- The device with a display fails and the master is switched to the audio device.
- A communication error between the sub-master (radio receiver) and master occurs.
| 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: RM00000182M030X |
| Title: NAVIGATION / MULTI INFO DISPLAY: NAVIGATION SYSTEM: DESCRIPTION (2008 LX570) | ||
|
DTC |
01-DF |
Master Error |
DESCRIPTION
|
DTC Code |
DTC Detection Condition |
Trouble Area |
|---|---|---|
|
01-DF* |
When either condition below is met: |
|
HINT:
*: 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 MODULE DISPLAY |
(a) Refer to the Display and Navigation Assembly Power Source Circuit
.
If the power source circuit is operating normally, proceed to the next step.
|
|
2. |
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 |
|
|
3. |
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 |
|
EMVN |
Display and navigation module display |
|
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.
|
|
4. |
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
.
(a) Referring to the AVC-LAN wiring diagram, 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.
|
|
5. |
CHECK HARNESS AND CONNECTOR (DISPLAY AND NAVIGATION MODULE DISPLAY - RADIO RECEIVER) |
HINT:
For details of the connectors, refer to Terminals of ECU
.
(a) Referring to the AVC-LAN wiring diagram, check the AVC-LAN circuit between the display and navigation module display and the radio receiver.
(1) Disconnect all connectors between the display and navigation module display and the radio receiver.
(2) Check for an open or short in the AVC-LAN circuit between the display and navigation module display and the radio receiver.
OK:
There is no open or short circuit.
|
|
6. |
REPLACE DISPLAY AND NAVIGATION MODULE DISPLAY |
(a) Replace the display and navigation module display with a normal one
and check if the same problem occurs again.
OK:
Same problem does not occur.
|
|
|