Quick Reference Table

WARNING: This page is about a different car, the 2004 Infiniti G35. However, it is still accessible from the selected car via links, so may be relevant.

Select an applicable diagnosis No. in the diagnosis result quick reference table.
Find estimated malfunctioning system in the diagnosis No. table and perform check by referring to the AV communication line wiring diagram. Refer to WIRING DIAGRAM -COMM- .

Turn the ignition switch to OFF and perform self-diagnosis again.

SCREEN SWITCH

Screen switch

Diagnosis No.

Switch color

Center Control unit⁽¹⁾

Display

IMU⁽²⁾

GPS antenna

Red

Grey

Yellow

⁽¹⁾	Center Control unit =NAVI control unit

⁽²⁾	IMU =Combination meter

CAUTION:

If display has any error, self-diagnosis cannot start.
If AV communication between display and NAVI control unit has any error, self-diagnosis cannot start.

Self-diagnosis Codes

Diagnosis No.	Possible cause
1	NAVI control unit malfunction
2	NAVI control unit judged no map DVD-ROM is inserted.
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 warp age. 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.
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.
5	Combination meter power supply and ground circuit
6	GPS antenna system Visually check for a broken wire in the GPS antenna coaxial cable. Disconnect the GPS antenna connector and check that approximately 5V is supplied from NAVI control unit. If not, the NAVI control unit is inoperative. If the voltage is supplied, replace the GPS antenna and perform self-diagnosis again. If the same result is shown, the NAVI control unit is inoperative.
7	AV communication line circuit malfunction. Check for short circuit in AV communication line between NAVI control unit and combination meter. If no error is found during the above checks, communication circuit in NAVI control unit has a malfunction.