DTC U2106-03: Switch Pack Signal "B" - FM (Frequency Modulated)/PWM (Pulse Width Modulated) failures: Action
- Refer to the electrical circuit diagrams and check the touch screen switchpack illumination circuit for short circuit to ground, short circuit to power, open circuit, high resistance. Repair the wiring harness as necessary
- If fault persists, check and install new touch screen switchpack as required