Mazda CX-9 Grand Touring 2009 Manual page 1376

NO.25 A/C DOES NOT CUT OFF UNDER WIDE OPEN THROTTLE
CONDITIONS [MZI-3.7]
NO.25 A/C DOES NOT CUT OFF UNDER WIDE OPEN THROTTLE CONDITIONS (MZI-3.7)
DETECTION CONDITIONS AND POSSIBLE CAUSES
25
DESCRIPTION
POSSIBLE CAUSE
DIAGNOSTIC PROCEDURE
NO.25 A/C DOES NOT CUT OFF UNDER WIDE OPEN THROTTLE CONDITIONS (MZI-3.7)
DETECTION CONDITIONS AND POSSIBLE CAUSES
STEP INSPECTION
Does A/C compressor
1 disengage when the A/C switch
is turned off?
Connect the M-MDS to the
DLC-2.
Turn the ignition switch to the
2
ON position (Engine off).
Retrieve any DTCs.
Are there any DTCs displayed?
Verify test results.
If normal, return to diagnostic index to service any additional symptoms.
(See SYMPTOM DIAGNOSTIC INDEX [MZI-3.7].)
3
If malfunction remains, inspect related Service Bulletins and/or On-line Repair
Information and perform repair or diagnosis.
2008 Mazda CX-9 Grand Touring
2008 ENGINE Symptom Troubleshooting (MZI-3.7) - Mazda CX-9
If vehicle is repaired, troubleshooting completed.
If vehicle is not repaired or additional diagnostic information is not available,
replace the PCM.
(See PCM REMOVAL/INSTALLATION [MZI-3.7] .)
A/C DOES NOT CUT OFF UNDER WOT CONDITIONS.
A/C compressor magnetic clutch does not disengage under WOT.
Accelerator pedal position sensor malfunction
Accelerator pedal position sensor misadjustment
Loosely installed accelerator pedal position sensor
RESULTS
Yes
No
Yes
No
If vehicle is repaired, troubleshooting completed.
If vehicle is not repaired or additional diagnostic information is not available,
replace the PCM.
ACTION
Go to the next step.
Go to symptom troubleshooting "NO.24 A/C IS
ALWAYS ON OR A/C COMPRESSOR RUNS
CONTINUOUSLY".
DTC is displayed:
Go to the appropriate DTC inspection.
(See DTC TABLE [MZI-3.7] .)
No DTC is displayed:
Inspect accelerator pedal position sensor.