions.

P173400 frequently asked questions

What does P173400 mean?

An OEM diagnostic-code list defines P173400 as “Starter release from the selector lever sensor system.” This describes the system/function named by the code; the source does not establish a particular vehicle, model year, or powertrain application. I found no explicit evidence tying this exact code to a 2021+ Audi BEV or PHEV.

Can different manufacturers use P173400 differently?

Yes. Generic definitions and manufacturer-labelled definitions can coexist, so vehicle context matters.

Should I replace a part immediately?

No. A code is a diagnostic starting point, not proof that a named component has failed.

Search variants and canonical URL

Capitalization, underscores, hyphens, colons and spaces are normalized to this canonical code identity so alternate scan-tool formats do not create duplicate pages.