The position of the steering column switches: A - left steering column switch (headlight and turn signal switch); B - right stalk switch (wiper and washer switch)
Note. The dotted line shows the positions in which the switch levers are not fixed. Two trip computer control buttons are built into the right switch lever.
The paddle shifters must be removed individually for inspection and replacement. Before dismantling the steering column and other similar work, it is advisable to remove the steering column switches together with the connector («Steering column - removal and installation»).
You will need a multimeter to do the job.
Removing the steering column switches
1. We prepare the car for work and disconnect the wire terminal from the negative terminal of the battery («Preparing the car for maintenance and repair»).
2. Remove the decorative lining of the steering column («Decorative overlays of a steering column - removal and installation»).
3. Squeezing the spring clips of the right switch, remove it from the connector together with the connected wiring harness block.
4. Disconnect the wiring harness block from the switch.
5. Disconnect the block of the wiring harness for the trip computer control buttons.
6. Similarly, remove the left steering column switch.
Examination
With a multimeter in ohmmeter mode, we check the closure of the contacts in the switches at various positions of the switch lever.
Comment. The order of closing contacts at different positions of the switch levers is presented in Table 13.9.1.
Installing paddle shifters
Install switches in reverse order.
Table 13.9.1. Closing of contacts at frame positions of levers of understeering switches
Switch lever position | Left switch | Right switch | ||
Closed contact terminals* | Switched electrical equipment | Closed contact terminals* | Switched electrical equipment | |
1 | 49a-49aL | Left turn indicator | 53e-53 | Windshield wiper off |
2** | 49a-49aL | Left turn indicator | 53e-53
53a-j | Intermittent windshield wiper operation |
3 | — | Turn signals off | 53s-53
53a-j | Intermittent windshield wiper |
56—56b | dipped headlights | |||
4** | 49a-49aR | Right turn indicator | 53a-53 | 1st speed windshield wiper |
5 | 49a—49aR | Right turn indicator | 53a-53b | 2nd speed windshield wiper |
6** | 30-56a | High beam signaling | 53ah—W | Windshield washer |
56-56b | dipped headlights | |||
7 | 56-56a | high beam headlights | 53ah—53H | Reserve |
8** | — | — | 53ah—53H | Reserve |
53ah—WH | Reserve |
* Pin designations are printed on the switch body.
** Unfixed position.