Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
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HOMESERVICE MANUALSVOLVO1991740 BASE, 4D WAGON, AUTOMATIC, AW70LREPAIR AND DIAGNOSIS (SINGLE PAGE)ELECTRICALCOMPONENT LOCATIONSELECTRICAL COMPONENT LOCATORBUZZERS, RELAYS & TIMERS
1991 Volvo 740 Base, 4D Wagon, Automatic, AW70L
Buzzers, Relays & Timers
1991 Volvo 740 Base, 4D Wagon, Automatic, AW70LSECTION Buzzers, Relays & Timers
BUZZERS, RELAYS & TIMERS LOCATION
| Component | Location | |
|---|---|---|
| A/C Cut-Out Relay (940 GLE) | On left side of engine compartment, on shock tower. | |
| A/C-Heater Blower Motor Relay | Under right side of dash, behind glove box. | |
| ABS Hydraulic Pump Relay | On top of ABS hydraulic pump. | |
| ABS Solenoid Relay | On top of ABS hydraulic pump. | |
| Bulb Failure Warning Relay | In fuse/relay block. See Figure . | |
| Central Locking System Relay | In fuse/relay block. See Figure . | |
| Cooling Fan Relay | In engine compartment. | |
| EGR Delay Relay | On left side of engine compartment, on shock tower. | |
| Foglight Relays (Front & Rear) | In fuse/relay block. See Figure . | |
| Fuel Injection System Relay | In fuse/relay block. See Figure . | |
| Fuel Injector Relay | ||
| B230F Engines | On right side of engine compartment, near coolant reservoir. | |
| B230FT Engines | On left side of engine compartment, near shock tower. | |
| Headlight Relay | In fuse/relay block. See Figure . | |
| Intermittent Wiper Relay - Front Windshield | In fuse/relay block. See Figure . | |
| Rear Window | In fuse/relay block. See Figure . | |
| Overdrive Relay | In fuse/relay block. See Figure . | |
| Power Window/Seat Heater Relay | In fuse/relay block. See Figure . | |
| Radio Suppressor Relay | On left side of engine compartment, near shock tower. See Figure . | |
| Radio Suppressor Relay | On left side of engine compartment, near shock tower. See Figure . | |
| Rear Window/Side Mirror Defogger Delay Relay | Integral with defogger switch assembly. | |
| Seat Belt Reminder Relay | In fuse/relay block. See Figure . | |
| Seat Heater Relay | In fuse/relay block. | |
| Shift Lock Solenoid Relay | Behind left side of dash. | |
| Turn Signal/Hazard Flasher | In fuse/relay block. See Figure . | |
RENDER: 1.0x
NO RELATED
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.