(c) Recheck for DTCs and check if the same DTC is output again.
OK:
No DTCs are output.
NG -- REPLACE DISPLAY AND NAVIGATION MODULE DISPLAY See: Accessories and Optional Equipment/Navigation
System/Service and Repair/Navigation Receiver (for DVD)/Removal
OK -- END
From 08/2009
NAVIGATION / MULTI INFO DISPLAY: NAVIGATION SYSTEM (for DVD): B1591,B15D1: No Response from Audio HU
B1591 - No Response from Audio HU
B15D1 - Audio HU Disconnectedn
DESCRIPTION
The display and navigation module display and radio receiver assembly are connected by the MOST communication line.
When an MOST communication error occurs between the display and navigation module display and radio receiver assembly, these DTCs will be
stored.
HINT
* *1: Even if no fault is present, this DTC may be stored depending on the battery condition or engine start voltage.
* The display and navigation module display is the master unit.
WIRING DIAGRAM
INSPECTION PROCEDURE
PROCEDURE
1. CHECK OPTIONAL COMPONENTS (INCLUDING ASSOCIATED WIRING)
(a) Check for optional components.
(1) Check that optional components (including associated wiring) which generate radio waves are not installed.
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