Comment. The performance of the work is shown on the Astra model.
Execution sequence
1. We prepare the car for work (see «Preparing the car for maintenance and repair»).
2. Remove the glove box and air conditioner filter cover (see «Astra air conditioner filter - replacement»).
3. Disconnect two electric fan wires from the resistor.
4. Pulling up, remove the resistor from the mounting bracket.
5. By pressing the latch, disconnect the wiring harness block from the resistor.
6. With a multimeter in ohmmeter mode, we check the presence of resistance in pairs of contacts. Infinite resistance (chain break) between any contacts indicates the need to replace the additional resistor. The closure of pairs of contacts occurs in the following order:
- 4th speed - pins 7 and 6, resistance is minimal;
- 3rd speed - pins 7 and 4, resistance increases;
- 2nd speed - pins 7 and 3, resistance increases;
- 1st speed - pins 7 and 5, resistance increases.
7. Install the parts in reverse order.
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