OK -- END
From 08/2009
NAVIGATION / MULTI INFO DISPLAY: NAVIGATION SYSTEM (for HDD): 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 a MOST communication error occurs between the display and navigation module display and radio receiver assembly, these DTCs will be
stored.
HINT
For the MOST network, the display and navigation module display is the master unit.
WIRING DIAGRAM
INSPECTION PROCEDURE
NOTICE:
* Inspect the fuses for circuits related to this system before performing the following inspection procedure.
* After replacing the radio receiver assembly of vehicles subscribed to pay-type satellite radio broadcasts, registration of the
XM radio ID is necessary. (w/ SDARS System)
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.
Result:
HINT
* Electrical noise from radio waves generated by optional components or the wiring for those components may affect MOST
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