Reverse Signal Circuit

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

DESCRIPTION

The display and navigation module display receives a reverse signal from the main body ECU LH (cowl side junction block LH) and information about the navigation antenna assembly, and then adjusts the vehicle position on the navigation display.

The ECM sends a reverse signal based on the shift position signal received from the park/neutral position switch assembly. The reverse signal sent from the ECM is received by the main body ECU LH (cowl side junction block LH) via the network gateway ECU using CAN communication and BEAN communication.

WIRING DIAGRAM

INSPECTION PROCEDURE

PROCEDURE

1. INSPECT DISPLAY AND NAVIGATION MODULE DISPLAY

(a) Disconnect the J100 display and navigation module display connector.

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

Standard Voltage:

Text in Illustration

Text in Illustration:

NG -- CHECK HARNESS AND CONNECTOR (DISPLAY AND NAVIGATION MODULE DISPLAY - MAIN BODY ECU LH)

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

2. CHECK HARNESS AND CONNECTOR (DISPLAY AND NAVIGATION MODULE DISPLAY - MAIN BODY ECU LH)

(a) Disconnect the J100 display and navigation module display connector.

(b) Disconnect the Q2 main body ECU LH (cowl side junction block LH) connector.

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

Standard Resistance:

NG -- REPAIR OR REPLACE HARNESS OR CONNECTOR
OK -- Continue to next step.

3. READ VALUE USING TECHSTREAM

(a) Connect the Techstream to the DLC3.

(b) Turn the engine switch on (IG).

(c) Turn the Techstream on.

(d) Enter the following menus: Powertrain / Engine and ECT / Data List.

(e) According to the display on the Techstream, read the "Data List".

Engine and ECT

Engine and ECT:

OK:

NG -- GO TO AUTOMATIC TRANSMISSION SYSTEM (for A960E)
OK -- Continue to next step.

4. REPLACE MAIN BODY ECU LH (COWL SIDE JUNCTION BLOCK LH)

(a) Replace the main body ECU LH (cowl side Junction block LH).

(b) Enter the "Vehicle Signal Check Mode" screen. Refer to Check Vehicle Signal in Operation Check Operation Check.

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 -- REPLACE NETWORK GATEWAY ECU

OK -- END

5. REPLACE NETWORK GATEWAY ECU

(a) Replace the network gateway ECU Removal.

(b) Enter the "Vehicle Signal Check Mode" screen. Refer to Check Vehicle Signal in Operation Check Operation Check.

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 -- REPLACE ECM (for 4GR-FSE) Removal

OK -- END