Toyota Camry (XV70): System Diagram
SYSTEM DIAGRAM

w/ Manual (SOS) Switch

w/o Manual (SOS) Switch

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SYSTEM DESCRIPTION NAVIGATION SYSTEM OUTLINE (a) Vehicle position tracking methods
It is essential that the navigation system correctly tracks the current vehicle position and displays it on the map
CAUTION / NOTICE / HINT
HINT:
Use the following procedure to troubleshoot the navigation system.
*: Use the Techstream.
PROCEDURE
1. VEHICLE BROUGHT TO WORKSHOP
OPERATION CHECK CHECK NAVIGATION SYSTEM NORMAL CONDITION
(a) If the cause of a symptom is any of the following, the corresponding symptom is normal; it is not due to a malfunction.
Symptom A
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DESCRIPTION These DTCs are stored when a malfunction occurs in the Navigation ECU.
DTC No. Detection Item
DTC Detection Condition Trouble Area
B1556 Extension Module Malfunction 2
When any of the following conditions is met:
Internal power supply malfunction
REPLACEMENT CAUTION / NOTICE / HINT
The necessary procedures (adjustment, calibration, initialization, or registration) that must be performed after parts are removed and installed, or replaced during automatic transaxle fluid replacement are shown below. Necessary Procedures After Parts Removed/I