Inspection Procedure

WARNING: This page is about a different car, the 2003 Lexus LS 430. However, it is still accessible from the selected car via links, so may be relevant.

Navigation check mode. (Vehicle signal check mode: REV) (See PRE-CHECK )
1. OK : Replace navigation ECU (See HOW TO USE THE DIAGNOSTIC CHART AND INSPECTION PROCEDURE ).
2. NG : Go to next step.
Check navigation ECU.
CHECK:

Check terminal REV.

OK:

REV: See "Navigation ECU" of "TERMINAL OF ECU".
1. OK : Replace navigation ECU (See HOW TO USE THE DIAGNOSTIC CHART AND INSPECTION PROCEDURE ).
2. NG : Replace and repair wire harness (See HOW TO USE THE DIAGNOSTIC CHART AND INSPECTION PROCEDURE ).