WITH KEYLESS ENTRY SYSTEM
Diagnostic procedure
DTC U0127 DIAGNOSTIC PROCEDURE
3
FOR SHORT TO GROUND
z
Turn the ignition switch off.
z
Disconnect keyless CM and
instrument cluster connectors.
z
Inspect for continuity between
keyless CM terminal 3Q
(harness-side) and ground.
z
Is there continuity?
Yes
Repair or replace the wiring harness for a short to
ground between keyless CM terminal 3Q and
instrument cluster terminal 1N, then go to the next
step.
No
Go to the next step.
4
INSPECT FOR KEYLESS CM
MALFUNCTION
z
Turn the ignition switch off.
z
Using the M-MDS, perform the
DTC inspection for the keyless
CM.
z
Is any DTCs present?
Yes
Go to the applicable DTC inspection. (See
DTC
TABLE [IMMOBILIZER SYSTEM (KEYLESS
ENTRY SYSTEM)]
.)
No
Go to the next step.
5
VERIFY TROUBLESHOOTING
COMPLETED
z
Turn the ignition switch to the
ON position and drive the
vehicle at a speed of 25 km/h
{15.5 mph} or more.
z
Clear the DTC from the
memory. (See
TIRE
PRESSURE MONITORING
SYSTEM (TPMS
) ONBOARD
DIAGNOSIS.)
z
Is the same DTC present?
Yes
z
If the malfunction recurs, replace the instrument
cluster. (See
INSTRUMENT CLUSTER
REMOVAL/INSTALLATION
.)
z
Configure the instrument cluster. (See
INSTRUMENT CLUSTER
CONFIGURATION
.)
z
Register the wheel unit ID. (See
WHEEL
UNIT ID REGISTRATION
.)
z
Go to the next step.
No
Go to the next step.
6
VERIFY AFTER REPAIR
PROCEDURE
z
Drive the vehicle at a speed of
25 km/h {15.5 mph} or more
for
10 min or more.
z
Are there any other DTCs
present?
Yes
Go to the applicable DTC inspection. (See
TIRE
PRESSURE MONITORING SYSTEM (TPMS
)
ON-BOARD DIAGNOSIS.)
No
DTC troubleshooting completed.
2008 Mazda CX-9 Grand Touring
2008 SUSPENSION On-Board Diagnostic (Suspension) - Mazda CX-9
Microsoft
Sunday, November 15, 2009 10:25:36 AM
Page 14
© 2005 Mitchell Repair Information Company, LLC.
