Audio and Visual System

AUDIO / VISUAL: AUDIO AND VISUAL SYSTEM: 01-DD: Master Reset

DTC 01-DD - Master Reset

DTC 01-E1 - Voice Processing Device ON Error

DESCRIPTION





HINT: *: Even if no fault is present, this trouble code may be stored depending on the battery condition or hybrid system start voltage.
NOTICE:
- Before starting troubleshooting, be sure to clear DTCs to erase codes stored due to the reasons described in the HINT above. Then, check for DTCs and troubleshoot according to the output DTCs.
- The multi-display 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
NOTE: Be sure to read DESCRIPTION before performing the following procedures.

PROCEDURE

1. CHECK MULTI-DISPLAY POWER SOURCE CIRCUIT
(a) Refer to the multi-display power source circuit Multi-Display Power Source Circuit.
If the power source circuit is operating normally, proceed to the next step.
NEXT -- Continue to next step.

2. INSPECT RADIO RECEIVER




(a) for 9 Speaker System:
Disconnect the R5 and R6 receiver connectors.
(b) for 6 Speaker System:
Disconnect the R5 receiver connector.
(c) Measure the resistance of the receiver.
Standard resistance:





HINT:
- *1: for 6 speaker system
- *2: for 9 speaker system

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

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





HINT: "G/W" is the component which has stored this code in the example shown in the illustration.

NEXT -- Continue to next step.

4. CHECK WIRE HARNESS (MULTI-DISPLAY - COMPONENT WHICH HAS STORED THIS CODE)
HINT: For details of the connectors, refer to the "TERMINALS OF ECU" Pinout Values and Diagnostic Parameters.
(a) 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.
(1) Disconnect all connectors between the multi-display and the component which has stored this code.
(2) 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.





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

5. REPLACE MULTI-DISPLAY
(a) Replace the multi-display with a normal one and check if the same problem occurs again.
OK:
Same problem does not occur.
NG -- REPLACE COMPONENT WHICH HAS STORED THIS CODE
OK -- END