Reverse Signal Circuit

NAVIGATION: NAVIGATION SYSTEM (for HDD): Reverse Signal Circuit
- Reverse Signal Circuit

DESCRIPTION

The display and navigation module display receives a reverse signal from the park/neutral position switch assembly and information about the GPS antenna, and then adjusts the vehicle position.

WIRING DIAGRAM





INSPECTION PROCEDURE

NOTICE:
Inspect the fuses for circuits related to this system before performing the following inspection procedure.

PROCEDURE

1. CHECK DISPLAY AND NAVIGATION MODULE DISPLAY (DISPLAY CHECK MODE)

(a) Enter the "Display Check" mode and select "Vehicle Signal Check" Operation Check.





(b) Check that the display changes between ON and OFF according to the shift lever operation.

OK:





HINT
This display is updated once per second. As a result, it is normal for the display to lag behind the actual shift lever operation.

NG -- CHECK DISPLAY AND NAVIGATION MODULE DISPLAY

OK -- PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE Problem Symptoms Table

2. CHECK DISPLAY AND NAVIGATION MODULE DISPLAY

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





Standard Voltage:





Text in Illustration





NG -- CHECK HARNESS AND CONNECTOR (DISPLAY AND NAVIGATION MODULE DISPLAY - REAR JUNCTION BLOCK ECU)

OK -- REPLACE DISPLAY AND NAVIGATION MODULE DISPLAY Removal

3. CHECK HARNESS AND CONNECTOR (DISPLAY AND NAVIGATION MODULE DISPLAY - REAR JUNCTION BLOCK ECU)

(a) Disconnect the L59 display and navigation module display assembly connector.

(b) Disconnect the S63 rear junction block ECU connector.

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

Standard Resistance:





NG -- REPAIR OR REPLACE HARNESS OR CONNECTOR

OK -- REPLACE LUGGAGE ROOM JUNCTION BLOCK ASSEMBLY