Pinout Values and Diagnostic Parameters

NAVIGATION: NAVIGATION SYSTEM: TERMINALS OF ECU

TERMINALS OF ECU

1. CHECK MULTI-DISPLAY





(a) Disconnect the K46 display connector.
(b) Measure the resistance and voltage of the wire harness side connector.





- If the result is not as specified, there may be a malfunction on the wire harness side.

(c) Reconnect the K46 display connector.
(d) Measure the voltage of the connector.









HINT:
- *1: for DVD changer models
- *2: w/o LEXUS Link System
- *3: w/ LEXUS Link System
- If the result is not as specified, the multi-display may have a malfunction.





(e) Using an oscilloscope, check the waveform 1.










(f) Using an oscilloscope, check the waveform 2.






2. CHECK NAVIGATION ECU









HINT: If the result is not as specified, the navigation ECU may have a malfunction.

3. CHECK GATEWAY ECU Pinout Values and Diagnostic Parameters
4. CHECK RADIO RECEIVER Pinout Values and Diagnostic Parameters
5. CHECK STEREO COMPONENT AMPLIFIER Pinout Values and Diagnostic Parameters
6. CHECK MAYDAY ECU Pinout Values and Diagnostic Parameters