Honda Accord 2008 Manual page 2498

07/11/02 09:48:40 61TA0000_230_0054
How to check the active noise cancellation system in this check mode
• While in this system check mode, press the No. 1 button to move to the next test item.
• You must remember how many times you pressed the No. 1 button. The system will not show which test item you
are doing.
• For test items 1st to 10th, the speaker will make a low-frequency hum (50 Hz) when the system is normal for more
than 5 seconds up to 1 minute.
• When there is a failure in the system, the speaker will not make a low-frequency hum (50 Hz) or the hum will stop
within 5 seconds for test items 1st to 10th.
• The check mode will be automatically cancelled when the time reaches 1 minute after the starting each test items.
• When you once reach to test item 11th, the test will loop ON and OFF in test item 11th.
• This check mode will end when you start the engine (ignition switch in start (III)), because the power to the audio
system will be cut off.
• If you need to check test item 2nd, 7th and/or 11th, start the check mode with the engine idling. Other test items are
available with the engine idling or stopped.
Test Test Item
Item
No.
――― Self-Diagnostic
mode enter
1st Microphone input,
speaker output
2nd NEP input, door/
trunk switch input
3rd Front speaker output
4th Rear speaker output
5th ANC front
microphone input
6th ANC rear
microphone input
7th NEP (engine speed
signal) input
8th Door/trunk switch
input
9th ―――
―――
10th
11th ANC operation ON/
OFF
*1 The number of items pressing the No. 1 button.
Button Display Sound from Speakers
Operation ON/OFF when System is Normal
No. 1 ＋ No. 6 ――― None
＋
PWR
*1
No. 1 (1) ON None
*1
No. 1 (2) OFF 50 Hz hum for 1 minute
*1
No. 1 (3) ON None
*1
No. 1 (4) OFF 50 Hz hum for 1 minute
*1
No. 1 (5) ON None
*1
No. 1 (6) OFF 50 Hz hum for 1 minute
*1
No. 1 (7) ON None
*1
No. 1 (8) OFF 50 Hz hum for 1 minute
*1
No. 1 (9) ON None
*1
No. 1 (10) OFF 50 Hz hum for 1 minute
No. 1 (11) *1 ON None
*1
No. 1 (12) OFF 50 Hz hum for 1 minute
*1
No. 1 (13) ON None
*1
No. 1 (14) OFF 50 Hz hum for 1 minute
*1
No. 1 (15) ON None
*1
No. 1 (16) OFF 50 Hz hum for 1 minute
No. 1 (17) *1 ON None
*1
No. 1 (18) OFF None
*1
No. 1 (19) ON None
*1
No. 1 (20) OFF None
*1
No. 1 (21) ON None
*1
No. 1 (22) OFF Engine noise reduced
Test Available Condition
Any conditions
• Engine idling
• All doors/trunk closed
Any conditions
Any conditions
Any conditions
Any conditions
Engine idling
All doors/trunk closed
―――
―――
Engine speed about
2,500 rpm (A/T in P or N
position, M/T in neutral)
(cont'd)
23-53