Volvo 740 (1991 – 1992) – fuse box diagram
Year of production: 1991, 1992
Fuse box in instrument panel
The fuses (and relays) are located in the central electrical unit behind the ashtray in the center console.
instrument panel
| Position | Function | Ampere rating [A] |
| 1 | Fuel pump (main), engine control system | 25 |
| 2 | Central locking, hazard warning flashers, headlight flashers | 25 |
| 3 | Spare | — |
| 4 | Brake lights, Shift-lock | 15 |
| 5 | Glove compartment light, clock, audio system, interior light, trunk light, door open warning, power antenna | 15 |
| 6 | Heater fan ECC | 30 |
| 7 | Extra lights | 30 |
| 8 | Electrically operated windows | 30 |
| 9 | Warning light, seat belt, turn signals, heated front seats, electrically-operated windows, shift-lock | 15 |
| 10 | Heated rear window Power-operated sunroof | 30 |
| 11 | Tank pump, Lambda-sond | 15 |
| 12 | Back-up lights, cruise control, disengagement of 4th gear on automatic transmission, bulb failure warning lamp | 15 |
| 13 | Hot start valve | 15 |
| 14 | Electrically-operated side view mirrors, cigarette lighter, radio, rear wiper (wagon) | 15 |
| 15 | Horn, Windshield wash/wipe | 25 |
| 16 | Heater blower, Air conditioning | 30 |
| 17 | High beam (left) | 15 |
| 18 | High beam, right, extra lights | 15 |
| 19 | Low beam (left) | 15 |
| 20 | Low beam (right) | 15 |
| 21 | LH parking lights (front and rear), license plate light, light for: ash tray, heater, control panel, switch for heated rear window, sunroof switch, left instrument panel, radio | 15 |
| 22 | Seat belt light, RH parking lights (front and rear), center console compartment, foglight relay, lighting for: Heated seat switch, gear selector panel, rear ash tray | 15 |
| 23 | Heated front seats | 25 |
| 24 | SRS test socket | — |
| 25 | Rear fog lights | 15 |
| 26 | Radio | 15 |
| R | Spare fuses | — |
WARNING: Terminal and harness assignments for individual connectors will vary depending on vehicle equipment level, model, and market.