DESCRIPTION
INSPECTION PROCEDURE
CHECK RADIO RECEIVER POWER SOURCE CIRCUIT
INSPECT RADIO RECEIVER ASSEMBLY
IDENTIFY COMPONENT WHICH HAS STORED THIS CODE
CHECK COMPONENT SHOWN BY SUB-CODE
CHECK HARNESS AND CONNECTOR (AVC-LAN CIRCUIT)
REPLACE RADIO RECEIVER ASSEMBLY
CLEAR DTC
RECHECK FOR DTC
DTC 01-DD Master Reset
DTC 01-E1 Voice Processing Device ON Error
DESCRIPTION
| DTC No. | DTC Detection Condition | Trouble Area |
01-DD
*1 | The device that should be the master has been disconnected after the engine starts. | Radio receiver assembly power source circuit
AVC-LAN circuit between the radio receiver assembly and component which has stored this code
Radio receiver assembly
Component which has stored this code
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01-E1
*2 | The AMP device stores that the AMP output does not function even while the source device operates. |
*1: If the engine switch is turned off after idling for 60 seconds, this DTC may be stored when the engine is started again.
*2: Even if no fault is present, this DTC may be stored depending on the battery condition or engine start voltage.
Before starting troubleshooting, be sure to clear the DTCs stored due to the reasons described in the HINT above. Then, check for DTCs and troubleshoot according to the output DTCs.
The radio receiver assembly is the master unit.
Be sure to clear and recheck for the DTCs after the inspection is completed to confirm that no DTCs are output.
INSPECTION PROCEDURE
- Be sure to read Description before performing the following procedure.
| 1.CHECK RADIO RECEIVER POWER SOURCE CIRCUIT |
- Refer to Radio Receiver Power Source Circuit ().
If the power source circuit is operating normally, proceed to the next step.
| 2.INSPECT RADIO RECEIVER ASSEMBLY |
Disconnect the F1 and F55 radio receiver assembly connectors.
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 |
| F55-9 (TXM+) - F55-10 (TXM-) | Always | 60 to 80 Ω |
Text in Illustration| *1 | Component without harness connected
(Radio Receiver Assembly) |
| *2 | Component without harness connected
(Radio Receiver Assembly) |
| | REPLACE RADIO RECEIVER ASSEMBLY ()
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| 3.IDENTIFY COMPONENT WHICH HAS STORED THIS CODE |
Enter diagnostic mode.
Press preset switch "2" to change the mode to "Detailed Information Mode".
Identify the component which has stored this code.
Component Table| Component | Physical Address |
| Stereo component amplifier assembly | 440 |
| Radio receiver assembly | 190 |
| Multi-media interface ECU | 388 |
"P440" set by the stereo component amplifier assembly is shown in the preceding illustration as an example.
For details of the DTC display, refer to DTC Check/Clear ().
| 4.CHECK COMPONENT SHOWN BY SUB-CODE |
Select the component shown by the sub-code.
Component Table| Component | Proceed to |
| Except radio receiver assembly | A |
| Radio receiver assembly (190) | B |
| | REPLACE RADIO RECEIVER ASSEMBLY ()
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| 5.CHECK HARNESS AND CONNECTOR (AVC-LAN CIRCUIT) |
- For details of the connectors, refer to Terminals of ECU ().
Referring to the following AVC-LAN wiring diagram, check the AVC-LAN circuit between the radio receiver assembly and component which has stored this code.
Disconnect all connectors between the radio receiver assembly and component which has stored this code.
Check for an open or short in the AVC-LAN circuit between the radio receiver assembly and component which has stored this code.
- OK:
- There is no open or short circuit.
| | REPAIR OR REPLACE HARNESS OR CONNECTOR |
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| 6.REPLACE RADIO RECEIVER ASSEMBLY |
Replace the radio receiver assembly with a known good one.
Recheck for DTCs and check if the same problem occurs again.
- OK:
- Malfunction disappears.
| | REPLACE COMPONENT WHICH HAS STORED THIS CODE |
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