Execution sequence
1. We prepare the car for work and disconnect the wire terminal from the negative terminal of the battery (see «Preparing the car for maintenance and repair»).
2. Remove the decorative lining of the steering column (see «Steering column trim - removal and installation»).
3. We disconnect a pair of pads of the switch wiring harness (castle) ignition.
4. Based on the color of the wires with a multimeter (in ohmmeter mode) we check the serviceability of the closure of the terminals in the block.
Comment. Perform the test with the key in position 0 - «turned off». Then check the contact closure in position I - «included» and II - «starter». The order of closing the contacts and the colors of the wires on the terminals are shown in the vehicle electrical diagram.
We replace the ignition lock with a faulty contact group (see «Switch (lock) ignition - removal and installation»).