Instrumentation
- Make
- Volvo
- Model
- 900 Series 940 Factory Service Manual
- Year
- 1991–1998
- Section
- 38 Instrumentation › Specifications, electrical/electronic › Instrumentation
3 Electrical systemInstrumentation
Instrumentation
Fuel level sensor

Lever type sensor 1982 - 1986
| Fuel | Volume liters | Resistance |
|---|---|---|
| Empty tank | 0 | 296 ± 15 Ω |
| Full tank | 60 (16 gal) | 36 ± 2 Ω |
Lever type sensor 1987 - Tubular type sensor 1986 - 1992
| Fuel | Volume liters | Resistance |
|---|---|---|
| Empty tank | 0 | 0 Ω |
| Full tank | 60 (16 gal) | 280 Ω |
Lever type sensor, aux. tank 1982 -1985
| Fuel | Volume liters | Resistance |
|---|---|---|
| Empty aux. tank | 0 | 18 Ω |
| Full aux. tank | 20 (5.3 gal) | 1 Ω |
Lever type sensor, aux. tank 1986 -
| Fuel | Volume liters | Resistance |
|---|---|---|
| Empty aux. tank | 0 | 0 Ω |
| Full aux. tank: - aux. tank lever-type sensor | 20 (5.3 gal) | 60 Ω |
| Full aux. tank: - main sensor aux. lever-type sensor | 20 (5.3 gal) | 27.5 Ω |

Tubular type sensor 1993 -
| Fuel | Volume liters | Resistance |
|---|---|---|
| Empty tank | 0 | 130 ± 15 Ω |
| Full tank | 60 / 80 (15.9/21.1 gal) | 2 ± 2 Ω |
Temperature sensor coolant
Resistances at different temperatures. Always allow temperature to stabilize before taking reading.

1982 - 1986
| Temperature | Resistance sensor |
|---|---|
| 60°C (140°F) | 217 ± 35 Ω |
| 90°C (194°F) | 87 ± 15 Ω |
| 100°C (212°F) | 67 ± 15 Ω |
1987 - 1993
| Temperature | Resistance sensor |
|---|---|
| 60°C (140°F) | 560 Ω |
| 90°C (194°F) | 206 Ω |
| 100°C (212°F) | 153 Ω |
1994 -
| Temperature | Resistance sensor |
|---|---|
| 20°C (68°F) | 780 Ω |
| 90°C (194°F) | 75 Ω |
Speedometer

| Sensor | Resistance |
|---|---|
| 1820 ± 180 Ω |
Flywheel

| Sensor | Resistance |
|---|---|
| 1982-1990 | 240 ± 25 Ω |
| 1991-1994 | 170 ± 30 Ω |
| 1995- | 200 - 400 Ω |
Outside temperature

| Sensor | Resistance |
|---|---|
| 0°C (32°F) | 1333 ± 24 Ω |
| 10°C (50°F) | 868 ± 14 Ω |
| 20°C (68°F) | 582 ± 8.5 Ω |
Parts & tools for this job For 1991 Volvo 900 Series
- TOOLDigital multimeterSearch: automotive digital multimeter
- PARTAssorted fuse kitSearch: car fuse assortment kit
- TOOLWire crimper and connector kitSearch: wire crimper connector kit
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