The exact transmission controller detected an incorrect ratio condition.
CASE 08TransmissionAdvanced9 minutes
Commanded versus actual shift
2018 performance sedan · Flare during one upshift
Simulated evidenceNo vehicle commandsEvery decision explained
THE FAILURE SCENE
Enhanced transmission data is available from an exact licensed profile. Road testing is logged by a passenger or fixed equipment.
The controller requested the shift.
The measured ratio did not follow command during the event.
The event is temperature-dependent and needs exact specification context.
DECISION 1 / 3
What is proven?
The trace repeats twice at the same fluid-temperature range.
AUTHORSHIP · SOURCES · CORRECTIONS
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These links are primary-source starting points for the page's scope. They do not replace the current manufacturer procedure, wiring, specification, or service information for a specific vehicle.
Publisher
ScanWrench Editorial is the working byline for this library. Joshua Black, founder and publisher, is responsible for publication decisions, disclosures, and corrections.
A reviewed date means an editorial scope and safety check. It is not an ASE credential, OEM authorization, or vehicle-specific repair approval.
Primary sources
- SAE J2012 — Diagnostic Trouble Code DefinitionsSAE International · Standardized DTC structure, definitions, and manufacturer-controlled ranges.
- SAE on-board diagnostics standards indexSAE International · Primary standards family for regulated OBD services, identifiers, and transport context.
- NHTSA datasets and APIsNational Highway Traffic Safety Administration · Primary U.S. recall, complaint, investigation, rating, and manufacturer-communication data.
Revision history
- Simulation review: claim boundaries, safety language, internal links, and cited source scope checked.
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