Resistance values, evaporator temperature sensor
The component specification gives the value of the component without the connector connected.
Scheme 74
| Measurement values, resistance | Other |
|---|---|
| 40 °C = approximately 91.8 kohms -35 °C = approximately 66.3 kohms -30 °C = approximately 48.4 kohms -25 °C = approximately 35.7 kohms -20 °C = approximately 26.6 kohms -15 °C = approximately 20.0 kohms -10 °C = approximately 15.2 kohms -5 °C = approximately 11.6 kohms 0 °C = approximately 9.0 kohms 5 °C = approximately 7.0 kohms 10 °C = approximately 5.5 kohms 15 °C = approximately 4.3 kohms 20 °C = approximately 3.5 kohms 25 °C = approximately 2.7 kohms 30 °C = approximately 2.2 kohms 35 °C = approximately 1.8 kohms 40 °C = approximately 1.5 kohms 45 °C = approximately 1.2 kohms 50 °C = approximately 1.0 kohms 55 °C = approx. 826 ohms 60 °C = approx. 688 ohms 65 °C = approx. 576 ohms 70 °C = approx. 485 ohms 75 °C = approx. 409 ohms 80 °C = approx. 347 ohms 85 °C = approx. 296 ohms 90 °C = approx. 253 ohms 95 °C = approx. 217 ohms 100 °C = approx. 187 ohms | Measure the resistance between terminals #1 and #2. |
Temperature and resistance table, evaporator temperature sensor
Component resistance values
The resistance values assume a temperature of +20°C unless otherwise stated.
Note. For the damper motors, a diode must be connected in series with each winding. This can have a great effect on the measurement value when resistance testing if measured using a tool other than VIDA. The resistance given will be significantly higher than the value given in the table below.
| Component | Other |
|---|---|
| Evaporator temperature sensor | Resistance: -40 °C = approximately 91.8 kohms -30 °C = approximately 48.4 kohms -20 °C = approximately 26.6 kohms -10 °C = approximately 15.2 kohms 0 °C = approximately 9.0 kohms 10 °C = approximately 5.5 kohms 20 °C = approximately 3.4 kohms 30 °C = approximately 2.2 kohms 40 °C = approximately 1.5 kohms 50 °C = approximately 1.0 kohms 60 °C = approximately 0.7 kohms 70 °C = approximately 0.5 kohms 80 °C = approximately 0.3 kohms 90 °C = approximately 0.2 kohms |
| Blower fan motor power unit | Resistance: #A4-#A1 = 510 ohms #A3-#B1 = 4.7 kohms |
| Damper motor normal (temp l/r, def) | Resistance in the windings between terminals: #1-#3 = 46 ohms #1-#4 = 46 ohms #1-#5 = 46 ohms #1-#6 = 46 ohms |
| Damper motor fast (floor / vent, rec, mode) | Resistance in the windings between terminals: #1-#3 = 15 ohms #1-#4 = 15 ohms #1-#5 = 15 ohms #1-#6 = 15 ohms |
| Fan motor passenger compartment temperature sensor | Resistance in the windings between terminals: #3-#4 = 68 ohms #1-#5 = 450-900 ohms |
Component Temperature And Resistance Table, System Components
Components resistance values
Resistance values are given at +20°C (+68°F) unless otherwise stated.
| Component | Other |
|---|---|
| Water temperature sensor | Resistance: 10°C (50°F): approximately 20 kohms 20°C (68°F): approximately 11 kohms 30°C (86°F): approximately 8 kohms 75°C (167°F): approximately 1.5 kohms 90°C (194°F): approximately 900 ohms |
| Heater fan | Wire resistance between connections: 1-10 ohms |
| Water pump | Wire resistance between connections: 1-10 ohms |
| Fuel pump | Wire resistance between connections: approximately 8 ohms |
| Glow plug | Resistance: approximately 1 ohms |
| Overheat thermostat | Resistance: Not activated < 3 ohms Activated > 10 kohms |