Honda ACCORD HYBRID 2005 Service Manual page 2032

Audio System
S o u n d Q u a l i t y D i a g n o s i s ( c o n t ' d )
10. Turn the ignition switch to LOCK (0).
11. Start the engine in the k n o w n - g o o d vehicle, and
then perform steps 4 thru 10 on the known-good
vehicle.
12. Compare the number of stations received in steps 6
and 9 in the customer's vehicle w i t h the n u m b e r of
stations received in the k n o w n - g o o d vehicle.
• If the number of stations received is the same, or
w i t h i n 10 %, the audio unit's tuner performance
is OK. The problem may be atmospheric
conditions, multi-path interference, or other
obstructions to the radio signal.
• If the customer's vehicle receives fewer stations
by at least 10 %, go to step 2 of poor radio
reception of interference (see page 23-25).
A u d i o - H V A C D i s p l a y M o d u l e
I l l u m i n a t i o n T r o u b l e s h o o t i n g
NOTE: If the display is blank w h e n the headlights are off,
the problem is not in the illumination circuit (see page
23-51).
1. Turn the ignition switch to the ON (II) position.
2. Turn the c o m b i n a t i o n light switch O N .
3. Turn the set/reset knob on the gauge control
module back and forth between full d i m and full
bright.
Does the problem with the illumination affect only
the audio-HVAC display panel?
YES—Go to step 4.
NO—Go to B-CAN Diagnosis Test Mode A
(see page 22-84).
4. Turn the set/reset knob on the gauge control
module back and forth between full d i m and full
bright w h i l e watching the audio-HVAC display
panel buttons, button LEDs, LCD displays.
5. Proceed w i t h the diagnostic procedure for the
appropriate symptom(s).
23-66