Nissan Maxima Service and Repair Manual: Vertical synchronizing (VP) signal circuit
Nissan Maxima Service and Repair Manual / Driver information & multimedia / Audio, visual & navigation system / DTC/circuit diagnosis / Vertical synchronizing (VP) signal circuit
Description
In composite image (AUX image, camera image), transmit the vertical synchronizing (VP) signal and horizontal synchronizing (HP) signal from display unit to AV control unit so as to synchronize the RGB images displayed with AV control unit, such as the image quality adjusting menu, etc.
Diagnosis Procedure
1.CHECK CONTINUITY VERTICAL SYNCHRONIZING (VP) SIGNAL CIRCUIT
- Turn ignition switch OFF.
- Disconnect display unit connector M141 and AV control unit connector M117.
- Check continuity between display unit harness connector M141 (A) terminal 20 and AV control unit harness connector M117 (B) terminal 57.
- Check continuity between display unit harness connector M141 (A) terminal 20 and ground
2.CHECK VERTICAL SYNCHRONIZING (VP) SIGNAL
- Connect display unit connector M141 and AV control unit connector M117.
- Turn ignition switch ON.
- Check signal between display unit harness connector M141 terminal 20 and ground.
