8.12.3. Technique of search of malfunctions of devices

Index of temperature of cooling liquid
When the arrow of the index is constantly in the beginning of a scale, at the included ignition disconnect a wire from the sensor of the index and connect a wire tip to weight.

Fig. 8 — 44. Scheme of connections of a combination of devices (rear view): 1 — the index of level of fuel with a control lamp of a reserve; 2 — the lighting lamp of a combination of devices; 3 — a speedometer; 4 — a control lamp of the air gate of the carburetor; 5 — a control lamp of indexes of turn; 6 — a control lamp of the category of the rechargeable battery; 7 — a tachometer; 8 — эконометр; 9 — the index of temperature of cooling liquid; 10 — a control lamp of pressure of oil; 11 — a control lamp of the parking brake; 12 — a control lamp of driving beam of headlights; 13 — a control lamp of external lighting; 14 — the voltmeter; And — the scheme of conditional numbering of plugs in blocks of a combination of devices

If the arrow deviates, then the sensor is faulty and it needs to be replaced and if does not deviate, then remove a guard of devices and at the included ignition connect to weight the plug "6" red (right in fig. 8 — 44.) blocks of a combination of devices which the green wire with a white strip approaches. The arrow deviation in this case will indicate serviceability of the device and damage of the wire connecting the sensor to a combination of devices. If the arrow does not deviate, then replace a combination of devices.
When the arrow of the index constantly is in a red zone, at the included ignition disconnect a wire from the sensor. At the faulty sensor of the shooter has to return to the beginning of a scale. If it remains in a red zone, then or the wire is closed on weight, or the device is damaged. Serviceability of the device can be checked, having disconnected a green wire with a white strip from a combination of devices. At the included ignition of the shooter has to be in the beginning of a scale.
Index of level of fuel
The technique of check is similar described above. At the same time it must be kept in mind that the wire going to a control lamp of a reserve of fuel, and to the plug "T" — the wire going to the index joins the plug "W" of the sensor of the index.
If the arrow of the index is constantly in the beginning of a scale and does not deviate after short circuit with a mass of a tip of the wire disconnected from the sensor plug "T", then check the device. For this purpose remove a guard of devices and at the included ignition connect the plug "1" of a white block of a combination of devices which the pink wire with a white strip approaches to weight. At the serviceable device of the shooter has to deviate until the end of a scale.
When the arrow of the index constantly is in the end of a scale, serviceability of the device can be checked, having disconnected a white block of wires from a combination of devices and having connected the plug "4" of a white block of a combination of devices to "plus" of the rechargeable battery. In this case at the serviceable device of the shooter has to be in the beginning of a scale.
Index of pressure of oil
The technique of check is similar described above. When troubleshooting it is necessary to connect to weight or to disconnect the gray wire with white strips going to the sensor from the device.