Inspection Procedure

WARNING: This page is about a different car, the 2006 Toyota 4Runner. However, it is still accessible from the selected car via links, so may be relevant.

INSPECT RADIO RECEIVER

Disconnect the radio receiver connector.

Measure the resistance according to the value(s) in STANDARD RESISTANCE .

Standard resistance

STANDARD RESISTANCE

Tester Connection

Condition

Specified Condition

ATX+ (R1-5) - ATX-(R1-15) (⁽¹⁾)

Always

60 to 80

TXM+ (R4-9) - TXM-(R4-10)

Always

60 to 80

⁽¹⁾	10 Speaker System

Fig 1: Disconnecting Radio Receiver Connector

NG: REPLACE RADIO RECEIVER

OK: GO TO NEXT STEP.

CHECK HARNESS AND CONNECTOR
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 circuits.
  1. Check for an open or short in all AVC-LAN circuits.
    OK: There is no open or short circuit.
    
    Fig 2: AVC-LAN Wiring Diagram
    Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
NG: REPAIR OR REPLACE HARNESS OR CONNECTOR

OK: RETURN TO THE ORIGINAL INSPECTION BECAUSE THE CHECK RESULT IS NORMAL