Inspection Procedure

WARNING: This page is about a different car, the 2007 Toyota RAV4. However, it is still accessible from the selected car via links, so may be relevant.

IDENTIFY THE COMPONENT SHOWN BY THE SUB-CODE
1. Enter the diagnostic mode.
  
  Fig 1: Diagnostic Mode For Radio Receiver Communication Error
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
2. Press the preset switch "2" to change to "Detailed Information Mode".
3. Identify the component shown by the sub-code.
  HINT:
  - "190 (radio receiver)" is the component shown by the sub-code in the example shown in the illustration.
  - For details of the DTC display, refer to the "DTC CHECK/CLEAR " .

CHECK COMPONENT SHOWN BY SUB-CODE

Select the component shown by sub-code.

HINT:

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

Component Table:

COMPONENT CHART

Component	Proceed to
"Bluetooth" handsfree module (19D)	A
Except "Bluetooth" handsfree module	B

A: REPLACE RADIO RECEIVER ASSEMBLY

B: GO to next step

CHECK POWER SOURCE CIRCUIT OF COMPONENT SHOWN BY SUB-CODE

Inspect the power source circuit of the component shown by the sub-code.

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

Component table:

COMPONENT CHART

Component	Proceed to
Television display assembly (1B0)	TELEVISION DISPLAY POWER SOURCE CIRCUIT
Stereo component amplifier (440)	STEREO COMPONENT AMPLIFIER POWER SOURCE CIRCUIT

INSPECT RADIO RECEIVER ASSEMBLY

Disconnect the E62 receiver connector.

Measure the resistance of the receiver.

Standard resistance

STANDARD RESISTANCE SPECIFICATIONS

Tester Connection	Specified Condition
E62-5 (ATX+) - E62-15 (ATX-)	60 to 80 Ω

NG: REPLACE RADIO RECEIVER ASSEMBLY

Fig 2: Identifying E62 Connector Terminals

OK: GO to next step

CHECK HARNESS AND CONNECTOR (RADIO RECEIVER - COMPONENT SHOWN BY SUB-CODE)
HINT:
- Start the check from the circuit that is near the component shown by the sub-code first.
- 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 shown by the sub-code.
  1. Check for an open or short in the AVC-LAN circuit between the radio receiver and the component shown by the sub-code.
    OK:
    
    There is no open or short circuit.
    
    Fig 3: AVC-LAN Wiring Diagram
    Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    
    NG: REPAIR OR REPLACE HARNESS OR CONNECTOR
    
    OK: GO to next step
REPLACE COMPONENT SHOWN BY SUB-CODE
1. Replace the component shown by the sub-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