Navigation Unit Will Not Eject Or Accept The Navigation DVD

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Check The No. A15 (10 A) Fuse In The Under-Hood Fuse/Relay Box And The No. B18 (7.5 A) Fuse In The Driver's Under-Dash Fuse/Relay Box.
Are The Fuses OK?

Yes -Go to next step.

No -Replace The Fuse(s), And Recheck. If the fuse blows again, check for a short in the No.A15 (10A) fuse and/or the No.B18 (7.5A) fuse circuit(s).
Turn The Ignition Switch To ON (II).
Eject The Navigation DVD From The Navigation Unit (See navigation Unit Removal/Installation ).
Does The Navigation DVD Eject?

Yes -Go to next step.

No -Go To Step 5.
Reinsert The Navigation DVD Into The Navigation Unit.
Does The Navigation Unit Accept The Navigation DVD?

Yes -Intermittent failure. The system is OK at this time. Inspect for loose or poor connections at navigation unit connector A (8P) terminals No. 1, No. 3, and No. 4.

No -Replace the navigation unit (see Navigation Unit Removal/Installation ).
Measure The Voltage Between Body Ground And Navigation Unit Connector A (8P) Terminals No. 3 And No. 4 Individually.

Fig 1: Measuring Voltage Between Body Ground And Navigation Unit Connector A (8P) Terminals 3
Courtesy of AMERICAN HONDA MOTOR CO., INC.

Is There Battery Voltage?

Yes -Go to next step.

No -If The +B Wire Does Not Have Voltage, Repair An Open In The Wire Between The Under-Hood Fuse Relay Box And The Navigation Unit. If The Acc Wire Does Not Have Voltage, Repair An Open In The Wire Between The Driver's Under-Dash Fuse/Relay Box And The Navigation Unit.
Measure The Voltage Between Navigation Unit Connector A (8P) Terminal No. 1 And Body Ground.

Fig 2: Measuring Voltage Between Navigation Unit Connector A (8P) Terminal No. 1 And Body Ground
Courtesy of AMERICAN HONDA MOTOR CO., INC.

Is There Less Than 0.2 V?

Yes -Replace The Navigation Unit (See navigation Unit Removal/Installation ).

No -Repair An Open Or High Resistance In The Wire Between The Navigation Unit And Body Ground (G701) (See Right Side Wire Harness (Be) ).