Toyota Sienna Service Manual: Master Reset/ Voice Processing Device ON Error
DTC 01-DD Master Reset
DTC 01-E1 Voice Processing Device ON
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 and navigation assembly power source
circuit
- AVC-LAN circuit between the radio and navigation
assembly and the component which has stored this
code
- Radio and navigation assembly
- Component which has stored this code
|
01-E1
*2 |
The AMP device records that the AMP output does not
function even while the source device is operating. |
HINT:
- *1: This code may be stored if the engine is started and the
ignition switch is turned to the 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.
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 radio and navigation 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.
1 CHECK RADIO AND NAVIGATION ASSEMBLY POWER SOURCE CIRCUIT
Refer to the radio and navigation assembly power source circuit.
If the power source circuit is operating normally, proceed to
the next step
2 INSPECT RADIO AND NAVIGATION ASSEMBLY
- Disconnect the radio and navigation assembly
connectors.
- Measure the resistance according to the value(s) in the
table below.
Standard resistance
3 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.
Component Table:
HINT:
"NAVI" is the component which has stored this code in
the example shown in the illustration.
4 CHECK HARNESS AND CONNECT
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 radio and navigation
assembly and the component which has stored this
code.
- Disconnect all connectors between the radio and
navigation assembly and the component which has
stored this code.
- Check for an open or short in the AVC-LAN circuit
between the radio and navigation assembly and the
component which has stored this code.
OK:
There is no open or short circuit.
5 REPLACE RADIO AND NAVIGATION ASSEMBLY
- Replace the radio and navigation assembly with a
normal one and check if the same problem occurs again.
OK:
Same problem does not occur.
END
DTC 01-DC Transmission Error
DESCRIPTION
DTC No.
DTC Detection Condition
Trouble Area
01-DC
*1
Transmission to component shown by sub-code failed.
(Detec ...
DTC 01-DF Master Error
DESCRIPTION
DTC No.
DTC Detection Condition
Trouble Area
01-DF
*1
The device with a display fails and the master is
switch ...
Other materials:
Parts location
SYSTEM DIAGRAM
...
Engine
ON-VEHICLE INSPECTION
1. INSPECT ENGINE COOLANT
(a) Inspect the engine coolant (See page CO-1).
2. INSPECT ENGINE OIL
(a) Inspect the engine oil (See page LU-1).
3. INSPECT BATTERY
(a) Inspect the battery (See page CH-5).
4. INSPECT AIR CLEANER FILTER ELEMENT SUBASSEMBLY
(a) Remove the air c ...
Low pitched horn
COMPONENTS
REMOVAL
1. REMOVE FRONT BUMPER COVER
ET-3
2. REMOVE LOW PITCHED HORN
Disconnect the connector.
Remove the bolt and horn.
INSPECTION
1. INSPECT LOW PITCHED HORN
Apply battery voltage and check operation of the
horn, as shown in the table.
Stan ...