Lexus IS250 IS220d GSE20 ALE20 - NAVIGATION

DESCRIPTION

WIRING DIAGRAM

INSPECTION PROCEDURE

CHECK HARNESS AND CONNECTOR (NAVIGATION ECU - MULTI-DISPLAY)

NAVIGATION SYSTEM - Display Signal Circuit between Navigation ECU and Multi-display

DESCRIPTION

This is the display signal circuit from the navigation ECU to the multi-display.


WIRING DIAGRAM

Navigation System - Display Signal Circuit Between Navigation Ecu And Multi-Display. NAVIGATION. Lexus IS250 IS220d GSE20 ALE20

INSPECTION PROCEDURE

1.CHECK HARNESS AND CONNECTOR (NAVIGATION ECU - MULTI-DISPLAY)
Navigation System - Display Signal Circuit Between Navigation Ecu And Multi-Display. NAVIGATION. Lexus IS250 IS220d GSE20 ALE20

Disconnect the navigation ECU connector q2 and multi-display connector q1.

Measure the resistance according to the value(s) in the table below.

  • Standard resistance:
  • Tester ConnectionConditionSpecified Condition
    GVI+ - GVI+AlwaysBelow 1 Ω
    GVI- - GVI-AlwaysBelow 1 Ω
    GND - GVG1AlwaysBelow 1 Ω
    GVI+ - Body groundAlways10 kΩ or higher
    GVI- - Body groundAlways10 kΩ or higher
NG
REPAIR OR REPLACE HARNESS OR CONNECTOR
OK
PROCEED TO NEXT CIRCUIT INSPECTION SHOWN IN PROBLEM SYMPTOMS TABLE
LEXUS IS250, IS220d / GSE20 ALE20
NAVIGATION
Lexus IS250 IS220d GSE20 ALE20
NAVIGATION SYSTEM