NAVI Screen is Rolling

WARNING: This page is about a different car, the 2007 Nissan Quest. However, it is still accessible from the selected car via links, so may be relevant.

CHECK HARNESS

Turn ignition switch OFF.
Disconnect NAVI control unit connector B505 and display control unit connector M95.

Check continuity between NAVI control unit and display control unit.

TERMINALS CONTINUITY CHART

Terminals				Continuity
B		A
Connector	Terminal	Connector	Terminal
NAVI control unit: B505	48	Display control unit: M95	43	Yes
NAVI control unit: B505	49	Display control unit: M95	41	Yes

Check continuity between NAVI control unit and ground.

TERMINALS CONTINUITY CHART

Terminals			Continuity
B		-
Connector	Terminal	-
NAVI control unit: B505	48	Ground	No
NAVI control unit: B505	49	Ground	No

Fig 1: Checking Continuity Between NAVI Control Unit And Display Control Unit

OK or NG

OK: GO TO 2.

NG: Repair harness.

CHECK RGB SYNCHRONIZING SIGNAL
1. Connect NAVI control unit connector and display control unit connector.
2. Turn ignition switch ON.
3. Check signal between NAVI control unit connector B505 terminals 48 and 49 with CONSULT-II or oscilloscope.
  48 - 49 : Refer to "TERMINALS AND REFERENCE VALUE FOR NAVI CONTROL UNIT ".
  
  Fig 2: Checking Signal Between NAVI Control Unit Connector B505 Terminals 48 And 49
OK or NG

OK: GO TO 3.

NG: Replace NAVI control unit. Refer to "NAVI CONTROL UNIT ".

CHECK HARNESS

Turn ignition switch OFF.
Disconnect display control unit connector M95 and display unit connector M93.

Check continuity between display control unit and display unit.

TERMINALS CONTINUITY CHART

Terminals				Continuity
Display control unit		Display unit
Connector	Terminal	Connector	Terminal
M95	56	M93	19	Yes
M95	49	M93	21	Yes

Fig 3: Checking Continuity Between Display Control Unit And Display Unit

Check continuity between display control unit and ground.

TERMINALS CONTINUITY CHART

Terminals			Continuity
Display control unit		-
Connector	Terminal	-
M95	56	Ground	No
M95	49	Ground	No

OK or NG

OK: GO TO 4.

NG: Repair harness.

CHECK RGB SYNCHRONIZING SIGNAL
1. Connect display control unit connector and display unit connector.
2. Turn ignition switch ON.
3. Check signal between display unit connector M93 terminals 19 and 21 with CONSULT-II or oscilloscope.
  19 - 21 : Refer to "TERMINALS AND REFERENCE VALUE FOR DISPLAY UNIT ".
  
  Fig 4: Checking Signal Between Display Unit Connector M93 Terminals 19 And 21
OK or NG

OK: Replace display unit. Refer to "DISPLAY UNIT ".

NG: Replace display control unit. Refer to "DISPLAY CONTROL UNIT ".