With DSC
1. Remove the column cover. (See COLUMN COVER REMOVAL/INSTALLATION)
2. Disconnect the steering angle sensor connector.
3. Connect battery positive voltage to terminal A and ground to terminal F of the steering angle sensor.
4. Turn the steering wheel to the right and left, and verify that the voltage and pulses at the terminals are as shown in the figure.

Combination switch disassembly/assembly
Light switch removal/installationMazda 6 Service Manual: Illuminated Entry System
When the illuminated entry system operates, the overhead lights, the courtesy
lights, and an ambient light* turn on in the following conditions:
The driver's door is unlocked after the ignition is switched OFF.
The ignition is switched OFF with all doors closed.
NOTE
(Overhead lights) ...
Mazda 6 Service Manual: Selector lever inspection
1. Turn the ignition switch to ON (engine OFF).
2. With the brake pedal depressed, verify that there is a "click" at each
range when shifted.
3. Verify that the selector lever can be shifted.
4. Verify that there is a "click" at each position when shifted from P
position to L range.
5. Ver ...