Saab 900 1989 – 1990 Service Manual

3:2 Electrical system, system diagrams, operation and fault tracing. This Service Manual deals with the electrical systems of the 1989 and 1990 models of the Saab 900. This Manual is a supplement to the Service Manual, Group 3:1, Electrical system, Instruments.

This Manual also deals with the Saab 900 Convertible, for which some of the functions are described separately. Other functions are the same as on the 2-door and 4-door models.

The purpose of this Manual is to facilitate fault tracing and service work on the electrical system of the car. So each electrical sub-system, such as the ignition system, hazard warning lights, etc., is described individually, and a separate wiring diagram is shown for each sub-system. Each such diagram is an extract from the comprehensive wiring diagram for the car.

A list of the electrical components of the car is included at the end of this Manual.
The comprehensive diagram for the entire electrical system of the car is presented in a separate book — Group 3:4.

This Manual is applicable to cars delivered to all markets. Note that certain cars delivered to the European market, for instance, may be equipped in accordance with the “USA specification”. This Manual should not be used for the Saab 90, Saab 99 and earlier models of the Saab 900, even though many of the electrical systems may be very similar.

CONTENTS

  • Introduction
  • Safety instructions
  • Wiring diagrams
  • Cable codes
  • Abbreviations
  • Using the wiring diagram
  • Using a universal instrument for fault-tracing
  • Connectors
  • Power supply
  • Positive supply
  • Electrical distribution box
  • Relays
  • Fuses
  • Extra electrical distribution box (Convertible) .
  • Ignition switch and positive supplies
  • Distribution terminal +30
  • Distribution terminal +X
  • Distribution terminal+15
  • Distribution terminal+54
  • Earth connections
  • Earthing point 3, fascia
  • Earthing point 7, radiator cross-member
  • Earthing point 9, luggage compartment
  • Earthing point 65, back seat and earthing point 300, brake unit (1990 model)
  • Earthing point 93, amplifier and earthing point 300, brake unit (1989 model)
  • Earthing point 117, between the ignition switch and the handbrake lever
  • Negative distribution terminal 158, in the electrical distribution box
  • Earthing point 201, engine
  • Engine electronics
  • Starting system
  • Fuel system, carburettor engine
  • Cl fuel system: 18 1990 model, 1989 model – ME, EE Cl: T8 1989 model – Fl, EU, GB .
  • Cl fuel system: 18 Lambda – SE, EU. 1990 model – Fl, GB
  • Cl fuel system: 1989 model T8 Lambda-EU …
  • LH 2.2fuefsystem: 116 —Fl, EU, GB, ME, FE … 64 LH
  • 2.2 fuel system: 1989 model T16 – Fl, EU, GB, ME, FE
  • LH 2.4 fuel system: T16 Lambda – US, CA, AU
  • 1989 moclel – SE-, EU, JP. 116 Lambda – US, CA, AU, JP, SE, EU
  • CU14 fuel system
  • Ignition system (with tachometer) C8,18,
  • 18 Lambda, T16, T16 Lambda 1989 model of T8, T8 Lambda
  • EZK ignition system (with tachometer), 1989 model
  • EZK ignition system (with tachometer), 1990 model
  • Battery-charging system
  • APC system
  • Lighting systems
  • Headlamps
  • Dim dipped beam – GB 1989 model
  • Daylight driving lights – CA
  • Extra fog lamps
  • Parking lights
  • Brake lights, 1980 model
  • Brake lights, 1990 model
  • Reversing lights
  • Rear fog lights, 1989 model
  • Rear fog lights, 1990 model
  • Direction indicators, hazard warning lights – SE, Fl, EU, GB, ME, FE, AU
  • Direction indicators, hazard warning lights — US, CAand 1989JP
  • Lighting for controls – SE, Fl, EU, GB, ME, FE, AU and 1990 JP
  • Lighting for controls – US, CA and 1989 for JP
  • Interior lighting
  • Interior lighting-Convertible
  • Glove compartment illumination
  • Luggage compartment illumination
  • Windscreen and headlamp wipers
  • Windscreen wipers
  • Headlamp wipers
  • Instruments and warning systems
  • Horn
  • Seat-belt warning lamp
  • Seat-belt and ignition key warning
  • Combined instrument
  • Coolant temperature warning buzzer
  • Cigarette lighter
  • Heating and ventilation systems
  • Cooling system fan, 1989 models
  • Cooling system fan, 1990 models
  • Ventilation fan
  • Air Conditioner (AC) with time-delay relay
  • Air Conditioner (AC) (CU14)
  • Electrically heated front seats
  • Electrically heated front seats with rheostat control for the driver’s seat
  • Electric heating for the rear window
  • Electric heating for the rear window, Convertible
  • Other systems
  • Electric window regulators
  • Electric window regulators, Convertible
  • Electrically operated rear-view mirrors
  • Electrically operated sunroof
  • Electrically operated Convertible top
  • Central locking
  • Central locking-Convertible
  • Cruise Control system …. *
  • Anti-lock brake system (ABS)
  • Power supply, hydraulic pressure and
  • monitoring functions
  • Passive seat belts, 1989 model
  • Airbag
  • Accessories
  • Headlamp beam adjustment
  • Radio installation
  • Radio installation— US, CA
  • Burglar alarm-US, CA and 1989 for JP
  • Burglar alarm, 1989 model Convertible
  • Burglar alarm, 1990 model Convertible
  • List of components
  • Component in numerical order

Language: English
Format: PDF
Pages: 321

Saab 900 1989 – 1990 Service Manual

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