NOTE:
Check the radio reception in an open area.
Compare it to a known-good vehicle of the same
model, year, and trim level whenever possible.
If necessary, have the customer demonstrate the
sym
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
NOTE:
Set the fader and balance positions to the center.
Before doing symptom troubleshooting, do the
power switch will not turn ON troubleshooting.
1. Check that the volume button is not set to
1. Turn the ignition switch ON (II).
2. Check the BRAKE SWITCH in the DATA LIST with
the HDS.
Does it indicate OFF?
YES-Go to step 3.
NO-Inspect the brake pedal position switch.
3. Press the brake pedal, and check the BRAKE
SWITCH in the DATA LIST with the HDS.
Does it change to ON? YES-The bra
1. Check for sound in each mode (AM, FM, XM, and
disc).
Is there sound from the speakers, and is the sound quality normal in each mode?
YES-Intermittent failure. The system is OK at this time. Check for loose
connections at the navigation unit, audio unit, amplifier, and each speaker.
NO-Speaker