DTC P1501 [MZI-3.5]
DTC P1501 (MZI-3.5) DETECTION CONDITION AND POSSIBLE CAUSES
DIAGNOSTIC PROCEDURE
DTC P1501 (MZI-3.5) DIAGNOSTIC PROCEDURE
z
Are any DTCs present?
DTC P1501
Vehicle speed sensor (VSS) out of self-test range
DETECTION
CONDITION
z
Indicates that the vehicle speed input signal is out of the self-test range. If
the PCM detects a vehicle speed input signal any time during the self-test,
DTC P1501 is set and the test aborts.
POSSIBLE CAUSE
z
Noise on the vehicle speed input signal from radio frequency
interference/electro magnetic interference
z
External sources, such as ignition wires, the charging circuit, or aftermarket
equipment
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.
4
VERIFY TROUBLESHOOTING OF
DTC P1501 HAS BEEN
COMPLETED
Yes
Replace the PCM, then go to the next step.
(see
PCM
REMOVAL/INSTALLATION [MZI-
3.5]
.)
2007 Mazda CX-9 Grand Touring
2007 ENGINE PERFORMANCE On-Board Diagnostic (MZI-3.5) - CX-9
Microsoft
Sunday, November 15, 2009 9:26:37 AM
Page 374
© 2005 Mitchell Repair Information Company, LLC.