Reverse Signal Circuit

NAVIGATION / MULTI INFO DISPLAY: NAVIGATION SYSTEM: Reverse Signal Circuit
- Reverse Signal Circuit

DESCRIPTION

The navigation receiver assembly receives a reverse signal from the power management control ECU via the integration relay to use for adjusting the vehicle position on the navigation display.

WIRING DIAGRAM

INSPECTION PROCEDURE

PROCEDURE

1. INSPECT NAVIGATION RECEIVER ASSEMBLY

(a) Disconnect the L42 navigation receiver assembly connector.

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

Standard Voltage:

Text in Illustration

NG -- CHECK HARNESS AND CONNECTOR (NAVIGATION RECEIVER ASSEMBLY - INTEGRATION RELAY)

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

2. CHECK HARNESS AND CONNECTOR (NAVIGATION RECEIVER ASSEMBLY - INTEGRATION RELAY)

(a) Disconnect the L42 navigation receiver assembly connector.

(b) Disconnect the 1G integration relay connector.

Text in Illustration

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

3. INSPECT INTEGRATION NO.1 RELAY

(a) Disconnect the 1G integration relay connector.

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

Standard Voltage:

Text in Illustration

NG -- CHECK HARNESS AND CONNECTOR (INTEGRATION RELAY - POWER MANAGEMENT CONTROL ECU)

OK -- REPLACE INTEGRATION NO.1 RELAY Removal

4. CHECK HARNESS AND CONNECTOR (INTEGRATION RELAY - POWER MANAGEMENT CONTROL ECU)

(a) Disconnect the 1G integration relay connector.

(b) Disconnect the A21 power management control ECU connector.

Text in Illustration

NG -- REPAIR OR REPLACE HARNESS OR CONNECTOR

OK -- REPLACE POWER MANAGEMENT CONTROL ECU Removal