WORKSHOP DIAGNOSTIC CASE RECORD
Guide: https://yenra.com/automotive-diagnostics/
For qualified workshop use with applicable manufacturer procedures.
An organizational record, not a test procedure or authorization form.
Keep customer information and vehicle identifiers in controlled records.

Job / date / technician / reviewer:
VIN / model year / configuration / mileage / relevant modifications:
Customer's exact concern:
Conditions / frequency / onset / recent work / messages:
Initial authorized scope / contact point / approval record:

Reproduced? yes / no / partly. Conditions and actual observations:
Original scan file / tool and version / modules reached:
Codes with status / freeze frame / readiness / other retained evidence:
Unknowns and information needed:

Working explanation:
Alternative explanation:
Evidence that would reject the working explanation:
Manufacturer procedure / revision / applicability / required equipment:
Test to distinguish the explanations:
Actual measurements / units / operating conditions / equipment:
Applicable limits and their exact source:
Interpretation / supported action / unresolved uncertainty:

Additional authorization / scope / person / time / record reference:
Work performed / parts or software / procedure reference:
Verification method and conditions:
Original concern recurred? Observation period and limitations:
Final scan file / readiness state / outstanding issues:
Customer explanation and follow-up agreement:
Reviewer / date:
If the symptom was not reproduced, record that; do not claim it was fixed.