Inspection Procedure

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

CHECK NAVIGATION RECEIVER

Disconnect the K18 and K8 receiver connectors.

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

Standard resistance

NAVIGATION RECEIVER TESTER CONNECTION SPECIFIED CONDITION

Tester Connection	Condition	Specified Condition
K18-5 (ATX+) - K18-15 (ATX-)	Always	60 to 80 Ω
K8-9 (TXM+) - K8-10 (TXM-)*	Always	60 to 80 Ω
HINT: *: w/ Rear Seat Entertainment System

Fig 1: Identifying K18 And K8 Receiver Connectors

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

Result

NAVIGATION RECEIVER RESULT CHART

Result	Proceed to
OK	A
NG (for Column Shift Type)	B
NG (for Floor Shift Type)	C

B: REPLACE NAVIGATION RECEIVER (see REMOVAL (For Column Shift Type) )

C: REPLACE NAVIGATION RECEIVER (see REMOVAL (For Floor Shift Type) )

A: Go to Next Step

CHECK HARNESS AND CONNECTOR
HINT:

For details of the connectors, refer to "TERMINALS OF ECU " .
1. Referring to the AVC-LAN wiring diagram below, check all AVC-LAN circuits.
  1. Disconnect all connectors in all AVC-LAN circuits.
  2. Check for an open or short in the AVC-LAN circuit.
    OK: There is no open or short circuit.
    
    Fig 2: AVC-LAN Wiring Diagram (W/O Rear Set Entertainment System)
    Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    
    Fig 3: AVC-LAN Wiring Diagram (W/ Rear Set Entertainment System)
    Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
NG: REPAIR OR REPLACE HARNESS OR CONNECTOR

OK: PROCEED TO NEXT CIRCUIT INSPECTION SHOWN IN PROBLEM SYMPTOMS TABLE