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
DIAGNOSTIC PROCEDURE
NO.25 A/C DOES NOT CUT OFF UNDER WIDE OPEN THROTTLE CONDITIONS (MZI-3.7)
DETECTION CONDITIONS AND POSSIBLE CAUSES
z
If vehicle is repaired, troubleshooting completed.
z
If vehicle is not repaired or additional diagnostic information is not available,
replace the PCM.
(See
PCM REMOVAL/INSTALLATION [MZI-3.7]
.)
25
A/C DOES NOT CUT OFF UNDER WOT CONDITIONS.
DESCRIPTION
A/C compressor magnetic clutch does not disengage under WOT.
POSSIBLE CAUSE
z
Accelerator pedal position sensor malfunction
z
Accelerator pedal position sensor misadjustment
z
Loosely installed accelerator pedal position sensor
STEP
INSPECTION
RESULTS
ACTION
1
Does A/C compressor
disengage when the A/C switch
is turned off?
Yes
Go to the next step.
No
Go to symptom troubleshooting "
NO.24 A/C IS
ALWAYS ON OR A/C COMPRESSOR RUNS
CONTINUOUSLY
".
2
Connect the M-MDS to the
DLC-2.
Turn the ignition switch to the
ON position (Engine off).
Retrieve any DTCs.
Are there any DTCs displayed?
Yes
DTC is displayed:
Go to the appropriate DTC inspection.
(See
DTC TABLE [MZI-3.7]
.)
No
No DTC is displayed:
Inspect accelerator pedal position sensor.
3
z
Verify test results.
{
If normal, return to diagnostic index to service any additional symptoms.
(See
SYMPTOM DIAGNOSTIC INDEX [MZI-3.7]
.)
{
If malfunction remains, inspect related Service Bulletins and/or On-line Repair
Information and perform repair or diagnosis.
z
If vehicle is repaired, troubleshooting completed.
z
If vehicle is not repaired or additional diagnostic information is not available,
replace the PCM.
2008 Mazda CX-9 Grand Touring
2008 ENGINE Symptom Troubleshooting (MZI-3.7) - Mazda CX-9
Microsoft
Sunday, November 15, 2009 10:10:06 AM
Page 85
© 2005 Mitchell Repair Information Company, LLC.
