Pinout Values and Diagnostic Parameters

NAVIGATION / MULTI INFO DISPLAY: NAVIGATION SYSTEM: TERMINALS OF ECU

1. CHECK DISPLAY AND NAVIGATION MODULE DISPLAY





(a) Disconnect the F28 display connector.
(b) Measure the resistance and voltage according to the value(s) in the table below.





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

(c) Reconnect the F28 display connector.
(d) Measure the voltage according to the value(s) in the table below.













- *1: w/ LEXUS link system
- *2: w/o Wide view front and side monitor system
- *3: w/ Rear seat entertainment system
- *4: w/ SDARS system
- If the result is not as specified, the display and navigation module display may have a malfunction.





(e) Using an oscilloscope, check waveform 1.










(f) Using an oscilloscope, check waveform 2.






2. CHECK SATELLITE RADIO TUNER





(a) Disconnect the L37 tuner connector.
(b) Measure the resistance and voltage according to the value(s) in the table below.





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

(c) Reconnect the L37 tuner connector.
(d) Measure the voltage according to the value(s) in the table below.









- *1: w/ Rear Seat Entertainment System
- *2: w/o Rear Seat Entertainment System
- If the result is not as specified, the tuner may have a malfunction.

3. CHECK RADIO RECEIVER Pinout Values and Diagnostic Parameters

4. CHECK STEREO COMPONENT AMPLIFIER Pinout Values and Diagnostic Parameters