2
z
Does it change to rear view
screen?
No
Go to Step 11.
3
z
Turn the ignition switch to the
LOCK position.
z
Remove the car-navigation unit.
z
Inspect the car-navigation unit
connector (24-pin).
z
Is the car-navigation unit
connector connected securely?
Yes Go to the next step.
No Securely connect the car-navigation unit connector.
4
z
Disconnect the car-navigation
unit connector.
z
Inspect both car-navigation unit
connector and wiring harness-
side connector for poor
connection (such as
damaged/pulled-out pins,
corrosion).
z
Are all the pins normal?
Yes Go to the next step.
No
If the car-navigation unit connector is wrong:
z
Replace the car-navigation unit.
If the wiring harness-side connector is wrong:
z
Repair or replace the pins and/or the connector.
5
z
Inspect the voltage between the
car-navigation unit wiring
harness-side connector (16-pin)
terminals B (B+) and A (GND).
z
Is the voltage
B+?
Yes Go to the next step.
No
Inspect the suspect wiring harness and repair or
replace the wiring harness as necessary.
6
z
Turn the ignition switch to the
ACC position.
z
Inspect the voltage between the
car-navigation unit wiring
harness-side connector (16-pin)
terminals D (ACC) and A
(GND).
z
Is the voltage
B+?
Yes Go to the next step.
No
Inspect the suspect wiring harness and repair or
replace the wiring harness as necessary.
7
z
Turn the ignition switch to the
LOCK position.
z
Remove the audio unit.
z
Inspect the audio unit connector
(24-pin).
z
Is the audio unit connector
connected securely?
Yes Go to the next step.
No
Securely connect the audio unit connector.
z
Disconnect the audio unit
connector (24-pin).
z
Inspect both audio unit connector
Yes Go to the next step.
If the audio unit connector is wrong:
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
Page 4
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