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 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.

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
Battery Cable Assemblies
Define battery connection lengths, terminal or connector references, polarity identification and protection requirements before quotation.
Explore Battery Cable Assemblies
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
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.
01
Wire Processing
Wire cutting,
stripping and preparation
according to approved project requirements.
- Drawing-based dimensions
- Wire preparation requirements
- Material identification
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
03
Harness Assembly
Harness routing and assembly
follow customer-approved drawings
and project specifications.
- Branch routing
- Sleeving and protection
- Connector assembly
04
Inspection & Testing
Inspection and verification scope
is defined according to product
and customer requirements.
- Visual inspection
- Continuity testing where applicable
- Customer-specified checks

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.
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
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.