1. Start up the engine and warm up it to working temperature. |
2. Check, whether clicks are listened and whether frequency of rotation of a cranked shaft of the engine to 1000 mines-1 increases at a detachment of the socket of the electromagnetic valve of a control system of frequency of rotation of idling (IAC). |
3. If frequency of rotation of a cranked shaft of the engine does not change, check the IAC valve as follows. |
| 4. Disconnect the electric socket from the IAC valve. |
| 5. Measure resistance of the IAC valve. Resistance: 15–18,2 Ohm (at temperature 20°С) |
6. If resistance does not correspond to the specified range of values, replace the IAC valve. |