(c) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
Text in Illustration
NG -- REPAIR OR REPLACE HARNESS OR CONNECTOR
OK -- Continue to next step.
3. CHECK DTC
(a) Clear the DTCs See: Accessories and Optional Equipment/Navigation System/Testing and Inspection/Reading and Clearing
Diagnostic Trouble Codes/Navigation System (for HDD).
(b) Recheck for DTCs and check if the same DTC is output again.
Result:
B -- REPLACE DISPLAY AND NAVIGATION MODULE DISPLAY See: Accessories and Optional Equipment/Navigation
System/Service and Repair/Navigation Receiver (for HDD)/Removal
A -- USE SIMULATION METHOD TO CHECK See: Accessories and Optional Equipment/Antitheft and Alarm
Systems/Diagrams/Diagnostic Aids/How To Troubleshoot ECU Controlled Systems/How To Proceed With Troubleshooting
From 08/2009
NAVIGATION / MULTI INFO DISPLAY: NAVIGATION SYSTEM (for HDD): B15D0: MOST Communication Malfunction
B15D0 - MOST Communication Malfunction
DESCRIPTION
This DTC is stored when the MOST network cannot be established after the master unit is activated.
HINT
* If a short occurs in a speaker circuit, the sound from the corresponding speaker will be low or almost impossible to hear. If the
volume is turned up in this situation, to prevent excessive current flow due to the short circuit, the stereo component amplifier
assembly stops operating when its output exceeds a certain level. When the operation of the stereo component amplifier
assembly stops, the navigation system will not function normally. This is because MOST communication will stop due to the
shut down of the amplifier causing an error in the MOST network. The stereo component amplifier assembly will start
operating again when the engine switch is turned off and back on (ACC) again. However, the amplifier will stop operating
again if its output exceeds a certain level. (for 15 speakers)
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