Vehicle Segment:
Compact Executive Sedan/Wagon
Target Audience Manual:
Volvo owners, independent repair shops, automotive technicians
Competitors Vehicle:
BMW 3 Series, Mercedes-Benz 190E, Audi 80/90, Saab 900
Volvo Philosophy:
Emphasis on Safety, Durability, and Practicality
Manual Value Proposition:
Empowers users to diagnose and repair complex electrical issues, saving time and money.
Primary Coverage:
Electrical System Wiring Diagrams and Troubleshooting
Secondary Coverage:
Component Location, Diagnostic Procedures
Estimated Pages:
Approx. 150-250 pages (typical for this era and manual type)
Type:
Service Manual / Electrical Troubleshooting Manual
Format:
PDF (likely a scanned original or digital reproduction)
Engine Management:
Fuel Injection (LH-Jetronic 2.4 or Motronic), Ignition System, Sensors, Actuators
Powertrain Controls:
Automatic Transmission Control (AW71, AW72), Idle Speed Control
Lighting:
Headlights, Taillights, Interior Lighting, Fog Lights
Instruments And Gauges:
Speedometer, Tachometer, Fuel Gauge, Temperature Gauge, Warning Lights
Comfort And Convenience:
Power Windows, Power Locks, Power Mirrors, Sunroof, Climate Control (HVAC), Cruise Control
Audio And Accessories:
Radio/Cassette Player Wiring, Speaker Wiring, Antenna, Power Outlets
Safety Systems:
ABS (Anti-lock Braking System) Wiring, Seatbelt Warning System
Chassis Electronics:
Wiper/Washer System, Horn, Exterior Lighting Relays and Fuses
Troubleshooting Methodology:
Step-by-step diagnostic flowcharts for common electrical faults
Wiring Diagram Interpretation:
Explanation of symbols, wire colors, connector pinouts
Component Location:
Diagrams and descriptions for locating ECUs, relays, fuses, sensors, and actuators
Fuse And Relay Identification:
Detailed charts for fuse box and relay panel layouts
Ground Point Identification:
Location of major chassis and engine ground points
Connector Pinout Diagrams:
Detailed diagrams for main ECUs, sensors, and switches
Depth Level:
Comprehensive Electrical System Diagnostics and Repair
Diagnostic Tools:
Guidance on using multimeters, test lights, and basic diagnostic principles
Repair Guidelines:
Instructions for testing, replacing, and repairing electrical components and wiring harnesses
Engine Code Family:
Volvo B230 (Redblock)
Engine Type:
Inline-4 Cylinder, Overhead Valve (OHV), Pushrod Actuated
Displacement:
2.3 Liters (2316 cc)
Horsepower 940 Na:
114-116 hp @ 4800 rpm (Naturally Aspirated)
Torque 940 Na:
130-135 lb-ft @ 3000 rpm (Naturally Aspirated)
Horsepower 940 Turbo:
130-135 hp @ 4800 rpm (Turbocharged)
Torque 940 Turbo:
160-165 lb-ft @ 2500 rpm (Turbocharged)
Fuel Delivery:
Bosch LH-Jetronic 2.4 Fuel Injection (Naturally Aspirated & Turbo Models)
Ignition System:
Bosch EZK Electronic Ignition (Turbo) or Motronic (some NA models, less common for 1994 940)
Recommended Fuel:
Unleaded 87 Octane minimum (91 Octane recommended for Turbo)
Transmission Type Standard:
4-Speed Automatic (e.g., AW71 or AW72)
Transmission Type Optional:
5-Speed Manual (M46 with Overdrive, M47)
Automatic Features:
Lock-up Torque Converter, Sport/Economy Mode (on some AW71 variants)
Automatic Transmission Fluid:
Dexron II/III (Check specific vehicle application for exact spec)
Automatic Transmission Capacity:
Approx. 7-8 Liters (including torque converter, requires refill procedure)
Length:
4785 mm (188.4 in)
Height:
1420 mm (55.9 in)
Wheelbase:
2770 mm (109.1 in)
Trunk Volume Sedan:
Approx. 0.50 m³ (17.7 cu ft)
Cargo Volume Wagon:
Approx. 0.85 m³ (30 cu ft) with seats up, 1.75 m³ (62 cu ft) with seats down
Curb Weight:
Approx. 1350-1450 kg (2975-3195 lbs)
Gross Vehicle Weight Rating:
Approx. 1900-2000 kg (4189-4409 lbs)
NHTSA Rollover Rating:
4/5 Star (for the era)
ABS:
Optional (Standard on Turbo models in some markets)
Traction Control:
Not typically available for this model year
Airbags:
Driver's Side Airbag Standard
Seatbelts:
3-point inertia-reel seatbelts front and rear, Side-impact protection (SIPS) structure
Crumple Zones:
Designed front and rear crumple zones
Oil Change Interval:
Every 7,500 miles or 12 months, whichever comes first (using synthetic oil)
Timing Belt Replacement:
Every 50,000-60,000 miles or 5 years (critical for interference engines, B230 is non-interference but belt failure causes issues)
Spark Plug Replacement:
Every 30,000 miles
Engine Oil Type:
API SG/SH, SAE 10W-30 or 10W-40 (check owner's manual for specific viscosity by temperature)
Coolant Type:
Volvo Blue Antifreeze (Ethylene Glycol based) or equivalent
Brake Fluid Type:
DOT 3 or DOT 4
Engine Oil Capacity:
Approx. 4.5 Liters (4.8 US Quarts) with filter
Coolant Capacity:
Approx. 7.5 Liters (7.9 US Quarts)
Common Electrical Problems:
Faulty Mass Air Flow (MAF) sensor, intermittent power to accessories, worn wire insulation, brittle vacuum lines, failing fuel pump relay, idle control valve issues.
Common Engine Problems:
Oil leaks (especially rear main seal), sludge buildup from infrequent oil changes, worn valve stem seals.
Common Transmission Problems:
Slipping in higher gears (automatic), worn clutch (manual), transmission fluid leaks.
Oil Filter Example:
Volvo Part No. 3517870 (or equivalent like Mann-Filter W925/1, Bosch 0986452017)
Air Filter Example:
Volvo Part No. 1320126 (or equivalent like Mann-Filter C2224, Bosch 1457433925)
Volvo Reputation:
Known for safety, durability, and robust engineering.
900 Series Lineage:
Successor to the 700 series, sharing many platform components.
940 Distinction:
Simplified powertrain and chassis compared to the 960 series, focusing on the proven Redblock engine.
Production Years:
1990-1998
Manufacturing Location:
Sweden (primarily Torslanda)
