DTC 01-DD

AUDIO / VISUAL: AUDIO AND VISUAL SYSTEM: 01-DD,01-E1: Master Reset
01-E1 - Voice Processing Device ON Error

DESCRIPTION





HINT
* *1: This code may be stored if the engine is started and the ignition switch is turned to start position again.
* *2: Even if no fault is present, this trouble code may be stored depending on the battery condition or engine start voltage.
* Before starting troubleshooting, be sure to clear DTCs to clear codes stored due to the reasons described in 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 DTCs after the inspection is completed to confirm that no DTCs are output.

INSPECTION PROCEDURE

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

PROCEDURE

1. CHECK RADIO RECEIVER POWER SOURCE CIRCUIT

(a) Refer to Radio Receiver Power Source Circuit Radio Receiver Power Source Circuit.

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

NEXT -- Continue to next step.

2. INSPECT RADIO RECEIVER ASSEMBLY

(a) Disconnect the R1 radio receiver assembly connector.





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

Standard Resistance:





(c) Reconnect the radio receiver assembly connector.

NG -- REPLACE RADIO RECEIVER ASSEMBLY Removal
OK -- Continue to next step.

3. IDENTIFY COMPONENT WHICH HAS STORED THIS CODE

(a) Enter the diagnostic mode.





(b) Press the preset switch "3" to change to "Detailed Information Mode".

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

Component Table





HINT
* "440 (stereo component amplifier)" is the component which has stored this code in the example shown in the illustration.
* For details of the DTC display, refer to "DTC Check/Clear" Reading and Clearing Diagnostic Trouble Codes.

NEXT -- Continue to next step.

4. CHECK COMPONENT WHICH HAS STORED THIS CODE

(a) Select the component which has stored this code.

HINT
The "Bluetooth" handsfree module is built into the radio receiver assembly. If there is a problem between the "Bluetooth" handsfree module and radio receiver assembly, replace the radio receiver assembly.

Component Table





B -- REPLACE RADIO RECEIVER ASSEMBLY Removal
A -- Continue to next step.

5. CHECK HARNESS AND CONNECTOR (RADIO RECEIVER - COMPONENT WHICH HAS STORED THIS CODE)





HINT
For details of the connectors, refer to "Terminals of ECU" Pinout Values and Diagnostic Parameters.

(a) Referring to the AVC-LAN wiring diagram below, check the AVC-LAN circuit between the radio receiver assembly and the component which has stored this code.

(1) Disconnect all connectors between the radio receiver assembly and the component which has stored this code.

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

OK:

There is no open or short circuit.

NG -- REPAIR OR REPLACE HARNESS OR CONNECTOR
OK -- Continue to next step.

6. REPLACE RADIO RECEIVER ASSEMBLY

(a) Replace the radio receiver assembly Removal.

OK:

Same problem does not occur.

NG -- REPLACE COMPONENT WHICH HAS STORED THIS CODE

OK -- END