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Nissan-Datsun Truck Armada 2WD V8-5.6L (VK56DE) U CODE 24
3. Check continuity between display unit harness connector M93
(A) terminals 11, 22 and AV control unit harness connector
M171 (B) terminals 56, 44.
4. Check continuity between display unit harness connector M93
(A) terminals 11, 22 and ground.
Are continuity results as specified?
YES - GO TO 3.
NO - Repair harness or connector.
3.CHECK COMMUNICATION SIGNAL
1. Connect display unit connector and AV control unit connector.
2. Turn ignition switch ON.
3. Check signal between display unit harness connector M93 terminal 11 and ground with an oscilloscope or CONSULT-III.
Are voltage readings as specified?
YES - GO TO 4.
NO - Replace AV control unit. See: Accessories and Optional Equipment/Radio, Stereo, and Compact Disc/Radio/Stereo/Service and Repair/AV
Control Unit/Base Audio.
4.CHECK COMMUNICATION SIGNAL
Nissan-Datsun Truck Armada 2WD V8-5.6L (VK56DE) U CODE 25
Check signal between display unit harness connector M93 terminal
22 and ground with an oscilloscope or CONSULT-III.
Are voltage readings as specified?
YES - Inspection End.
NO - Replace display unit. See: Accessories and Optional Equipment/Radio, Stereo, and Compact Disc/Radio/Stereo/Service and Repair/Display
Unit/Base Audio.
With Navigation
U1243 DISPLAY UNIT
Description
DTC Logic
Diagnosis Procedure
Regarding Wiring Diagram information, See: Accessories and Optional Equipment/Radio, Stereo, and Compact Disc/Diagrams/Electrical
Diagrams/Bose Audio/With Navigation.
1.CHECK DISPLAY UNIT POWER SUPPLY AND GROUND CIRCUIT
Check display unit power supply and ground circuit. See: Accessories and Optional Equipment/Radio, Stereo, and Compact Disc/Testing and
Inspection/Component Tests and General Diagnostics/Power Supply And Ground Circuit/Display Unit/Bose Audio/With Navigation.
Is inspection result OK?
YES - GO TO 2.
NO - Repair malfunctioning parts.
2.CHECK CONTINUITY COMMUNICATION CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect display unit connector M168 and AV control unit connector M162.

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