Lexus ES manuals

Lexus ES: Voice Guidance Circuit between Radio Receiver and Stereo Component Amplifier

Lexus ES (XZ10) Service Manual / Audio & Visual & Telematics / Audio / Video / Audio And Visual System (for Hv Model) / Voice Guidance Circuit between Radio Receiver and Stereo Component Amplifier

DESCRIPTION

Using this circuit, the radio receiver assembly sends signals to the stereo component amplifier assembly.

WIRING DIAGRAM

PROCEDURE

1.

CHECK HARNESS AND CONNECTOR (RADIO RECEIVER ASSEMBLY - STEREO COMPONENT AMPLIFIER ASSEMBLY)

(a) Disconnect the G7 radio receiver assembly connector.

(b) Disconnect the G9 stereo component amplifier assembly connector.

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

Standard Resistance:

Tester connection

Condition

Specified condition

G7-3 (RL+) - G9-15 (II1+)

Always

Below 1 Ω

G7-8 (RL-) - G9-14 (II1-)

Always

Below 1 Ω

G9-18 (SLD1) - Body ground

Always

10 kΩ or higher

G7-3 (RL+) or G9-15 (II1+) - Body ground

Always

10 kΩ or higher

G7-8 (RL-) or G9-14 (II1-) - Body ground

Always

10 kΩ or higher
OK

PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE

NG

REPAIR OR REPLACE HARNESS OR CONNECTOR

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