Inspection Procedure

CHECK HARNESS AND CONNECTOR (RADIO RECEIVER - TELEVISION DISPLAY ASSEMBLY)

Disconnect the radio receiver connector R32 and television display assembly connector R14.
Measure the resistance according to the value(s) in the table below.

Standard resistance

RESISTANCE SPECIFICATION

Tester connection	Condition	Specified condition
VV+ - NTSC	Always	Below 1 Ω
VV- -SGN1	Always	Below 1 Ω
VA-SLD	Always	Below 1 Ω
VV+ - Body ground	Always	10 kΩ or higher
VV- - Body ground	Always	10 kΩ or higher

NG: REPAIR OR REPLACE HARNESS OR CONNECTOR

Fig 1: Disconnecting Radio Receiver Connector R32 And Television Display Assembly Connector R14

Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.

OK: Go to next step

INSPECT TELEVISION DISPLAY ASSEMBLY (OUTPUT SIGNAL)

Reconnect the television display assembly connector R14.

Measure the waveform according to the table below.

Fig 2: Connecting Radio Receiver Connector R32

Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.

TESTER CONNECTION AND SPECIFIED CONDITION

Tester connection	Condition	Specified condition
VV+ - Body ground	DVD display is ON	A waveform synchronized with display signals is output

HINT:

The waveform pattern may differ from that shown in the illustration below due to differences in oscilloscope setting. A normal television display assembly operating condition can be determined if any waveform is output.

Reference: Oscilloscope waveform
1. Terminal: VV+ - Body ground Setting: 200 mV/DIV., 10 μs/DIV. Condition: DVD display is ON.
NG: REPLACE TELEVISION DISPLAY ASSEMBLY

Fig 3: Waveform Graph
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.

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