Toyota Avalon Service & Repair Manual: Reverse Signal Circuit between Radio Receiver Assembly and Navigation ECU

Toyota Avalon Service & Repair Manual / Audio, Visual, Telematics / Navigation / Multi Info Display / Navigation System(for Gasoline Model) / Reverse Signal Circuit between Radio Receiver Assembly and Navigation ECU

DESCRIPTION

This circuit includes the navigation ECU and radio and display receiver assembly.

WIRING DIAGRAM

PROCEDURE

1.	CHECK HARNESS AND CONNECTOR (RADIO AND DISPLAY RECEIVER ASSEMBLY - NAVIGATION ECU)

(a) Disconnect the G1 radio and display receiver assembly connector.

(b) Disconnect the G13 navigation ECU connector.

Standard Resistance:

Tester Connection	Condition	Specified Condition
G1-28 (REV2) - G13-19 (REV2)	Always	Below 1 Ω
G1-28 (REV2) or G13-19 (REV2) - Body ground	Always	10 kΩ or higher

PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE

REPAIR OR REPLACE HARNESS OR CONNECTOR

Registered Device cannot be Deleted

Reverse Signal Circuit

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