BMW 735i E32 1987 Electrical Troubleshooting Manual

This comprehensive Electrical Troubleshooting Manual provides detailed guidance for diagnosing and repairing electrical faults in the 1987 BMW 735i E32 model.

Key Features and Benefits:

Step-by-step troubleshooting procedures guide you through the diagnostic process, identifying potential causes and solutions.
Detailed electrical schematics and diagrams visually represent the electrical systems, aiding in component identification and circuit tracing.
Important specifications and measurements ensure accurate and efficient repairs.
Tailored specifically for the 1987 BMW 735i E32, catering to its unique electrical system configuration.
Empowers users to perform electrical repairs themselves, saving time and money while gaining a deeper understanding of their vehicle.
Technical Specifications and Details:

Electrical System:

12-volt negative ground system
Battery capacity: 80 Ah
Alternator output: 120 amps
Major Electrical Components:

Engine control module (ECM)
Ignition coil
Starter motor
Voltage regulator
Headlight switch
Turn signal switch
Wiper switch
Maintenance and Repair Information:

Battery Replacement:

Recommended battery: BMW-approved 12-volt battery with 80 Ah capacity
Battery location: Under the hood, on the passenger side

Fuse and Relay Replacement:

Fuse and relay panel locations:
Under the hood, next to the battery
Inside the cabin, under the dashboard
Fuse and relay identification: Refer to the electrical troubleshooting manual for specific locations and ratings

Electrical Troubleshooting:

Use a multimeter to measure voltage, current, and resistance
Inspect wiring harness for damage or loose connections
Consult the electrical troubleshooting manual for circuit testing procedures
Common Electrical Problems and Solutions:

Battery Drain:

Symptoms: Difficulty starting the vehicle, dim headlights
Solution: Check for parasitic drains using a multimeter, inspect battery terminals for corrosion

Electrical Shorts:

Symptoms: Blown fuses, intermittent electrical failures
Solution: Inspect wiring harness for damage, repair or replace damaged wires

Ground Faults:

Symptoms: Electrical components not functioning properly
Solution: Check ground connections for tightness and corrosion, clean or repair as needed
This comprehensive BMW 735i E32 1987 Electrical Troubleshooting Manual is an indispensable resource for owners and technicians alike. Its detailed troubleshooting procedures, electrical schematics, and technical specifications empower you to diagnose and repair electrical faults with confidence and precision.

CONTENTS

Introduction
Systematic Troubleshooting
Symbols
Power Distribution Charts
Fuse Charts
Power Distribution
Fuse Details
Ground Distribution
Diagnostic Link
E-Box Fan
Charging System
Start
Injection Electronics (DME)
Electronic Transmission Control (AEGS)
Supplemental Restraint System (Air Bag)
Power Assist Steering (Servotronic)
Brake Lining Warning
Antilock Brake System (ABS)
Brake Lining Warning
Antilock Brake System (ABS)
Memory Mirrors
Door Lock Heating (ZKE)
Central Locking System (ZKE)
Power Windows (ZKE)
Power Seats
Memory Seat
Sunroof (ZKE)
Central Body Electronics (ZKE)
Horn
Windshield Wipers (ZKE)
Windshield Washer (ZKE)
Windshield Wiper Pressure Control (ZKE)
Windshield Washer Jet Heaters
Instrument Cluster/ Check Control
Instrument Cluster/ Check Control
Light Switch Details
Lamp Monitor (LKM)
Turn/ Hazard Lights
Headlights/ Fog Lights
Park/ Tail/ Marker/ Underhood Lights
License/ Trunk Lights
Back Up Lights
Brake Lights
Interior Lights (ZKE)
Glove Box Light/ Cigar Lighter/ Ashtray Light/ Flashlight Charging Plug
Rear Window Defogger
Automatic Climate Control (IHKA)
Auxiliary Fan
Radio
Cruise Control (Tempomat)
Antitheft System (DWA)
On- Board Computer
Component Location Chart
Component Location Views
Splice Location Views
Connector Views

Language: English
Format: PDF


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