Trouble Diagnosis Chart by Symptom

WARNING: This page is about a different car, the 2008 Nissan Quest. However, it is still accessible from the selected car via links, so may be relevant.

TROUBLE DIAGNOSIS CHART

Symptom	Suspect Systems and reference
No screen is shown.	Refer to "POWER SUPPLY AND GROUND CIRCUIT CHECK FOR MONOCHROME DISPLAY " (with monochrome display) or "POWER SUPPLY AND GROUND CIRCUIT CHECK FOR COLOR DISPLAY " (with color display). If above is normal, replace display unit.
Screen does not switch to nighttime mode after the lighting switch is turned to 1st.	Refer to "ILLUMINATION SIGNAL CHECK (WITH MONOCHROME DISPLAY) " (with monochrome display) or "ILLUMINATION SIGNAL CHECK FOR DISPLAY CONTROL UNIT " (with color display). If above is normal, replace display unit.
TRIP and FUEL ECON screen do not appear.	Refer to "IGNITION SIGNAL CHECK (WITH MONOCHROME DISPLAY) " (with monochrome display) or "IGNITION SIGNAL CHECK FOR DISPLAY CONTROL UNIT " (with color display). If above is normal, replace display unit.
Trip odometer (DIST) is not added up. Average vehicle speed (AVG) is not displayed.	Refer to "VEHICLE SPEED SIGNAL INSPECTION " (with monochrome display) or "VEHICLE SPEED SIGNAL CHECK FOR DISPLAY CONTROL UNIT " (with color display). If above is normal, replace display unit.
Average fuel consumption (AVG) is not displayed.	Refer to "VEHICLE SPEED SIGNAL INSPECTION " (with monochrome display) or "VEHICLE SPEED SIGNAL CHECK FOR DISPLAY CONTROL UNIT " (with color display). Refer to "DISPLAY UNIT CIRCUIT INSPECTION " (with monochrome display) or "CAN COMMUNICATION LINE CHECK (WITH COLOR DISPLAY) " (with color display unit). If above is normal, replace display.
Distance to empty (DTE) is not displayed.	Check if speedometer operates. If it does not operate, go to "VEHICLE SPEED SIGNAL INSPECTION " (with monochrome display) or "VEHICLE SPEED SIGNAL CHECK FOR DISPLAY CONTROL UNIT " (with color display). Check if fuel gauge operates. If it does not operate, go to "FUEL LEVEL SENSOR UNIT INSPECTION ". Refer to "DISPLAY UNIT CIRCUIT INSPECTION " (with monochrome display) or "CAN COMMUNICATION LINE CHECK (WITH COLOR DISPLAY) " (with color display unit). If above is normal, replace display unit.
Door warning screen does not appear.	Refer to "VEHICLE SPEED SIGNAL INSPECTION " (with monochrome display) or "VEHICLE SPEED SIGNAL CHECK FOR DISPLAY CONTROL UNIT " (with color display). Refer to "DISPLAY UNIT CIRCUIT INSPECTION " (with monochrome display) or "CAN COMMUNICATION LINE CHECK (WITH COLOR DISPLAY) " (with color display). If above is normal, replace display unit.
AV switch and all switch operation are not possible. (Do not start self-diagnosis.)	Refer to "POWER SUPPLY AND GROUND CIRCUIT CHECK FOR AV SWITCH ". Refer to "AV SWITCH SELF-DIAGNOSIS FUNCTION ". Refer to "AV COMMUNICATION LINE CHECK (WITH MONOCHROME DISPLAY) " (with monochrome display) or "AV COMMUNICATION LINE CHECK (BETWEEN DISPLAY CONTROL UNIT AND AV SWITCH) " (with color display). If above is normal, replace display unit.
Audio operation is not possible.	Refer to "AV SWITCH SELF-DIAGNOSIS FUNCTION ". Refer to "AUDIO COMMUNICATION LINE CHECK (WITH MONOCHROME DISPLAY) " (with monochrome display) or "AUDIO COMMUNICATION LINE CHECK (BETWEEN DISPLAY CONTROL UNIT AND AUDIO UNIT) " (with color display).
Previous vehicle conditions are not stored.	Refer to "PREVIOUS VEHICLE CONDITIONS ARE NOT STORED ".