Inspection Procedure

WARNING: This page is about a different car, the 2008 Toyota RAV4. However, it is still accessible from the selected car via links, so may be relevant.

NOTE: Be sure to read DESCRIPTION before performing the following procedures.

CHECK RADIO RECEIVER POWER SOURCE CIRCUIT
1. Refer to the RADIO RECEIVER POWER SOURCE CIRCUIT .
  If the power source circuit is operating normally, proceed to the next step.

IDENTIFY THE COMPONENT WHICH HAS STORED THIS CODE

Enter the diagnostic mode.

Fig 1: Identifying Diagnostic Mode - Service Check Mode And Detailed Information Mode
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
Press the preset switch "3" to change to "Detailed Information Mode".

Identify the component which has stored this code.

Component table:

COMPONENT CHART

Component	Physical address
Stereo component amplifier	440
Television display assembly	1B0

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 the "DTC CHECK/CLEAR " .

CHECK POWER SOURCE CIRCUIT OF COMPONENT WHICH HAS STORED THIS CODE

Inspect the power source circuit of the component which has stored this code.

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

Component table:

COMPONENT CHART

Component	Proceed to
Stereo component amplifier	Stereo component amplifier power source circuit (See STEREO COMPONENT AMPLIFIER POWER SOURCE CIRCUIT )
Television display assembly	Television display assembly power source circuit (See TELEVISION DISPLAY POWER SOURCE CIRCUIT )

INSPECT RADIO RECEIVER ASSEMBLY

Disconnect the E62 and E64* receiver connectors.

Measure the resistance of the receiver.

Standard resistance

TESTER CONNECTION SPECIFIED CONDITION CHART

Tester Connection	Specified Condition
E62-5 (ATX+) - E62-15 (ATX-)	60 to 80 Ω
E64-9 (TXM+) - E64-10 (TXM-)*	60 to 80 Ω
HINT: *: with Rear seat entertainment system

Fig 2: Identifying E62 And E64 Receiver Connectors

NG: REPLACE RADIO RECEIVER ASSEMBLY

OK: Go to Next Step

CHECK HARNESS AND CONNECTOR (RADIO RECEIVER - COMPONENT WHICH HAS STORED THIS CODE)
HINT:

For details of the connectors, refer to the "TERMINALS OF ECU " .
1. Referring to the AVC-LAN wiring diagram below, check the AVC-LAN circuit between the radio receiver and the component which has stored this code.
  1. Check for an open or short in the AVC-LAN circuit between the radio receiver and the component which has stored this code.
    OK: There is no open or short circuit.
    
    Fig 3: Identifying AVC-LAN Wiring Diagram
    Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
NG: REPAIR OR REPLACE HARNESS OR CONNECTOR

OK: Go to Next Step
REPLACE COMPONENT WHICH HAS STORED THIS CODE
1. Replace the component which has stored this code with a normal one and check if the same problem occurs again.
  OK: Same problem does not occur.
NG: REPLACE RADIO RECEIVER ASSEMBLY

OK: END