NO.2 DISPLAY SCREEN CHANGES TO WHITE. [CAR-NAVIGATION
SYSTEM]
TROUBLESHOOTING CHART
14
connector (4-pin).
z
Inspect both audio unit connector
and wiring harness-side
connector for poor connection
(such as damaged/pulled-out
pins, corrosion).
z
Are all the pins normal?
No
If the audio unit connector is wrong:
z
Replace the audio unit.
If the wiring harness-side connector is wrong:
z
Repair or replace the pins and/or the connector.
15
z
Verify continuity between rear
mount camera and audio unit at
harness-side connector.
{
Rear mount camera
terminal A (4-pin,
POWER) and audio unit
terminal A (4-pin,
POWER)
{
Rear mount camera
terminal B (4-pin, P-GND)
and audio unit terminal B
(4-pin, P-GND)
{
Rear mount camera
terminal C (4-pin, V-
GND) and audio unit
terminal D (4-pin, V-
GND)
{
Rear mount camera
terminal D (4-pin,
CONPOSITE) and audio
unit terminal C (4-pin,
CONPOSITE)
z
Is there any continuity?
Yes Go to the next step.
No
Inspect the suspect wiring harness and repair or
replace the wiring harness as necessary.
16
z
Does system work properly?
Yes Troubleshooting is completed.
No
Replace the car-navigation unit.
2
Display screen changes to white.
POSSIBLE CAUSE
z
Car-navigation unit malfunction
z
Audio unit malfunction
z
Improper adjustment of the screen contrast
2008 Mazda CX-9 Grand Touring
2008 BODY & ACCESSORIES Symptom Troubleshooting (Car Navigation System) - Mazda CX-9
Microsoft
Sunday, November 15, 2009 10:40:43 AM
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