Inspection Procedure

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

CHECK HARNESS AND CONNECTOR (RADIO RECEIVER - STEREO JACK ADAPTER)

Disconnect the radio receiver connector.

Fig 1: Identifying Radio Receiver Connectors (W/ DVD Player)
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
Disconnect the stereo jack adapter connector.

Fig 2: Identifying Stereo Jack Adapter Connectors
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

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

Standard Resistance

w/ DVD Player

RESISTANCE SPECIFICATION

Tester Connection	Condition	Specified Condition
Q31-5 (AUXO) - J61-6 (AUXI)	Always	Below 1 Ω
Q31-4 (ASGN) - J61-5 (ASGN)	Always	Below 1 Ω
Q31-3 (ARO) - J61-2 (ARI)	Always	Below 1 Ω
Q31-2 (ALO) - J61-3 (ALI)	Always	Below 1 Ω
Q31-5 (AUXO) - Body ground	Always	10 kΩ or higher
Q31-4 (ASGN) - Body ground	Always	10 kΩ or higher
Q31-3 (ARO) - Body ground	Always	10 kΩ or higher
Q31-2 (ALO) - Body ground	Always	10 kΩ or higher

Fig 3: Identifying Stereo Jack Adapter Connectors

w/o DVD Player

RESISTANCE SPECIFICATION

Tester Connection	Condition	Specified Condition
Q31-5 (AUXO) - J63-19 (AUXI)	Always	Below 1 Ω
Q31-4 (ASGN) - J63-16 (ASGN)	Always	Below 1 Ω
Q31-3 (ARO) - J63-15 (ARI)	Always	Below 1 Ω
Q31-2 (ALO) - J63-17 (ALI)	Always	Below 1 Ω
Q31-5 (AUXO) - Body ground	Always	10 kΩ or higher
Q31-4 (ASGN) - Body ground	Always	10 kΩ or higher
Q31-3 (ARO) - Body ground	Always	10 kΩ or higher
Q31-2 (ALO) - Body ground	Always	10 kΩ or higher

NG: REPAIR OR REPLACE HARNESS OR CONNECTOR

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