Display Signal Circuit between Multi-display and Television Camera Assembly: Procedure

CHECK HARNESS AND CONNECTOR (MULTI-DISPLAY - TELEVISION CAMERA ASSEMBLY)

Disconnect the E63 connector from the multi-display.
Disconnect the R15 connector from the television camera assembly.

Fig 1: View Of E63 Connector And Multi-Display
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Measure the resistance according to the value(s) in the table below.

Standard resistance

Tester connection (Terminal No.)	Condition	Specified condition
CB+ (R15-4) - CA+ (E63-13)	Always	Below 1 Ω
CGND (R15-3) - CGND (E63-14)	Always	Below 1 Ω
CV+ (R15-2) - V+ (E63-27)	Always	Below 1 Ω
CV- (R15-1) - V- (E63-28)	Always	Below 1 Ω
CB+ (R15-4) - Body ground	Always	10 kΩ or higher
CGND (R15-3) - Body ground	Always	10 kΩ or higher
CV+ (R15-2) - Body ground	Always	10 kΩ or higher
CV- (R15-1) - Body ground	Always	10 kΩ or higher

NG → REPAIR OR REPLACE HARNESS OR CONNECTOR

OK: Go to next step

INSPECT MULTI-DISPLAY

Reconnect the multi-display E63 connector.

Fig 2: Identifying E63 Connector And Multi-Display
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Measure the voltage according to the value(s) in the table below.

Standard voltage

Tester connection	Condition	Specified condition
CB+ (R15-4) - CGND (R15-3)	Engine switch on (IG) Shift lever R position	Approx. 6 V

NG → REPLACE MULTI-DISPLAY

OK: Go to next step

INSPECT TELEVISION CAMERA ASSEMBLY

Reconnect the television camera assembly R15 connector.

Fig 3: Identifying R15 Camera Assembly Connector
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

Check the waveform of the television camera assembly using an oscilloscope.

Standard waveform

Tester connection	Condition	Specified condition
CV+ (R15-2) - CV- (R15-1)	Engine switch on (IG) Shift lever R position	Shown in the illustration

Fig 4: Identifying Oscilloscope Waveform

NG → REPLACE TELEVISION CAMERA ASSEMBLY

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