Inspection Procedure

WARNING: This page is about a different car, the 2008 Lexus LS 600hL. However, it is still accessible from the selected car via links, so may be relevant.

CHECK MULTI-DISPLAY CONTROLLER

Disconnect the R32 controller connector.

Measure the voltage according to the value(s) in the table below

Standard voltage

TESTER CONNECTION SPECIFIED CONDITION CHART

Tester Connection	Switch Condition	Specified Condition
R32-19 (MUT4) - Body ground	Turn power switch ON (ACC), disc player is playing → Changing modes	3.5 V or higher → Below 1 V

Fig 1: Identifying R32 Controller Connector

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

NG: Go to step 2

OK: REPLACE MULTI-DISPLAY CONTROLLER (See REMOVAL )

CHECK HARNESS AND CONNECTOR (REAR SEAT CONSOLE BOX - MULTI-DISPLAY CONTROLLER)

Disconnect the R16 box connector
Disconnect the R32 controller connector.

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

Standard resistance

TESTER CONNECTION SPECIFIED CONDITION CHART

Tester Connection	Condition	Specified Condition
R16-14 (MUTE) - R32-19 (MUT4)	Always	Below 1 Ω
R16-14 (MUTE) - Body ground	Always	10 kΩ or higher

Fig 2: Identifying R16 And R32 Connector Terminals (Rear Seat Console Box - Multi-Display Controller)

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

NG: REPAIR OR REPLACE HARNESS OR CONNECTOR

OK: Go to next step

INSPECT REAR SEAT CONSOLE BOX

Fig 3: Inspecting Rear Seat Console Box

Disconnect the box connector

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

Standard resistance

TESTER CONNECTION SPECIFIED CONDITION CHART

Tester Connection	Condition	Specified Condition
B-6 (MUTE) - E-14 (MUTE)	Always	Below 1 Ω

NG: REPLACE REAR SEAT CONSOLE BOX (See REMOVAL )

OK: REPLACE DISC PLAYER (See REMOVAL )