Introduction
1. General Description
Voltage and Polarity
Battery
Starter
Charging System
Ignition System
Wiring, Fuses, and Relays
Lights
Heating and Ventilation
Windshield Wipers and Washers
Instruments
2. Maintenance
3. Troubleshooting
3.1 How To Read Volkswagen Current Flow Diagrams Terminal and Circuit Identification
3.1 How To Read Volkswagen Current Flow Diagrams
Terminal and Circuit Identification
3.2 Battery, Starter and Charging System Troubleshooting
3.3 Basic Electrical Troubleshooting Principles
4. Battery
4.1 Testing Battery Hydrometer Testing Open-circuit Voltage Test Load Voltage Testing
4.1 Testing Battery
Hydrometer Testing
Open-circuit Voltage Test
Load Voltage Testing
4.2 Battery Charging
5. Charging system
5.1 Charging System Troubleshooting
5.2 In-Vehicle Testing of Charging System Testing Alternator and Regulator Testing Current Drain Noisy Alternator
5.2 In-Vehicle Testing of Charging System
Testing Alternator and Regulator
Testing Current Drain
Noisy Alternator
5.3 Removing and Installing Alternator and Voltage Regulator Brushes and Voltage Regulator
5.3 Removing and Installing Alternator and Voltage Regulator
Brushes and Voltage Regulator
6. Starting System
6.1 Starting System Troubleshooting
6.2 Removing and Installing Starter Removing and Installing Solenoid Switch Replacing Starter Bushing (manual transmission only)
6.2 Removing and Installing Starter
Removing and Installing Solenoid Switch
Replacing Starter Bushing (manual transmission only)
7. Instruments
7.1 Troubleshooting Instrument Cluster and Gauges Testing Instrument Cluster Voltage and Ground Testing and Replacing Voltage Stabilizer Testing and Replacing Light Emitting Diodes (LEDs) and Indicator Bulbs Testing Upshift Indicator Replacing Dynamic Oil Pressure Warning System Control Unit (1985 through 1989 models) Testing Multifunction Indicator
7.1 Troubleshooting Instrument Cluster and Gauges
Testing Instrument Cluster Voltage and Ground
Testing and Replacing Voltage Stabilizer
Testing and Replacing Light Emitting Diodes (LEDs) and Indicator Bulbs
Testing Upshift Indicator
Replacing Dynamic Oil Pressure Warning System Control Unit (1985 through 1989 models)
Testing Multifunction Indicator
8. Windshield Wipers and Washers
8.1 Windshield Wiper and Washer System Troubleshooting Testing Windshield Wiper Motor Testing Rear Wiper Motor Testing Wiper/Washer Switch Testing Windshield Wiper Intermittent Relay
8.1 Windshield Wiper and Washer System Troubleshooting
Testing Windshield Wiper Motor
Testing Rear Wiper Motor
Testing Wiper/Washer Switch
Testing Windshield Wiper Intermittent Relay
8.2 Windshield Wiper Motor and Linkage Removing and Installing Windshield Wiper Motor Removing and Installing Rear Wiper Motor
8.2 Windshield Wiper Motor and Linkage
Removing and Installing Windshield Wiper Motor
Removing and Installing Rear Wiper Motor
9. Horns
9.1 Horn Troubleshooting
10. Exterior Lights
10.1 Troubleshooting Exterior Lights Headlights Turn Signals and Emergency Flashers Parking Lights, Taillights, Side Marker Lights, and License Plate Lights Brake Lights Back-up Lights
10.1 Troubleshooting Exterior Lights
Headlights
Turn Signals and Emergency Flashers
Parking Lights, Taillights, Side Marker Lights, and License Plate Lights
Brake Lights
Back-up Lights
10.2 Steering Column Switches Ignition Switch
10.2 Steering Column Switches
Ignition Switch
11. Heating, Ventilation and Air Conditioning
Fresh Air Blower
Air Conditioning
Rear Window Defogger
12. Power Options and Accessories
12.1 Heated Seats
12.2 Electric/Heated Outside Mirrors
12.3 Central Locking System
12.4 Power Windows
12.5 Cruise Control
13. Fuse/Relay Panel
1985 through 1989 (up to VIN 1G-KW400 000) Jetta fuse/relay panel
1989 through 1992 (from VIN 1G-KW400 001) Jetta fuse/relay panel
1985 Golf and GTI relay panel
1985 Golf and GTI fuse panel
1986 through 1989 Golf and GTI (US production) relay panel
1986 through 1989 Golf and GTI (US production) fuse panel
1989 Golf and GTI (Mexican production) fuse/relay panel
1990 through 1992 Golf and GTI fuse/relay panel