DTC P0505 [MZI-3.5]
DTC P0505 (MZI-3.5) DETECTION CONDITION AND POSSIBLE CAUSES
DIAGNOSTIC PROCEDURE
DTC P0505 (MZI-3.5) DIAGNOSTIC PROCEDURE
(See
KOEO/KOER SELF TEST
[MZI-3.5]
.)
z
Are any DTCs present?
No
Go to the next step.
11
VERIFY AFTER REPAIR
PROCEDURE
z
Perform the "AFTER REPAIR
PROCEDURE".
(See
AFTER REPAIR
PROCEDURE [MZI-3.5]
.)
z
Are any DTCs present?
Yes
Go to the applicable DTC inspection.
(See
DTC TABLE [MZI-3.5]
.)
No
Troubleshooting completed.
DTC P0505
Idle speed control system problem
DETECTION
CONDITION
z
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.
POSSIBLE CAUSE
z
Failure mode effects management condition is present
z
Intake air restriction
z
Exhaust restriction
z
Sludged throttle body
z
Vacuum leakage
z
Throttle body malfunction
z
PCM malfunction
NOTE:
z
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.
STEP
INSPECTION
ACTION
1
VERIFY FREEZE FRAME DATA
HAS BEEN RECORDED
Yes
Go to the next step.
No
Record FREEZE FRAME DATA on the
2007 Mazda CX-9 Grand Touring
2007 ENGINE PERFORMANCE On-Board Diagnostic (MZI-3.5) - CX-9
Microsoft
Sunday, November 15, 2009 9:26:33 AM
Page 256
© 2005 Mitchell Repair Information Company, LLC.