Diagnosis Procedure

WARNING: This page is about a different car, the 2019 Infiniti QX60. However, it is still accessible from the selected car via links, so may be relevant.

CHECK AROUND BOSE SPEAKER AMP.
Check whether there is any factor which causes a temperature rise near Bose speaker amp.

Was there any factor?

YES

Remove a factor.

NO

GO TO 2.
PERFORM DTC CONFIRMATION PROCEDURE AGAIN
With CONSULT
1. Turn ignition switch ON.
2. Erase DTC.
3. Perform DTC confirmation procedure again. Refer to DTC Confirmation Procedure .
Is DTC U1231 detected again?

YES

Replace Bose speaker amp. Refer to Removal and Installation .

NO

Inspection End.