Chevrolet Chevette 1979-1981 fuse box and relay Diagrams
The Chevrolet Chevette (1979-1981) relies on a simple yet essential electrical system managed by fuses and relays. The fuse box is located under the dashboard on the driver’s side, controlling key electrical components such as the headlights, turn signals, windshield wipers, and interior lighting. Each fuse is designed to protect specific circuits by breaking the electrical connection if there’s an overload, preventing damage to the wiring and components.
The Chevette also uses relays to manage higher-power functions, such as the horn and the starter motor. These relays act as switches that allow a small current to control a larger one. If a relay fails, it can lead to malfunctions in these systems, such as the engine not starting due to a faulty starter relay.
Regular inspection of the fuses and relays in the Chevrolet Chevette ensures the electrical system continues to operate reliably, preventing common issues such as blown fuses or relay failures from disrupting the car’s functionality.
MUST READ: DYI – How to Check Car Fuses?
(1979-1981) Chevrolet Chevette fuse box and relay with Diagram
WARNING
- Never replace a fuse with one that has a higher amperage rating.
- A fuse with a too-high amperage could damage the electrical part and cause a fire.
- On no account should fuses be repaired (e.g. patched up with tin foil or wire) as this may cause serious damage elsewhere in the electrical circuit or cause a fire.
- If a fuse blows repeatedly, do not keep replacing it. Instead, have the cause for the repeated short circuit or overload tracked and fixed.
- Terminal and harness assignments for individual connectors will vary depending on vehicle equipment level, model, and market.
Chevrolet Chevette 1979-1981 fuse assignment
Year of production: from 1979, 1980, 1981
Fuse box diagram
| Fuse | [A] | Protected Component |
| 1 | 25 | Choke heater |
| 2 | 10 | Electronic Control Module |
| 3 | 20 | Clock, cigar lighter, key warning buzzer, dome and glove box lights, courtesy, reading, lugagge and engine compartment lights |
| 4 | 20 | Tail light, parking light, side marker light, licenses light, underhood light |
| 5 | 20 | Stop and hazard lights |
| 6 | 4 | Instrument panel, radio, heater and windshield wiper switch lights |
| 7 | 25 | Heater and air conditioning |
| 8 | 20 | Turn signal and back-up lights |
| 9 | 10 | Gauges, warning indicators, headlight and seat belt warning buzzers, cruise control |
| 10 | 10 | Radio, idle stop solenoid and pulse wipers |
| 11 | 25 | Windshield wiper and washer |
Circuit Breaker:
- Headlights — Circuit breaker is integral with headlight switch to protect headlight circuit.
- Windshield Wiper — Circuit breaker integral with windshield wiper switch to protect wiper circuit.
- Power Seats, Power Windows & Power Door Locks — Circuit breaker is located on fuse panel to protect power accessories.
- Rear Window Defogger – Circuit breaker is located on left side fender inner skirt.
Conclusion
For owners and enthusiasts of classic Chevrolet Chevette 1979-1981, understanding the fuse box and relay systems is essential for vehicle maintenance. Regular inspection and maintenance of these components helped ensure the vehicle’s longevity and reliability, preserving its status as a symbol of Chevrolet’s craftsmanship and innovation in the automotive industry during that era.