BMW 535i M5 1987 – 1988 Electrical Troubleshooting

BMW 535iBMW M5

This comprehensive Electrical Troubleshooting Manual provides detailed guidance for diagnosing and repairing electrical faults in 1987 – 1988 BMW 535i M5 models.

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 – 1988 BMW 535i M5, 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: 60 Ah
Alternator output: 90 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 60 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 535i M5 1987 – 1988 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.

* 1987 Vehicles Built Before 9/86 Use 1986 535i Electrical Troubleshooting Manual For Diagnostics.

INDEX

How to use this manual
Symbols
Systematic Troubleshooting
Power Distribution
Charging
Start
Injection Electronics
Injection Electronics
Electronic Transmission Control
Brake Lining Warning
Antilock Braking System (ABS)
Self Leveling Suspension
Power Mirrors
Central Locking
Power Windows
Power Seats
Sunroof
Sunroof
Body Electrical
Ignition Key Warning/Seatbelt Warning
Wiper/Washer
Instrument Cluster
Active Check Control
Light Switch Details
Headlights/ Fog Lights
Turn/ Hazard Lights
Front Park/ Front Marker/ Tail Lights
Rear Marker/ License/ Trunk Lights
Back Up Light
Stop Lights
Interior Lights
A/ C Temperature Control
A/ C Blower Controls
Auxiliary Fan
Radio/ Power Antenna
Cruise Control
On- Board Computer
Component Location Views
Splice Location Views
Connector Views
Component Location Chart

Language: English
Format: PDF
Pages: 175

BMW 535i M5 1987 – 1988 Electrical Troubleshooting