Dtc P0505[L3 With Tc] - Mazda CX-7 2007 Workshop Manual

STEP
4 VERIFY TROUBLESHOOTING OF DTC P0500
COMPLETED
• Make sure to reconnect all disconnected
connectors.
• Turn ignition switch to the ON position (Engine
off).
• Clear the DTC from the PCM memory using
the M-MDS.
• Warm up the engine.
• Access the RPM and LOAD PID using the M-
MDS.
• Drive the vehicle under the following conditions
for 18s.
— Engine speed: 2,000 rpm or above
— Gear: Gear is in other than NEUTRAL
— Load: 40% or above
• Is the PENDING CODE for this DTC present?
5 VERIFY AFTER REPAIR PROCEDURE
• Perform the "After Repair Procedure".
(See01-02-10 AFTER REPAIR
PROCEDURE[L3 WITH TC].)
• Are any DTCs present?
End Of Sie

DTC P0505[L3 WITH TC]

DTC P0505 IAC system problem
DETECTION
• The PCM cannot control idle speed toward the target idle speed during the KOER self test.
CONDITION
• Air cleaner element clogged
• Air intake passage clogged
• A/C relay control circuit malfunction
POSSIBLE
• Generator control circuit malfunction
CAUSE
• Low engine compression (Over capacity of blow-by gas)
• Electronic throttle control system improper operation
• PCM malfunction
Diagnostic procedure
STEP
1 VERIFY RELATED REPAIR INFORMATION
AVAILABILITY
• Check for related Service Bulletins and/or on-
line repair information availability.
• Is any related repair information available?
2 VERIFY RELATED PENDING OR STORED DTCs
• Turn the ignition switch off then to the ON
position. (Engine off)
• Verify pending code or stored DTCs using the
M-MDS.
• Are DTCs P0506, P0507, P0638, P2100,
P2101, P2102, P2103, P2108, or P2119
present?
3 VERIFY ELECTRONIC THROTTLE CONTROL
SYSTEM OPERATION
• Perform the TP sweep inspection.
(See01-03-78 ENGINE CONTROL SYSTEM
OPERATION INSPECTION[L3 WITH TC].)
• Does the electronic throttle control system
work properly?
ON-BOARD DIAGNOSTIC [L3 WITH TC]
INSPECTION
INSPECTION
Yes Replace the PCM, then go to the next step.
(See01-40-6 PCM REMOVAL/INSTALLATION[L3 WITH
TC].)
No Go to the next step.
Yes Go to the applicable DTC troubleshooting.
(See01-02-13 DTC TABLE[L3 WITH TC].)
No Troubleshooting completed.
Yes Perform the repair or diagnosis according to the available
repair information.
• If the vehicle is not repaired, go to the next step.
No Go to the next step.
Yes Perform the applicable DTC troubleshooting.
(See01-02-13 DTC TABLE[L3 WITH TC].)
No Go to the next step.
Yes Go to the next step.
No Repair or replace the malfunctioning part according to the
inspection result.
Then go to Step 9.
ACTION
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ACTION
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