Drawing-Based Automotive Projects

Custom Automotive Wire Harnesses

for OEM Projects

For automotive OEM, supplier and vehicle-electronics projects: share your drawing, BOM, connector references and requested quantity to discuss a custom harness or cable assembly. Define the application and acceptance requirements before quotation.

Automotive Supplier Qualification

Define Your Automotive Harness Requirements

Automotive wire harness sourcing requires
clear specifications,
controlled manufacturing
and documented communication.

Share the application, drawing revision, BOM and requested quantity so the project requirements can be reviewed. Include any supplier qualification, documentation and acceptance requirements in your inquiry.


Supplier Qualification Documents

Specify the certificate scope, inspection records and other documents required for your supplier review. Availability must be confirmed for the project.


Drawing & BOM Review

Requirements are reviewed before manufacturing.


Custom Manufacturing

Built to customer-approved drawings and specifications.


Project Communication

Engineering and production questions are coordinated by project.

Automotive wire harness quality inspection and manufacturing

Custom Manufacturing Scope

Automotive Harness & Cable Assembly Options

Browse all assembly types · Review prototype and low-volume project requirements

Choose the connection type closest to your application. All assemblies are reviewed against customer-approved drawings, specified wire and connectors, and agreed inspection requirements.

EV high voltage wire harness assembly

High-Voltage Automotive Harnesses

Review customer-specified high-voltage cable and connector requirements for vehicle power connections. Voltage, shielding and inspection criteria must be defined for the project.

Explore High-Voltage Automotive Harnesses
Automotive cable assembly preparation

Battery Cable Assemblies

Define battery connection lengths, terminal or connector references, polarity identification and protection requirements before quotation.

Explore Battery Cable Assemblies
Automotive wire harness drawing based build

Automotive Test Cable Assemblies

Document the test-equipment interfaces, pin assignments, cable lengths and required checks for a custom automotive testing cable.

Explore Automotive Test Cable Assemblies

Engineering Explainer

From Drawing Review to Automotive Wire Harness Production

See how a custom automotive wire harness moves from engineering requirements to controlled production and final verification.

  • Drawing and BOM review
  • Wire cutting, stripping and preparation
  • Controlled terminal crimping
  • Harness routing and assembly
  • Visual inspection and electrical testing

AI-assisted technical visualization for educational purposes. Actual manufacturing methods and acceptance criteria depend on the approved drawing, materials and customer requirements.

Manufacturing Process

Production Stages and Project-Defined Checks

The workflow begins with drawing and BOM review,
then moves through wire preparation, assembly
and project-defined inspection.

Automotive wire cutting and preparation

01

Wire Processing

Wire cutting,
stripping and preparation
according to approved project requirements.

  • Drawing-based dimensions
  • Wire preparation requirements
  • Material identification

Automotive terminal crimping process

02

Terminal Crimping

Terminal crimping is performed
to defined project requirements
for consistent assembly.

  • Terminal and wire compatibility
  • Project work instructions
  • Production records where applicable

Automotive wire harness routing and assembly

03

Harness Assembly

Harness routing and assembly
follow customer-approved drawings
and project specifications.

  • Branch routing
  • Sleeving and protection
  • Connector assembly

Automotive wire harness inspection and electrical testing

04

Inspection & Testing

Inspection and verification scope
is defined according to product
and customer requirements.

  • Visual inspection
  • Continuity testing where applicable
  • Customer-specified checks

EV high voltage wire harness manufacturing process

Custom Automotive Manufacturing

Support for Complex, Low-Volume Automotive Harness Projects

Cablum supports project review
from initial drawings and samples
through prototype or low-volume
custom manufacturing.

Prototype & Sample Support

Engineering communication
for project review.

Low-Volume Production

Controlled manufacturing
for approved requirements.

Project Quality Requirements

Quality Requirements for Your Automotive Wire Harness Project

A quality management framework for reviewing requirements,
managing production and supporting customer communication.

Drawing & BOM Review

Customer drawings, BOMs
and project requirements
are reviewed before production.

Controlled Manufacturing

Manufacturing requirements are coordinated
with approved project information.

Records by Requirement

Production and inspection records
may be maintained according to project requirements.

Project Review

What to Include in Your Automotive Wire Harness Inquiry

Providing clear project information helps our engineering team review feasibility, materials, production requirements and quotation details efficiently.

  • Drawings, BOMs or reference samples
  • Application, operating environment and electrical requirements
  • Current order quantity, project stage and requested timing
  • Wire and connector part numbers, pinout, drawing revision and finished dimensions
  • Inspection, testing, acceptance limits and documentation requirements
Start Your Automotive RFQ
Automotive wire harness project review and manufacturing preparation

Automotive Wire Harness RFQ FAQ

Include any required supplier qualifications, document formats and acceptance criteria in your RFQ. Request current certificate copies and scope information for your supplier review.

Provide the drawing revision, BOM, pinout, wire and connector references, finished lengths, application, requested quantity and timing. Include any inspection, testing and documentation requirements.


State the inspection items, acceptance limits, sampling or coverage requirements, and any records you need. The applicable methods and documentation must be confirmed for the project before production.


Describe whether the project is a prototype, sample build or low-volume order. Include the requested quantities and timing so project fit can be reviewed.


Use the RFQ form for PDF, DOCX, XLSX, JPG, JPEG or PNG files: up to 5 files, 20 MB per file. For STEP, IGES or other CAD files, contact jennyxcy@cablum.com to arrange file transfer.

Open the RFQ form

Request an Automotive Wire Harness Manufacturing Review

Send your automotive wire harness drawing,
BOM, sample or project requirements.

Our team will review the application,
quantity and quality requirements
and identify any questions requiring clarification.