Navigation frequently asks for anti-theft code and/or needs GPS initialization
NOTE:
- Check any official Honda service website for more service information about the navigation system.
- Check that connectors for poor connections or loose terminals.
- Turn the ignition switch to ON (II).
- Measure the voltage between body ground and navigation unit connector C (8P) terminals No. 1 and No. 2 individually.Fig 1: Identifying Voltage Between Body Ground And Navigation Unit Connector C (8P) Terminals No. 1 And No. 2
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Is there battery voltage?
YES - Go to step 3.
NO - If the +B or ACC wire does not have voltage, repair open in the wire between the driver's under-dash fuse/relay box and the navigation unit.
- Measure the voltage between navigation unit connector C (8P) terminal No. 4 and body ground.
Courtesy of AMERICAN HONDA MOTOR CO., INC.
Is there less than 0.1 V?
YES - Replace the navigation unit (see).
NO - Repair open or high resistance in the wire between navigation unit connector C (8P) terminal No. 4 and body ground (G504).