: Diagrams that identify the physical arrangement of inscriptions and various internal components within a vehicle.

: Provides fault codes (DTCs), test plans, and reference values to assist in troubleshooting electrical and mechanical issues.

: Includes labor times and operation references to help calculate repair costs and manage customer expectations.

: Checklists and service light reset procedures for cars, light commercial vehicles (LCVs), and lorries. Software Features for Mechanics

Tolerance Data 2020 (often appearing in professional contexts as the 2009.2 version updated for modern systems) is a comprehensive automotive diagnostic and repair software known for its high-quality technical diagrams. It functions as a multi-brand "knowledge bank" similar to Autodata . Key Technical Diagrams and Data Modules

: Detailed electrical schematics for engine management, ABS, and airbag systems. These diagrams typically include color-coded wire paths, pin data, and fuse/relay assignments to simplify circuit tracing.

: Visual guides for mechanical repairs, including timing belt/chain routing , tightening sequences, and torque settings.

: Includes data for European, Japanese, Korean, and English vehicles from the 1970s up to the latest supported models (2009/2020 depending on version).