Lexus NX: Start Up Signal Circuit between Radio Receiver Assembly and Navigation ECU
DESCRIPTION
This circuit includes the navigation ECU and radio and display receiver assembly.
WIRING DIAGRAM
PROCEDURE
1. | CHECK HARNESS AND CONNECTOR (RADIO RECEIVER ASSEMBLY - NAVIGATION ECU) |
(a) Disconnect the I153 radio receiver assembly connector.
(b) Disconnect the I173 navigation ECU connector.
(c) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
Tester Connection | Condition | Specified Condition |
I153-7 (SUP) - I173-21 (SUP) | Always | Below 1 Ω |
I153-7 (SUP) - Body ground | Always | 10 kΩ or higher |
NG | | REPAIR OR REPLACE HARNESS OR CONNECTOR |
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