Home Audio/Visual/Telematics Navigation/Multi Info Display NAVIGATION SYSTEM
Last Modified: 11-27-2007 1.6 J
Service Category: Audio/Visual/Telematics Section: Navigation/Multi Info Display
Model Year: 2008 Model: LX570 Doc ID: RM000002YO8003X
Title: NAVIGATION / MULTI INFO DISPLAY: NAVIGATION SYSTEM: DESCRIPTION (2008 LX570)

Sound Signal Circuit between Radio Receiver and Multi-display

DESCRIPTION

This is the sound signal circuit from the display and navigation module display to the radio receiver.

WIRING DIAGRAM



INSPECTION PROCEDURE

PROCEDURE

1.

CHECK HARNESS AND CONNECTOR (RADIO RECEIVER - SATELLITE RADIO TUNER)


(a) Disconnect the F24 receiver connector.

(b) Disconnect the L37 tuner connector.

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

Standard Resistance:

Tester Connection

Condition

Specified Condition

F24-2 (CDR+) - L37-2 (FRO+)

Always

Below 1 Ω

F24-3 (CDR-) - L37-3 (FRO-)

Always

Below 1 Ω

F24-4 (CDL+) - L37-4 (FLO+)

Always

Below 1 Ω

F24-5 (CDL-) - L37-5 (FLO-)

Always

Below 1 Ω

F24-6 (MUTE) - L37-6 (MUTE)

Always

Below 1 Ω

L37-1 (SLD) - Body ground

Always

10 kΩ or higher

F24-6 (MUTE) - Body ground

Always

10 kΩ or higher

F24-2 (CDR+) - Body ground

Always

10 kΩ or higher

F24-3 (CDR-) - Body ground

Always

10 kΩ or higher

F24-4 (CDL+) - Body ground

Always

10 kΩ or higher

F24-5 (CDL-) - Body ground

Always

10 kΩ or higher

OK

2.

CHECK HARNESS AND CONNECTOR (SATELLITE RADIO TUNER - DISPLAY AND NAVIGATION MODULE DISPLAY)


(a) Disconnect the L39 tuner connector.

(b) Disconnect the F34 display connector.

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

Standard Resistance:

Tester Connection

Condition

Specified Condition

L39-15 (MUT2) - F34-8 (MUTE)

Always

Below 1 Ω

L39-8 (FLI+) - F34-3 (FL+)

Always

Below 1 Ω

L39-7 (FLI-) - F34-4 (FL-)

Always

Below 1 Ω

L39-10 (FRI+) - F34-1 (FR+)

Always

Below 1 Ω

L39-9 (FRI-) - F34-2 (FR-)

Always

Below 1 Ω

F34-5 (SLD1) - Body ground

Always

10 kΩ or higher

L39-15 (MUT2) - Body ground

Always

10 kΩ or higher

L39-8 (FLI+) - Body ground

Always

10 kΩ or higher

L39-7 (FLI-) - Body ground

Always

10 kΩ or higher

L39-10 (FRI+) - Body ground

Always

10 kΩ or higher

L39-9 (FRI-) - Body ground

Always

10 kΩ or higher

OK