DTC Detection Logic
WARNING: This page is about a different car, the 2008 Infiniti QX56. However, it is still accessible from the selected car via links, so may be relevant.
DTC DETECTION LOGIC CHART
| DTC | CONSULT-III display | Detection condition | Action to take |
|---|---|---|---|
| U1220 | XM SERIAL COMM [U1220] | An internal malfunction is detected in AV control unit (satellite radio tuner communication malfunction). | Replace AV control unit. Refer to "REMOVAL AND INSTALLATION ". |