Lexus IS250 IS220d GSE20 ALE20 - NAVIGATION
CHECK MULTI-DISPLAY POWER SOURCE CIRCUIT
IDENTIFY THE COMPONENT WHICH HAS STORED THIS CODE
CHECK POWER SOURCE CIRCUIT OF COMPONENT WHICH HAS STORED THIS CODE
CHECK HARNESS AND CONNECTOR (MULTI-DISPLAY - COMPONENT WHICH HAS STORED THIS CODE)
REPLACE COMPONENT WHICH HAS STORED THIS CODE
DTC 01-D6 No Master
DTC 01-D7 Connection Check Error
DESCRIPTION
DTC No. | 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 IG). The master device has (had) been disconnected when this code is stored. | Multi-display power source circuit Power source circuit of the component which has stored this code AVC-LAN circuit between the multi-display and the component which has stored this code Component which has stored this code Multi-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:
- NOTICE:
INSPECTION PROCEDURE
- NOTICE:
- Be sure to read DESCRIPTION before performing the following procedures.
1.CHECK MULTI-DISPLAY POWER SOURCE CIRCUIT |
Refer to the multi-display power source circuit .
If the power source circuit is operating normally, proceed to the next step.
NEXT | |
2.IDENTIFY THE COMPONENT WHICH HAS STORED THIS CODE |
Enter the diagnostic mode.
Press the "LAN Mon" switch to change to "LAN Monitor" mode.
Identify the component which has stored this code.
Display | Component |
AUDIO H/U | Radio receiver |
DSP-AMP | Stereo component amplifier |
G/W | Gateway ECU |
NAVI | Navigation ECU |
CAMERA-C | Television camera ECU |
- 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 |
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 | Proceed to |
Radio receiver (AUDIO H/U) | Radio receiver power source circuit |
Stereo component amplifier (DSP-AMP) | Stereo component amplifier power source circuit |
Gateway ECU (G/W) | Gateway ECU power source circuit |
Navigation ECU (NAVI) | Navigation ECU power source circuit |
Television camera ECU (CAMERA-C) | Television camera ECU power source circuit |
NEXT | |
4.CHECK RADIO RECEIVER |
Disconnect the radio receiver connectors.
Measure the resistance according to the value(s) in the table below.
- Standard resistance:
Tester Connection Condition Specified Condition ATX+ (J66-5) -
ATX- (J66-15)Always 60 to 80 Ω TX+ (J63-9) -
TX- (J63-10)Always 60 to 80 Ω
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OK | |
5.CHECK HARNESS AND CONNECTOR (MULTI-DISPLAY - COMPONENT WHICH HAS STORED THIS CODE) |
- HINT:
- For details of the connectors, refer to "TERMINALS OF ECU" .
Referring to the AVC-LAN wiring diagram below, check the AVC-LAN circuit between the multi-display and the component which has stored this code.
Disconnect all connectors between the multi-display and the component which has stored this code.
Check for an open or short in the AVC-LAN circuit between the multi-display and the component which has stored this code.
- OK:
- There is no open or short circuit.
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OK | |
6.REPLACE COMPONENT WHICH HAS STORED THIS CODE |
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.
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OK | ||
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