Mazda CX-9 Grand Touring 2009 Manual page 1104

2008 ENGINE PERFORMANCE On-Board Diagnostic (MZI-3.7) - Mazda CX-9
DTC P0505 Idle speed control system problem
DETECTION
CONDITION
POSSIBLE
CAUSE
DIAGNOSTIC PROCEDURE
DTC P0505 (MZI-3.7) DIAGNOSTIC PROCEDURE
STEP INSPECTION
VERIFY FREEZE FRAME DATA
HAS BEEN RECORDED
1
Has FREEZE FRAME DATA been
recorded?
VERIFY RELATED REPAIR
INFORMATION AVAILABILITY
Verify related Service Bulletins
2
and/or on-line repair information
availability.
Is any related Service Bulletins
available?
VERIFY RELATED PENDING CODE
OR STORED DTCs
Turn the ignition switch off then to
3
the ON position (Engine off).
Verify related pending code or
stored DTCs.
Are other DTCs present?
2008 Mazda CX-9 Grand Touring
The PCM attempts to control engine speed during the KOER self-test. The test
fails when the desired engine speed could not be reached or controlled during
the self-test.
Failure mode effects management condition is present
Intake air restriction
Exhaust restriction
Sludged throttle body
Vacuum leakage
Throttle body malfunction
PCM malfunction
NOTE:
This DTC is informational only and it may be accompanied by other
DTCs. Diagnose other DTCs first. If other DTCs are not present inspect
the intake air system for air restrictions, vacuum leaks, and damage. If
no concerns are present, clear the DTC and repeat the self-test.
Yes Go to the next step.
Record FREEZE FRAME DATA on the repair
No
order, then go to the next step.
Perform repair or diagnosis according to the
available Service Bulletins.
Yes
If the vehicle is not repaired, go to the next
step.
No Go to the next step.
Go to the appropriate DTC troubleshooting. (See
Yes
DTC TABLE [MZI-3.7].)
No Go to the next step.
ACTION