Inspection Procedure

1. Enter the diagnostic mode.
2. Press the "LAN Mon" switch to change to "LAN Monitor" mode.
   Fig 1: Identifying "LAN Monitor"Display Screen

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
3. Identify the component shown by the sub-code.

   HINT:

   • "110 (multi-display)" is the component shown by the sub-code in the example shown in the illustration.
   • The sub-code will be indicated by its physical address.
   • For the component list, refer to "DIAGNOSIS DISPLAY DETAILED DESCRIPTION " .

1. 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
   
   

   Display	Proceed to
   Radio receiver (190)	RADIO RECEIVER POWER SOURCE CIRCUIT (
   Stereo component amplifier (440)	STEREO COMPONENT AMPLIFIER POWER SOURCE CIRCUIT
   Multi-display (110)*2, *5	MULTI-DISPLAY POWER SOURCE CIRCUIT
   Display and navigation assembly (118)*6	DISPLAY AND NAVIGATION ASSEMBLY POWER SOURCE CIRCUIT
   Navigation ECU (178)*5	NAVIGATION ECU POWER SOURCE CIRCUIT
   Clock (1D6)	CLOCK POWER SOURCE CIRCUIT
   Television display (1F6)*1	TELEVISION DISPLAY POWER SOURCE CIRCUIT
   Parking assist ECU (1AC)*3	ECU POWER SOURCE CIRCUIT
   Rear power seat module switch (1C0)	REAR SEAT CONTROL SWITCH POWER SOURCE CIRCUIT
   Satellite radio tuner (1F1)*4	SATELLITE RADIO TUNER POWER SOURCE CIRCUIT
   HINT: *1: w/ Rear Seat Entertainment System *2: w/o Navigation System (w/ Multi-display) *3: w/ Advanced Parking Guidance System *4: w/ Satellite Radio Tuner *5: w/ Navigation System (for DVD) *6: w/ Navigation System (for HDD)

Fig 2: Identifying Radio Receiver Connector Terminal

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

1. Disconnect the L53, L51, L57 and L52 receiver connectors.
2. Measure the resistance according to the value(s) in the table below.

   Standard resistance: 

   for CD changer models 

   TESTER CONNECTION SPECIFIED CONDITION CHART
   
   

   Tester Connection	Condition	Specified Condition
   L53-9 (TXM+) - L53-10 (TXM-)	Always	60 to 80 Ω
   L51-5 (ATX+) - L51-15 (ATX-)	Always	60 to 80 Ω
   L57-9 (TX+) - L57-10 (TX-)	Always	60 to 80 Ω

   for DVD changer models 

   TESTER CONNECTION SPECIFIED CONDITION CHART
   
   

   Tester Connection	Condition	Specified Condition
   L53-9 (TXM+) - L53-10 (TXM-)	Always	60 to 80 Ω
   L51-5 (ATX+) - L51-15 (ATX-)	Always	60 to 80 Ω
   L52-9 (TX+) - L52-10 (TX-)	Always	60 to 80 Ω

NG: REPLACE RADIO RECEIVER ASSEMBLY (See  REMOVAL   ) 

OK: GO TO NEXT STEP 

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 "TERMINALS OF ECU " .

1. Referring to the AVC-LAN wiring diagram, check the AVC-LAN circuit between the disc player and the component shown by the sub-code.
   1. Disconnect all connectors between the disc player and the component shown by the sub-code.
   2. Check for an open or short in the AVC-LAN circuit between the disc player and the component shown by the sub-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 

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 TELEVISION DISPLAY ASSEMBLY (See  TELEVISION DISPLAY (FOR LONG BODY)   ) 

OK: END