Self-Diagnosis Result

WARNING: This page is about a different car, the 2004 Nissan Quest. However, it is still accessible from the selected car via links, so may be relevant.

Quick reference table

Select an malfunctioning diagnosis No. in the diagnosis result quick reference table.
Find estimated malfunctioning system in the diagnosis No. table and perform check by referring to WIRING DIAGRAM - COMM - .
Turn the ignition switch OFF and perform self-diagnosis again.

SCREEN SWITCH SPECIFICATION

Screen switch

Diagnosis No.

Switch color

Center control unit⁽¹⁾

GPS antenna

Red

Gray

Yellow

⁽¹⁾	Center Control unit = NAVI control unit

CAUTION:

When AV switch has a malfunction, you cannot start.
When display unit has a malfunction, you cannot start.
Check the following when the self-diagnosis mode cannot be used.

AV communication line between display control unit and AV switch. Refer to AV COMMUNICATION LINE CHECK (BETWEEN DISPLAY CONTROL UNIT AND AV SWITCH) .
AV switch power supply and ground circuit. Refer to POWER SUPPLY AND GROUND CIRCUIT CHECK FOR AV SWITCH .
Display communication line between display control unit and display unit. Refer to DISPLAY COMMUNICATION LINE CHECK (BETWEEN DISPLAY CONTROL UNIT AND DISPLAY UNIT) .
Display unit power supply and ground circuit. Refer to POWER SUPPLY AND GROUND CIRCUIT CHECK FOR DISPLAY UNIT .

Self-diagnosis codes

POSSIBLE CAUSE

Diagnosis No.	Possible cause	Reference
1	NAVI control unit malfunction	Refer to REMOVAL AND INSTALLATION OF NAVI CONTROL UNIT
2	No map DVD-ROM is inserted in the NAVI control unit.	Refer to CAN COMMUNICATION LINE CHECK
3	When "DVD-ROM error. Please check disc." is shown. Eject map DVD-ROM and check if it is compatible with the system. Check ejected DVD-ROM for dirt, damage, and warpage. If no error is found, insert a known good map DVD-ROM of the same type and perform self-diagnosis again. If same result is shown, the NAVI control unit is malfunctioning, if result is normal, the map DVD-ROM is malfunctioning.	Refer to CAN COMMUNICATION LINE CHECK
4	If "Error found in DVD-ROM or DVD-ROM driver in control unit. Please perform diagnosis in accordance with service manual" is shown, carry out same inspection as diagnosis No. 3.	Refer to CAN COMMUNICATION LINE CHECK
5	GPS antenna system Visually check for a broken wire in the GPS antenna coaxial cable. Disconnect GPS antenna connector, and make sure approximately 5V is supplied from the NAVI control unit. If not, the NAVI control unit is malfunctioning. If 5V is supplied, replace the GPS antenna. If the connection is still malfunction after the replacement of the GPS antenna, the NAVI control unit is malfunctioning.	Refer to IF CONNECTION BETWEEN NAVI CONTROL UNIT AND GPS ANTENNA IS MALFUNCTIONING