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Last Modified: 11-27-2007 1.6 C
Service Category: Audio/Visual/Telematics Section: Navigation/Multi Info Display
Model Year: 2008 Model: LX570 Doc ID: RM00000182J03AX
Title: NAVIGATION / MULTI INFO DISPLAY: NAVIGATION SYSTEM: DESCRIPTION (2008 LX570)

DTC

01-D6

No Master

DTC

01-D7

Connection Check Error

DESCRIPTION

DTC Code

DTC Detection Condition

Trouble Area

01-D6*1

When either of the following conditions is met:

  • The component which has stored the code has (had) been disconnected when the engine switch is on (ACC) or on (IG).
  • The master device has (had) been disconnected when this code is stored.
  • Display and navigation assembly power source circuit
  • Power source circuit of component which has stored this code
  • AVC-LAN circuit between display and navigation module display and component which has stored this code
  • Component which has stored this code
  • Display and navigation module display

01-D7*2

When either of the following conditions is met:

  • The component which has stored the code has (had) been disconnected after the engine starts (started).
  • The master device has (had) been disconnected when this code is (was) stored.

HINT:

*1: Even if no fault is present, this trouble code may be stored depending on the battery condition or engine start voltage.

*2: When 210 seconds have elapsed after disconnecting the power supply connector of the master component with the engine switch on (ACC) or on (IG), this code is stored.

NOTICE:

  • Before starting troubleshooting, be sure to clear DTCs to clear codes stored due to the reasons described in the HINT above. Then, check for DTCs and troubleshoot according to the output DTCs.
  • The display and navigation module display is the master unit.
  • Be sure to clear and recheck DTCs after the inspection is completed to confirm that no DTCs are output.

WIRING DIAGRAM

INSPECTION PROCEDURE

NOTICE:

Be sure to read the Description before performing the following procedures.

PROCEDURE

1.

CHECK DISPLAY AND NAVIGATION ASSEMBLY POWER SOURCE CIRCUIT

(a) Refer to the Display and Navigation Assembly Power Source Circuit NAVIGATION / MULTI INFO DISPLAY: NAVIGATION SYSTEM: DESCRIPTION (2008 LX570) .

If the power source circuit is operating normally, proceed to the next step.

NEXT

2.

IDENTIFY COMPONENT WHICH HAS STORED THIS CODE

(a) Enter the diagnostic mode.

(b) Press the "LAN Mon" switch to change to "LAN Monitor" mode.

(c) Identify the component which has stored this code.

Component Table

Display

Component

AUDIO

Radio receiver

DSP-AMP

Stereo component amplifier

CAMERA-C

Parking assist ECU

XM

Satellite radio tuner

RSE

Television display

HINT:

"NAVI" is the component which has stored this code in the example shown in the illustration.

NEXT

3.

CHECK POWER SOURCE CIRCUIT OF COMPONENT WHICH HAS STORED THIS CODE

(a) Inspect the power source circuit of the component which has stored this code.

If the power source circuit is operating normally, proceed to the next step.

Component Table

Component

Proceed to

Radio receiver (AUDIO)

Radio receiver power source circuit AUDIO / VIDEO: AUDIO AND VISUAL SYSTEM: DESCRIPTION (2008 LX570)

Stereo component amplifier (DSP-AMP)

Stereo component amplifier power source circuit AUDIO / VIDEO: AUDIO AND VISUAL SYSTEM: DESCRIPTION (2008 LX570)

Parking assist ECU (CAMERA-C)

Parking Assist ECU power source circuit PARK ASSIST / MONITORING: WIDE VIEW FRONT MONITOR SYSTEM: DESCRIPTION (2008 LX570)

Satellite radio tuner (XM)

Satellite radio tuner power source circuit NAVIGATION / MULTI INFO DISPLAY: NAVIGATION SYSTEM: DESCRIPTION (2008 LX570)

Television display (RSE)

Television display power source circuit AUDIO / VIDEO: REAR SEAT ENTERTAINMENT SYSTEM: DESCRIPTION (2008 LX570)

NEXT

4.

INSPECT RADIO RECEIVER ASSEMBLY


(a) Disconnect the F1, F23 and F24 receiver connectors.

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

Standard Resistance:

Tester Connection

Condition

Specified Condition

F1-5 (ATX+) - F1-15 (ATX-)

Always

60 to 80 Ω

F23-9 (TX+) - F23-10 (TX-)

Always

60 to 80 Ω

F24-9 (TXM+) - F24-10 (TXM-)

Always

60 to 80 Ω
OK

5.

CHECK HARNESS AND CONNECTOR (DISPLAY AND NAVIGATION MODULE DISPLAY - COMPONENT WHICH HAS STORED THIS CODE)

HINT:

For details of the connectors, refer to Terminals of ECU NAVIGATION / MULTI INFO DISPLAY: NAVIGATION SYSTEM: TERMINALS OF ECU (2008 LX570) .

(a) Check the AVC-LAN circuit between the display and navigation module display and the component which has stored this code.

(1) Disconnect all connectors between the display and navigation module display and the component which has stored this code.

(2) Check for an open or short in the AVC-LAN circuit between the display and navigation module display and the component which has stored this code.

OK:

There is no open or short circuit.

OK

6.

REPLACE COMPONENT WHICH HAS STORED THIS CODE

(a) Replace the component which has stored this code with a normal one and check if the same problem occurs again.

OK:

Same problem does not occur.

OK