Honda CR-V: Power switch will not turn ON (No information display and no sound) (with navigation)

Honda CR-V (2006–2011) Service Manual / Audio, Navigation, and Telematics / Audio System / Symptom Troubleshooting / Power switch will not turn ON (No information display and no sound) (with navigation)

1. With the ignition switch ON (II), push the power switch ON to see if navigation unit turns ON.

Does the navigation unit display operate properly, and does the audio sound normal? YES-Intermittent failure, the system is OK at this time.

NO-Go to step 2.

2. Turn the ignition switch OFF.

3. Check the No. 17 (15 A) fuse and the No. 23 (10 A) fuse in the under-hood fuse/relay box and No. 34 (7.5 A) fuse in the under-dash fuse/relay box.

Are the fuses OK? YES-Go to step 4.

NO-Replace the fuse(s), and recheck.

4. Remove the navigation unit.

Check that the navigation unit is properly connected.

Is it connected properly? YES-Go to step 5.

NO-Reconnect the connectors, and recheck the function.

5. Turn the ignition switch ON (II).

6. Measure the voltage between navigation unit connector A (17P) terminal No. 14 and body ground, and between terminal No. 17 and body ground, and navigation unit connector C (12P) No.1 terminal and body ground.

Honda CR-V. Audio System

Honda CR-V. Audio System

Is there battery voltage on both terminals? YES-Go to step 7.

NO-Repair open in the wire(s) between the No. 17 (15 A) fuse in the under-hood fuse/relay box and No. 34 (7.5 A) in the under-dash fuse/relay box and the audio unit.

7. Measure the voltage between navigation unit connector A (17P) No.9 terminal and body ground, navigation unit connector C (12P) No.4 terminal and body ground, and navigation unit connector B (22P) terminal No. 15 and body ground.

Honda CR-V. Audio System

Is there less than 0.1 V on both terminals? YES-Replace the navigation unit.

NO-Repair open or high resistance in the wire between navigation unit connector A (17P) No.9 terminal or navigation unit connector B (22P) No. 15 terminal and body ground (G502), or navigation connector C (12P) and body ground (G504),

Power switch will not turn ON (No information display and no sound) (without navigation)

1. With the ignition switch ON (II), push the power switch ON to see if audio unit turns ON.

Does the audio unit operate properly, and does the audio sound normal? YES-Intermittent failure, the system is OK at this time.

NO-Go to step 2.

2. Turn the ignition switch OFF.

3. Check the No. 23 (10 A) fuse in the under-hood fuse/relay box and No. 34 (7.5 A) fuse in the under-dash fuse/relay box.

Are the fuses OK? YES-Go to step 4.

NO-Replace the fuse(s), and recheck.

4. Remove the audio unit. Check that the audio unit is properly connected.

Is it connected properly? YES-Go to step 5.

NO-Reconnect the connector, and recheck the function.

5. Turn the ignition switch ON (II).

6. Measure the voltage between audio unit connector A (17P) termina1 No.14 and body ground, and between terminal No. 17 and body ground.

Honda CR-V. Audio System

Is there battery voltage on the both terminals? YES-Go to step 7.

NO-Repair open in the wire(s) between the No. 23 (10 A) fuse in the under-hood fuse/relay box and No. 34 (7.5 A) in the under-dash fuse/relay box and the audio unit.

7. Measure the voltage between audio unit connector A (17P) No.9 terminal and body ground.

Honda CR-V. Audio System

Is there less than 0.1 V? YES-Replace the audio unit.

NO-Repair open or high resistance in the wire between audio unit connector A (17P) No.9 terminal and body ground (G504).

Power will not turn OFF (with navigation)

1. With the ignition switch ON (II), push the power switch OFF or turn the ignition switch OFF to see if the navigation unit turns OFF.

Is the navigation unit OFF? YES-Operation is normal at this time.

NO-Go to step 2.

2. Turn the ignition switch OFF.

3. Remove the navigation unit.

Disconnect navigation unit connector A (17P).

4. Measure the voltage between navigation unit connector A (17P) terminal No. 14 and body ground.

Honda CR-V. Audio System

Is there voltage? YES-Check for short to power on WHT wire.

NO-Replace the navigation unit.

Power will not turn OFF (without navigation)

1. With the ignition switch ON (II), push the power switch. OFF or turn the ignition switch OFF to see if the audio unit turns OFF.

Is the audio unit OFF? YES-Operation is normal at this time.

NO-Go to step 2.

2. Turn the ignition switch OFF.

3. Remove the audio unit.

Disconnect audio unit connector A (17P).

4. Measure the voltage between audio unit connector A (17P) terminal No. 14 and body ground.

Honda CR-V. Audio System

Is there voltage? YES-Check for short to power on WHT wire.

NO-Replace the audio unit.

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