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.

INSPECT RADIO RECEIVER

Disconnect the K4 and K22* receiver connectors.

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

Standard resistance

TESTER CONNECTION SPECIFIED CONDITION

Tester Connection	Condition	Specified Condition
K4-5 (ATX+) - K4-15 (ATX-)	Always	60 to 80 Ω
K22-9 (TXM+) - K22-10 (TXM-)*	Always	60 to 80 Ω
HINT: *: w/ Rear Seat Entertainment System

Result:

RESULT REFERENCE

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

B: REPLACE RADIO RECEIVER (see REMOVAL )

C: REPLACE RADIO RECEIVER (see REMOVAL )

Fig 1: Identifying K4 And K22 Connectors Terminals

A: Go to next step.

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

Fig 2: AVC-LAN Wiring Diagram
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

HINT:

For details of the connectors, refer to the "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 all AVC-LAN circuits.
    OK: There is no open or short circuit.
NG: REPAIR OR REPLACE HARNESS OR CONNECTOR

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