NO.25 A/C DOES NOT CUT OFF UNDER WIDE OPEN THROTTLE CONDITIONS [MZ-CD 1.6 (Y6)]
id0103b3804200
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25 |
A/C DOES NOT CUT OFF UNDER WIDE OPEN THROTTLE CONDITIONS |
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DESCRIPTION
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• The A/C compressor magnetic clutch does not disengage under wide open throttle.
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POSSIBLE CAUSE
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• Accelerator pedal position sensor malfunction
• Accelerator pedal position sensor misadjustment
• Loosely installed accelerator pedal position sensor
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Diagnostic Procedure
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STEP |
INSPECTION |
RESULTS |
ACTION |
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1
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Does the A/C compressor disengage when the A/C switch is turned off?
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Yes
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Go to the next step.
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No
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Go to symptom troubleshooting “NO.24 A/C ALWAYS ON OR A/C COMPRESSOR RUNS CONTINUOUSLY”.
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2
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Perform the self-test function using the M-MDS.
Turn the engine switch to the ON position.
Retrieve any DTC.
Are DTCs displayed?
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Yes
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DTC is displayed:
Go to the appropriate DTC test.
Communication error message is displayed:
Inspect for the following:
• Open circuit between PCM control relay and PCM terminal 236 or 231
• Open circuit between PCM control relay and PCM terminal 241
• PCM control relay stuck open.
• Open or poor ground circuit (PCM terminal 307, 308 or 332)
• Poorly connected vehicle body ground
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No
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No DTC is displayed:
Inspect adjustment accelerator pedal position sensor adjustment.
If the accelerator pedal position sensor adjustment is not correct, adjust the accelerator pedal position sensor.
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3
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Verify test results.
• If normal, return to diagnostic index to service any additional symptoms. (See SYMPTOM DIAGNOSTIC INDEX [MZ-CD 1.6 (Y6)].)
• If the malfunction remains, inspect related Service Information and perform repair or diagnosis.
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