Lexus NX: System Diagram
Lexus NX Service Manual / Audio & Visual & Telematics / Navigation / Multi Info Display / Navigation System / System Diagram
SYSTEM DIAGRAM
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System Description
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.
How To Proceed With Troubleshooting
CAUTION / NOTICE / HINT HINT:
Use the following procedure to troubleshoot the navigation system.
*: Use the Techstream.
PROCEDURE 1. VEHICLE BROUGHT TO WORKSHOP
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Operation Check
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 a malfunction. Symptom Answer A
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Assist Map Number Un-Writing (C1581)
DESCRIPTION This DTC will be stored if the power steering ECU assembly determines that the assist map is not written in the ECU. DTC No. Detection Item DTC Detection Condition Trouble Area Warning Indicate Return-to-normal Condition Note C1581 Assist Map Number Un-Writing Assi
Steering Angle Sensor Circuit (C1231)
DESCRIPTION The skid control ECU (brake booster with master cylinder assembly) receives steering sensor signals via CAN communication. When a malfunction occurs in the communication line with the steering sensor, DTC U0126 (Lost Communication with Steering Angle Sensor Module) is stored. DTC No.
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