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1989 FERRARI 328 US Wiring Diagram

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🏷️ Basic Information Identification Make: Ferrari Model: 328 GTB / 328 GTS Year: 1989 Market: USA (US specification) Chassis Codes: F106CB (GTB), F106CC (GTS) Production Location: Maranello, Italy Document Manual...
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Sku: 312891
1989 FERRARI 328 US Wiring Diagram
🏷️ Basic Information
Identification
Make:
Ferrari
Model:
328 GTB / 328 GTS
Year:
1989
Market:
USA (US specification)
Chassis Codes:
F106CB (GTB), F106CC (GTS)
Production Location:
Maranello, Italy
Document
Manual Type:
Wiring diagram and electrical troubleshooting manual
Language:
English
Format:
Digital PDF download
👋 Introduction
Purpose
Primary Focus:
Electrical system diagnosis and repair
Intended Users:
Owners, independent Ferrari specialists, automotive technicians
Why This Manual
Documentation Quality:
Based on original Ferrari schematics
Manual Advantage:
OEM-level electrical diagnostics for accurate, cost-effective repairs
Historical Note:
The 328 is a pivotal point in Ferrari's V8 evolution
📋 Manual Details
Format
File Format:
PDF
Delivery:
Instant digital download
Searchability:
Keyword search for components and circuits
Diagram Clarity:
High-resolution lines and legible text
Language:
English
Scope
Coverage:
Complete wiring diagrams for the US-spec 1989 Ferrari 328
Diagram Style:
Component-level diagrams with wire colors, terminal numbers and connector housings
Total Pages:
N/A - not specified for this edition
📖 Manual Coverage
Systems Covered
Engine Management:
Fuel injection and ignition wiring, ECU inputs/outputs, lambda sensor, airflow meter
Lighting:
Headlamps, taillights, indicators, brake, reverse and license plate lights, courtesy lights
Instrumentation:
Speedometer, tachometer, fuel, oil pressure, coolant temperature gauges and warning lights
HVAC:
Blower motor, A/C compressor clutch, temperature control module and switches
Power Accessories:
Power window motors, power door locks, wipers/washers
Starting and Charging:
Battery charging system and starter system circuits
Diagnostic Support
Fuse and Relay Data:
Fuse box locations, fuse ratings and relay functions
Procedures:
Harness tracing, connector identification, continuity and voltage drop testing
Component Testing:
Multimeter tests for relays, solenoids, switches and sensors
📊 Manual Specifications
File & Compatibility
File Format:
PDF (searchable, bookmarked, zoomable)
Compatibility:
Windows, macOS, Linux, iOS, and Android — any device with a PDF reader
Requirements:
A PDF reader application (e.g. Adobe Acrobat Reader, free)
Searchability:
Fully text searchable for fast lookup of any topic
Print & Binding
Print Quality:
High-resolution digital pages, printable at full clarity
Binding Type:
N/A — digital download, no physical binding
Paper Type:
N/A — digital download, no physical paper
⚙️ Engine Specifications
Engine
Engine Code:
F106CB.040
Type:
3.2-liter (3,186 cc) naturally aspirated V8
Horsepower:
270 hp @ 7,000 rpm (US spec)
Torque:
227 lb-ft (308 Nm) @ 5,500 rpm (US spec)
Fuel Delivery:
Bosch K-Jetronic CIS with LE2-Jetronic engine control
Ignition:
Electronic ignition with distributor
Wiring Relevance:
Injector, coil, ECU and sensor circuits fully diagrammed
🔧 Transmission
Drivetrain
Transmission:
5-speed manual transaxle
Drive Layout:
Mid-engine, rear-wheel drive
Alternative Gearboxes:
N/A - manual only for the 328
Related Circuits:
Reverse light wiring in the lighting diagrams
📐 Dimensions
Body and Weight
Body Styles:
Berlinetta coupe (GTB) and targa top (GTS)
Seating:
2 seats
Curb Weight:
Approx. 1,340 kg (GTB), 1,390 kg (GTS)
Full Dimensions:
N/A - not the focus of a wiring manual
🛡️ Safety Features
Hardware
Brakes:
Four-wheel hydraulic disc brakes
ABS:
Standard on US models
Restraints:
Three-point seatbelts
Airbags:
N/A - not fitted to this model
Electrical Safety Circuits
Warning Lights:
Oil pressure, brake system and engine check circuits
Exterior Lighting:
Brake lights, turn signals, hazards and reverse light wiring
💡 Technology Features
Comfort Electrics
Power Windows:
Wiring diagrams included
Power Door Locks:
Wiring diagrams included
Climate Control:
HVAC electrical diagrams included
Audio System:
Factory Clarion or Alpine cassette stereo wiring included
Modern Connectivity:
N/A - no Bluetooth or USB on this era
🔧 Maintenance
Electrical Maintenance
Battery and Charging:
Charging system wiring and testing covered
Known Quirks:
Brittle wire insulation and faulty fuel pump relays are common failures
Connector Care:
Connector identification and inspection guidance
Service Reference Data
Major Service:
About every 7,500 miles or 12 months, including timing belt
Engine Oil:
SAE 15W-50 or 20W-50 per original recommendation
Coolant:
50/50 ethylene glycol mix with distilled water
Brake Fluid:
DOT 4
Gearbox Oil:
GL-5 75W-90
📚 Vehicle History
Model Background
Production Years:
1985 - 1989
Predecessor:
Ferrari 308
Evolution:
Larger 3.2-liter V8 and more integrated bumpers than the 308
Successor:
Ferrari 348
This Edition:
1989 US-market cars
🏆 Awards & Recognition
Recognition
Awards:
N/A - no awards claimed for this document
Brand Legacy:
Ferrari heritage of performance and racing dating back to 1939
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