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Last Modified: 6-7-2017 |
6.8:8.0.40 |
Doc ID: RM0000017CE004X |
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Model Year Start: 2007 |
Model: Land Cruiser |
Prod Date Range: [08/2006 -
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Title: PARK ASSIST / MONITORING: REAR VIEW MONITOR SYSTEM: Display Signal Circuit between Television Camera ECU and Multi-display; 2007 MY Land Cruiser [08/2006 - ] |
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Display Signal Circuit between Television Camera ECU and Multi-display
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DESCRIPTION
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This is the display signal circuit from the multi-display controller sub-assembly to the multi-display assembly.
WIRING DIAGRAM
INSPECTION PROCEDURE
PROCEDURE
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1.
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CHECK WIRE HARNESS (NAVIGATION ECU - TELEVISION CAMERA ECU)
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(a) Disconnect the N3 and T21 ECU connectors.
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(b) Measure the resistance according to the value(s) in the table below.
Standard resistance:
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Tester Connection
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Specified Condition
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N3-2 (R) -T21-15 (R1)
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Below 1 Ω
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N3-7 (G) - T21-14(G1)
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Below 1 Ω
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N3-3 (B) -T21-13 (B1)
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Below 1 Ω
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N3-8 (SYNC) - T21-34 (SYN1)
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Below 1 Ω
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N3-1 (VR) - T21-33 (VR1)
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Below 1 Ω
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N3-6 (VG) -T21-16 (VG1)
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Below 1 Ω
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N3-2 (R) - Body ground
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10 kΩ or higher
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N3-7 (G) - Body ground
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10 kΩ or higher
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N3-3 (B) - Body ground
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10 kΩ or higher
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N3-8 (SYNC) - Body ground
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10 kΩ or higher
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N3-1 (VR) - Body ground
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10 kΩ or higher
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| NG |
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REPAIR OR REPLACE HARNESS AND CONNECTOR
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| OK |
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2.
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CHECK WIRE HARNESS (TELEVISION CAMERA ECU - MULTI-DISPLAY)
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(a) Disconnect the T21 ECU connector.
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(b) Disconnect the M6 display connector.
(c) Measure the resistance according to the value(s) in the table below.
Standard resistance:
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Tester Connection
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Specified Condition
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T21-10 (R) - M6-24 (R)
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Below 1 Ω
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T21-11 (G) - M6-25 (G)
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Below 1 Ω
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T21-12 (B) - M6-26 (B)
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Below 1 Ω
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T21-31 (SYNC) - M6-27 (SYNC)
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Below 1 Ω
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T21-32 (VR) - M6-23 (VR)
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Below 1 Ω
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T21-9 (VG) - M6-28 (VG)
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Below 1 Ω
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T21-10 (R) - Body ground
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10 kΩ or higher
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T21-11 (G) - Body ground
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10 kΩ or higher
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T21-12 (B) - Body ground
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10 kΩ or higher
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T21-31 (SYNC) - Body ground
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10 kΩ or higher
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T21-32 (VR) - Body ground
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10 kΩ or higher
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| NG |
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REPAIR OR REPLACE HARNESS AND CONNECTOR
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| OK |
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3.
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CHECK WIRE HARNESS (TELEVISION CAMERA ECU - TELEVISION CAMERA)
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(a) Disconnect the T21 ECU connector.
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(b) Disconnect the T20 camera connector.
(c) Measure the resistance according to the value(s) in the table below.
Standard resistance:
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Tester Connection
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Specified Condition
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T21-20 (CB+) - T20-4 (CB+)
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Below 1 Ω
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T21-19 (CGND) - T20-3 (CGND)
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Below 1 Ω
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T21-40 (CV+) - T20-2 (CV+)
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Below 1 Ω
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T21-39 (CV-) - T20-1 (CV-)
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Below 1 Ω
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T21-20 (CB+) - Body ground
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10 kΩ or higher
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T21-19 (CGND) - Body ground
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10 kΩ or higher
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T21-40 (CV+) - Body ground
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10 kΩ or higher
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T21-39 (CV-) - Body ground
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10 kΩ or higher
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| NG |
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REPAIR OR REPLACE HARNESS AND CONNECTOR
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| OK |
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4.
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INSPECT TELEVISION CAMERA ECU
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(a) Measure the voltage according to the value(s) in the table below.
Standard:
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Tester Connection
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Condition
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Specified Condition
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T20-4 (CB+) - T20-3 (CGND)
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Ignition switch ON, shift lever R position
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Approx. 6 V
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| NG |
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REPLACE TELEVISION CAMERA ECU
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| OK |
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PROCEED TO NEXT CIRCUIT INSPECTION SHOWN IN PROBLEM SYMPTOMS TABLE
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