AUDIO / VIDEO: AUDIO AND VISUAL SYSTEM: DESCRIPTION (2008 Sequoia)

Last Modified: 11-29-2007		1.6 C
Service Category: Audio/Visual/Telematics	Section: Audio/Video
Model Year: 2008	Model: Sequoia	Doc ID: RM00000183W023X
Title: AUDIO / VIDEO: AUDIO AND VISUAL SYSTEM: DESCRIPTION (2008 Sequoia)

DTC

01-DD

Master Reset

DTC

01-E1

Voice Processing Device ON Error

DESCRIPTION

DTC Code	DTC Detection Condition	Trouble Area
01-DD*1	The device that should be the master has been disconnected after engine start.	Radio receiver power source circuit AVC-LAN circuit between the radio receiver assembly and the component which has stored this code Radio receiver 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 operates.

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.

NOTICE:

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 .

HINT:

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

2.	INSPECT RADIO RECEIVER ASSEMBLY

(a) Disconnect the I4 and I8* radio receiver assembly connectors.

HINT:

*: w/ Rear Seat Entertainment System

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

Standard Resistance:

Tester Connection	Condition	Specified Condition
I4-5 (ATX+) - I4-15 (ATX-)	Always	60 to 80 Ω
I8-9 (TXM+) - I8-10 (TXM-)*	Always	60 to 80 Ω

HINT:

*: w/ Rear Seat Entertainment System

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".

Component Table

Component	Physical Address
Stereo component amplifier	440
"Bluetooth" handsfree module	19D
Television display*	1B0

HINT:

*: w/ Rear Seat Entertainment System

"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" .

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

Component	Proceed to
Except "Bluetooth" handsfree module	A
"Bluetooth" handsfree module (for Column Shift Type)	B

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

HINT:

For details of the connectors, refer to "Terminals of ECU" .

(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.

6.	REPLACE RADIO RECEIVER ASSEMBLY

(a) Replace the radio receiver assembly .

OK:

Same problem does not occur.