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 passenger side junction block ECU and information about the navigation antenna, and then adjusts the vehicle position on the navigation display.

WIRING DIAGRAM





INSEPCTION PROCEDURE

PROCEDURE

1. CHECK REVERSE SIGNAL (DISPLAY CHECK MODE)

(a) Enter the "Vehicle Signal Check Mode" screen. Refer to Check Vehicle Signal in Operation 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 switch operation.

NG -- INSPECT DISPLAY AND NAVIGATION MODULE DISPLAY

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

2. INSPECT DISPLAY AND NAVIGATION MODULE DISPLAY

(a) Disconnect the D24 display and navigation module display connector.





(b) 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 - PASSENGER SIDE J/B)

OK -- REPLACE DISPLAY AND NAVIGATION MODULE DISPLAY Removal

3. CHECK HARNESS AND CONNECTOR ((DISPLAY AND NAVIGATION MODULE - PASSENGER SIDE J/B)

(a) Disconnect the D24 display and navigation module display connector.

(b) Disconnect the P5 passenger side 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 PASSENGER SIDE JUNCTION BLOCK ECU