DTC P1500 [MZI-3.7]
DTC P1500 (MZI-3.7) DETECTION CONDITIONS AND POSSIBLE CAUSES
DIAGNOSTIC PROCEDURE
DTC P1500 (MZI-3.7) DIAGNOSTIC PROCEDURE
DTC P1500
Vehicle speed signal
DETECTION
CONDITION
z
Indicates the VSS input signal was intermittent. This DTC is set when a VSS
concern interferes with other OBD tests, such as the catalyst efficiency
monitor, the EVAP monitor, or the HO2S monitor.
POSSIBLE
CAUSE
z
Intermittent sensor connections
z
Intermittent open in the sensor wiring harness circuit(s)
z
Intermittent short in the sensor wiring harness circuit(s)
z
Sensor malfunction
STEP
INSPECTION
ACTION
1
VERIFY FREEZE FRAME DATA HAS
BEEN RECORDED
z
Has FREEZE FRAME DATA been
recorded?
Yes Go to the next step.
No
Record FREEZE FRAME DATA on the repair
order, then go to the next step.
2
VERIFY RELATED REPAIR
INFORMATION AVAILABILITY
z
Verify related Service Bulletins and/or
on-line repair information availability.
z
Is any related Service Bulletins
available?
Yes
Perform repair or diagnosis according to the
available Service Bulletins.
z
If the vehicle is not repaired, go to the
next step.
No
Go to the next step.
3
VERIFY STORED DTC IN DSC/RSC
HU/CM
z
Turn the ignition switch to the ON
position (Engine off).
z
Verify stored DTCs in DSC/RSC
HU/CM.
z
Are DTCs stored?
Yes
Go to the appropriate DTC inspection. (See
ON-
BOARD DIAGNOSIS [DSC/RSC]
.)
No
Go to the next step.
VERIFY TROUBLESHOOTING OF
DTC P1500 HAS BEEN COMPLETED
z
Verify that all disconnected
connectors reconnected.
z
Clear the DTC from the PCM memory
using the M-MDS.
Yes
Replace the PCM, then go to the next step. (See
PCM REMOVAL/INSTALLATION [MZI-
3.7]
.)
2008 Mazda CX-9 Grand Touring
2008 ENGINE PERFORMANCE On-Board Diagnostic (MZI-3.7) - Mazda CX-9
Microsoft
Sunday, November 15, 2009 10:08:41 AM
Page 344
© 2005 Mitchell Repair Information Company, LLC.
