Audio-navigation unit power switch will not turn off (with navigation)
NOTE:
- Check the vehicle battery condition first (see 12 VOLT BATTERY TEST ).
- Check the connectors for poor connections or loose terminals.
- Check for aftermarket accessories plugged into the vehicle's accessory power sockets.
- Turn the ignition switch to ON (II).
- Press the power button off or turn the ignition switch to LOCK (0) to see if the audio-navigation unit turns off.
Does the audio-navigation unit turn off?
YES -Operation is normal.
NO -Go to step 3.
- Turn the ignition switch to ON (II), press the power button on, then turn the ignition switch to LOCK (0).
Does the audio-navigation unit turn off?
YES -Operation is normal.
NO -Go to step 4.
- Turn the ignition switch to LOCK (0).
- Remove the audio-navigation unit (see
AUDIO-NAVIGATION UNIT REMOVAL/INSTALLATION
), and disconnect audio-navigation unit connector A (24P).NOTE:
- Eject all the audio discs before removing the audio-navigation unit to prevent damaging the CD player's load mechanism.
- Remove the PC card before removing the audio-navigation unit.
- Measure the voltage between audio-navigation unit connector A (24P) terminal No. 24 and body ground.Fig 1: Measuring Voltage Between Audio-Navigation Unit Connector A (24P) Terminal No. 24 And Body Ground
Courtesy of AMERICAN HONDA MOTOR CO., INC.
Is there battery voltage?
YES -Check for short to power in the wire.
NO -Substitute a known-good audio-navigation unit (see AUDIO-NAVIGATION UNIT REMOVAL/INSTALLATION ), and recheck. If the symptom/indication goes away, replace the original audio-navigation unit (see AUDIO-NAVIGATION UNIT REMOVAL/INSTALLATION ).